CN118234989A

CN118234989A - Tubular connector

Info

Publication number: CN118234989A
Application number: CN202280074349.2A
Authority: CN
Inventors: 威廉·弗农·克卢斯; 萨伊·基肖尔·拉维萨恩卡尔; 萨曼莎·凯利
Original assignee: Reliance Worldwide Corp
Current assignee: Reliance Worldwide Corp
Priority date: 2021-09-10
Filing date: 2022-09-09
Publication date: 2024-06-21
Also published as: AU2022343283A1; WO2023039501A1

Abstract

A push-on fitting is provided. The push-on fitting includes a connector body, a sealing member, a grip ring, a barrel, a retainer sleeve, a plurality of latches, and an interference portion. The sealing member is configured to form a sealing engagement with the fluid conduit. The grip ring includes a plurality of teeth configured to couple to a fluid conduit. The retainer sleeve is received over at least a portion of the barrel and over at least a portion of the connector body. A plurality of latches are located on the retainer sleeve and are configured to secure the retainer sleeve to the connector body to facilitate retention of the sealing member, the grip ring, and the barrel. The interference portion is configured to engage with the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body.

Description

Tubular connector

Cross Reference to Related Applications

The present application claims U.S. provisional application No. filed on 9 and 10 days 2021.

63/242, 951.

Incorporation of reference

U.S. provisional application No.63/242,951 filed on 9/10 of 2021 is incorporated herein by reference in its entirety.

Technical Field

The present disclosure relates generally to pipe fittings. More particularly, the present disclosure relates to push-to-connect fittings (push-to-connect fittings) with improved resistance to cracking.

Background

Catheters are used for the delivery of a variety of liquids and/or gases. The couplings, connectors, and fittings are used to connect the conduits in various ways so that the conduits can be arranged in different configurations to move media through the conduits. The conduit may be rigid or stiff, such as a metal or plastic tube as used in home plumbing applications, or the conduit may be flexible. Connectors are used for end-to-end connection of the conduits, or the connectors may route the conduits in different directions relative to the conduit axis. For example, the connector may be used to change the direction of a conduit, for example at an angle of 45 ° or 90 ° with respect to the flow path of the conduit connected by the connector. Connectors may also be used to branch or split the pipes in different directions. For example, the individual pipe sections may be connected by a tee or Y fitting or a multi-conduit fitting or diameter variation.

Disclosure of Invention

The present disclosure relates to connectors for catheters having improved ease of assembly and coupling, among other benefits. Some catheter connectors may be difficult to assemble or require special tools in order to couple the connector to the catheter. For example, a threaded connector may require a wrench to hold one component while rotating the mating component. Thus, there is a need for a connector that does not require tools to couple with a conduit so that a substantially watertight seal can be manually achieved between the connector and the conduit without the need for tools.

Furthermore, some existing connectors require deformation to join two components or to join the connector to a catheter. For example, the end of a garden hose has an exterior of a hose tap that is crimped around the exterior of the conduit to connect either a male hose tap or a female hose tap to the garden hose. In some connectors, the user must manually deform the ends of the sleeve so that the two parts of the connector cannot be moved axially apart, thereby securing the parts of the connector together. Thus, there is a need for a simpler connector that does not require manual deformation to join the components.

Some connectors are irreversibly coupled to the catheter and are not removable except by breaking the connector. Welded or brazed pipe joints are a historical example of permanent connectors. However, it may be advantageous to uncouple the catheter and reuse the connector. Accordingly, there is a need for a connector that can be uncoupled without damaging the connector. The connector according to the embodiments discussed below solves these problems.

It is desirable that the fluid connector not leak, as this may lead to e.g. system pressure losses or liquid pooling. The connectors according to embodiments discussed below are configured to provide a fluid seal at least at pressures several times greater than the expected operating pressure of the tubular connector.

The various exemplary descriptions that follow contain examples of representative ranges, dimensions, and/or tolerances for certain components. These are provided by way of illustration and not limitation. Unless otherwise indicated, all numbers expressing quantities of properties, parameters, conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about" or "approximately", and thus, unless specified to the contrary, the numerical parameters set forth in the following specification and appended claims are to be construed as approximations. Any numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. The term "about" or "approximately" when used prior to a numerical designation (e.g., the dimension of a property being measured) means an approximation that may vary (+) or (-) by 10%, 5%, or 1%.

At least one embodiment relates to a push-on fitting. The push-on fitting includes a connector body, a sealing member, a grip ring, a barrel, a retainer sleeve, a plurality of latches, and an interference portion. The connector body has a fluid passage extending at least partially therethrough. The sealing member is configured to form a sealing engagement with the fluid conduit. The grip ring includes a plurality of teeth configured for coupling to a fluid conduit. The barrel is positioned adjacent at least a portion of the grip ring and has a hollow portion passing through the barrel. The retainer sleeve is received over at least a portion of the barrel and over at least a portion of the connector body. A plurality of latches are located on the retainer sleeve and are configured to secure the retainer sleeve to the connector body to facilitate retention of the sealing member, the grip ring, and the barrel. When the push-on fitting is assembled, the interference portion is located between the connector body and the retainer sleeve. The interference portion is configured to engage with the retainer sleeve to substantially reduce, inhibit, or prevent rotation of the retainer sleeve relative to the connector body.

In some embodiments, the push-on fitting further includes a disassembly body movable within the hollow portion of the barrel and configured to engage the plurality of teeth of the gripping ring to facilitate decoupling of the plurality of teeth from the fluid conduit.

In some embodiments, the push-on fitting further includes a protective ring positioned within the connector body and positioned between the sealing member and the grip ring. The protective ring includes an inclined surface such that the inclined surface tapers to a smaller diameter as the inclined surface extends away from the grip ring.

In some embodiments, the retainer sleeve includes an inner sleeve surface having a first diameter, and the interference portion includes one or more protrusions having a second diameter that is greater than the first diameter. The first diameter and the second diameter are sized such that there is an interference fit between the interference and the retainer sleeve.

In some embodiments, the retainer sleeve further includes a compliant material (compliant material) such that when the end of the retainer sleeve is engaged with the interference portion, the end expands to a third diameter. The third diameter is greater than the second diameter.

In some embodiments, the interference portion is formed as an annular member having a diameter greater than a diameter of the connector body. The interference portion is also integrally formed with the connector body, and the interference portion extends radially from the connector body in a direction away from the fluid passage.

In some embodiments, the push-on fitting further includes a catch surface and a plurality of latches. The catch surface is located on the connector body and the plurality of latches are configured to engage the catch surface to facilitate coupling the retainer sleeve to the connector body.

In some embodiments, each of the plurality of latches is configured to actuate about a sidewall connected to the latch such that each of the plurality of latches engages the catch surface when the retainer sleeve is engaged with the interference portion.

In some embodiments, the plurality of latches are configured to move in a direction away from or toward the catch surface so as to engage the catch surface.

In some embodiments, the plurality of latches may include one or more protrusions extending laterally from a sidewall connected to the latches.

In some embodiments, engagement of the plurality of latches with the catch surface inhibits rotation of the retainer sleeve relative to the connector body.

In some embodiments, each of the plurality of latches includes a release position and a locking position. Each of the plurality of latches is in a locked position when the retainer sleeve is engaged by the interference portion.

In some embodiments, the interference portion further includes a shoulder surface having a frustoconical profile configured to engage an end of the retainer sleeve when the retainer sleeve is received over the interference portion.

In some embodiments, the shoulder surface facilitates alignment of the retainer sleeve.

In some embodiments, the retainer sleeve comprises a first retainer sleeve, and the connector body further comprises a first connector end coupled to the first retainer sleeve and a second connector end coupled to the second retainer sleeve. The first connector end and the second connector end are in fluid communication with each other via a fluid passage.

Another embodiment relates to a plumbing fitting (plumbing fitting). The plumbing fitting includes a first connector assembly, a second connector assembly, and a fluid passage extending between the first connector assembly and the second connector assembly. The first connector assembly includes a first connector body, a first retainer sleeve, and a first interference portion. The first connector body is centered along a first axis and configured to receive a first fluid conduit end. The first retainer sleeve is coupled to the first connector body and configured to receive the first fluid conduit end. The first interference portion is interposed between the first connector body and the first holder sleeve. The first interference portion is configured to prevent rotation of the first retainer sleeve relative to the first connector body about the first axis. The second connector assembly includes a second connector body, a second retainer sleeve, and a second interference portion. The second connector body is centered along a second axis and is configured to receive a second fluid conduit end. The second connector body is in fluid communication with the first connector body. The second retainer sleeve is coupled to the second connector body and configured to receive a second fluid conduit end. And the second interference portion is interposed between the second connector body and the second retainer sleeve. The second interference portion is configured to prevent rotation of the second retainer sleeve relative to the second connector body about a second axis.

In some embodiments, the first retainer sleeve includes a first inner sleeve surface having a first diameter and the first interference portion has a second diameter that is greater than the first diameter. The first inner sleeve surface and the first interference portion are dimensioned such that there is an interference fit between the first interference portion and the first holder sleeve.

In some embodiments, the first interference portion is integrally formed with the first connector body. The first interference portion extends radially from the first connector body in a direction away from the first axis.

In some embodiments, the first holder sleeve further comprises a compliant material. The compliant material is configured such that when an end of the first holder sleeve engaged by the first interference portion is engaged with the first interference portion, the end expands to a third diameter. The third diameter is greater than the second diameter.

In some embodiments, the pipe fitting further comprises a catch surface and a plurality of latches. The clamping surface is positioned on the first connector body. A plurality of latches are located on the first retainer sleeve and are configured to engage the catch surface to facilitate coupling the first retainer sleeve to the first connector body.

In some embodiments, each latch of the plurality of latches is configured to actuate about a sidewall connected to the latch and engage the catch surface when the first interference portion engages the retainer sleeve.

In some embodiments, each of the plurality of latches includes a release position and a locking position. Each of the plurality of latches is in a locked position when the first retainer sleeve is engaged by the first interference portion.

Another embodiment relates to a connector assembly. The connector assembly includes a connector body and a retainer sleeve. The connector body has a fluid passage extending at least partially therethrough. The connector body also includes a first end and a second end opposite the first end. The first connector flange extends radially away from the connector body and is positioned between the first end and the second end. The first connector flange has a first diameter. A second connector flange extends radially from the connector body and is positioned between the first connector flange and the second end. The second connector flange has a second diameter that is greater than the first diameter. The retainer sleeve is configured for coupling to the connector body and is configured for extending around the fluid passage. The retainer sleeve includes a first sleeve end and a second sleeve end opposite the first sleeve end. The retainer sleeve further includes an inner sleeve surface having a third diameter, wherein the third diameter is smaller than the second diameter. The retainer sleeve further includes a plurality of latches positioned circumferentially about and extending radially inward relative to the inner sleeve surface. The retainer sleeve is configured such that when the retainer sleeve is coupled to the connector body and the second connector flange is engaged with a portion of the inner sleeve surface proximate the first sleeve end, the portion of the inner sleeve surface proximate the first sleeve end expands to a fourth diameter greater than the second diameter in response to deformation of the retainer sleeve, and the plurality of latches actuate inwardly toward the connector body when the first sleeve end expands to the fourth diameter.

In some embodiments, the connector body further includes a catch surface positioned on the first connector flange and extending circumferentially around the fluid channel. The plurality of latches are configured to engage the catch surface when the retainer sleeve is coupled to the connector body.

In some embodiments, the connector body further includes a shoulder surface positioned between the first connector flange and the second connector flange. The shoulder surface tapers outwardly toward the second connector flange to facilitate centering of the retainer sleeve about the connector body.

In some embodiments, the third diameter is about 0.01 millimeters or more to about 0.15 millimeters or less (inclusive) less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

In some embodiments, the third diameter is about 0.2 millimeters or more to about 0.5 millimeters or less (inclusive) less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

In some embodiments, the retainer sleeve is a first retainer sleeve, and the connector body further includes a first connector end and a second connector end. The first connector end is coupled to the first retainer sleeve. The second connector end is coupled to a second retainer sleeve that is substantially similar to the first retainer sleeve. The first connector end and the second connector end are in fluid communication with each other via a fluid passage.

Another embodiment relates to a method of manufacturing a connector assembly. The method includes the steps of obtaining a connector body and obtaining a retainer sleeve configured to be received over at least a portion of the connector body. The retainer sleeve extends about an axis. The retainer sleeve includes a first sleeve end, a second sleeve end opposite the first sleeve end, and an inner sleeve surface having an inner sleeve diameter. The method further includes positioning an interference portion circumferentially around the connector body, the interference portion being an annular body having a retention diameter greater than a diameter of the inner sleeve. A plurality of internal components is then positioned. The method further includes pressing the retainer sleeve around the connector body and the interference portion such that the interference portion is interposed between the retainer sleeve and the connector body and such that the interference portion engages a portion of the inner sleeve surface proximate the second sleeve end and, in response to deformation of the retainer sleeve, causes a diameter of the portion of the inner sleeve surface proximate the first sleeve end to expand to a coupling diameter that is greater than the inner sleeve diameter.

In some embodiments, pressing the retainer sleeve around the connector body and the interference portion forms an interference fit between the retainer sleeve and the interference portion, thereby preventing rotation of the retainer sleeve relative to the connector body about the axis.

In some embodiments, the connector body further comprises a catch surface, and the retainer sleeve further comprises a plurality of latches configured to engage with the catch surface when the retainer sleeve is coupled to the connector body. The method further includes pressing the retainer sleeve around the connector body and the interference portion such that the plurality of latches engage the catch surface.

In some embodiments, the connector body further includes a shoulder surface defining a frustoconical profile diverging outwardly toward the interference portion. The method further includes pressing the retainer sleeve around the connector body and the interference portion such that the inner sleeve surface engages the shoulder surface. Engagement of the retainer sleeve with the shoulder surface causes the second sleeve end to expand to the coupling diameter and facilitates centering of the retainer sleeve about the connector body and the interference portion.

Another embodiment relates to a push-on fitting. The push-on fitting includes a connector body having a fluid passage extending at least partially therethrough. The connector body may include a first portion extending circumferentially about the longitudinal axis. The first portion has a first engagement surface and a catch surface. The first engagement surface defines a first portion diameter, wherein the catch surface is continuous with the first engagement surface and extends circumferentially about the longitudinal axis, and the catch surface extends perpendicular to the longitudinal axis. The push-on fitting further includes: a sealing member configured to form a sealing engagement with the fluid conduit; a grip ring comprising a plurality of teeth configured for coupling to a fluid conduit; and a barrel positioned adjacent at least a portion of the grip ring and having a hollow portion passing through the barrel. A grip ring may be interposed between the cartridge and the sealing member. The push-on fitting further comprises: a retainer sleeve received over at least a portion of the cartridge and at least a portion of the connector body; and a plurality of latches located on the retainer sleeve. The plurality of latches are configured to secure the retainer sleeve to the connector body to facilitate retention of the sealing member, the grip ring, and the cartridge. The push-on fitting includes an interference portion interposed between the connector body and the retainer sleeve. The interference portion may be configured to engage with the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body. The interference portion may include a second engagement surface that is an outermost radial surface of the interference portion. The second engagement surface may be concentric with the longitudinal axis of the connector body and the first engagement surface. The second engagement surface defines a second portion diameter that is greater than the first portion diameter.

Drawings

Other embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, by way of example only, in which like reference numerals refer to like parts throughout, and in which:

FIG. 1 is an exploded side cross-sectional view of a connector assembly taken along section 1-1 of FIG. 11, according to an exemplary embodiment;

FIG. 2 is a side cross-sectional view of a protector body of the connector assembly of FIG. 1, according to an exemplary embodiment;

FIG. 3 is a perspective view of the protector body of FIG. 2 according to an exemplary embodiment;

FIG. 4 is a perspective view of a gripping body of the connector assembly of FIG. 1 according to an exemplary embodiment;

FIG. 5 is a side cross-sectional view of a barrel of the connector assembly of FIG. 1 according to an exemplary embodiment;

FIG. 6 is a perspective view of the cartridge of FIG. 6 according to an exemplary embodiment;

fig. 7 is a side cross-sectional view of a breakaway body of the connector assembly of fig. 1 according to an exemplary embodiment;

FIG. 8 is a perspective view of the separation body of FIG. 7, according to an exemplary embodiment;

fig. 9 is a side view of the connector assembly of fig. 1 according to an exemplary embodiment;

fig. 10 is a distal end view of the connector assembly of fig. 9;

FIG. 11 is a proximal end view of the connector assembly of FIG. 9;

FIG. 12 is a cross-sectional view of the connector assembly of FIG. 1 according to an exemplary embodiment;

FIG. 13 is a cross-sectional view of the connector assembly of FIG. 1 according to another exemplary embodiment;

Fig. 14 is a side cross-sectional view of a connector body of the connector assembly of fig. 1 according to an exemplary embodiment;

Fig. 15 is a side view of the connector body of fig. 14 according to an exemplary embodiment;

FIG. 16 is a side cross-sectional view of a retainer sleeve of the connector assembly of FIG. 1 according to an exemplary embodiment;

FIG. 17 is a side view of the retainer sleeve of FIG. 16 according to an exemplary embodiment;

FIG. 18 is a side cross-sectional view of the retainer sleeve of FIG. 16 having a plurality of latches in a release position;

FIG. 19 is a side cross-sectional view of the retainer sleeve of FIG. 16 having the plurality of latches of FIG. 18 in a locked position;

FIG. 20 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 21 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 22 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 23A is a side view of a plumbing fitting having the connector assembly and end wall of FIG. 1, according to an exemplary embodiment;

FIG. 23B is a distal end view of the tubing fitting of FIG. 23A;

FIG. 23C is a proximal end view of the tubing fitting of FIG. 23A;

FIG. 24 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 25 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 26 is a side view of a plumbing fitting having a plurality of the connector assemblies of FIG. 1, according to an exemplary embodiment;

FIG. 27 is a flowchart of a method of assembling a connector assembly according to an exemplary embodiment;

FIG. 28 is a front view of a partially assembled connector assembly positioned on a fixture;

FIG. 29 is a front view of a retainer sleeve positioned over the partially assembled connector assembly of FIG. 28;

FIG. 30 is a front view of a press operable to partially couple a retainer sleeve to a connector body;

FIG. 31 is an elevation view of a press operable to fully couple a retainer sleeve to a connector body to form a connector assembly according to an exemplary embodiment;

FIG. 32 is a front elevational view of the press operatively disengaged from the fully assembled connector assembly of FIG. 31; and

Fig. 33 is a front view of the connector assembly of fig. 32 positioned on a fixture.

Detailed Description

As used herein, the relative directions and terms "inward" and "outward" are relative to the longitudinal axis, with inward being in a direction radially toward the longitudinal axis and outward being in a direction radially away from the longitudinal axis.

The relative directions and terms "distal" and "proximal" are used with respect to a connector assembly secured to an end of a fluid conduit, wherein the distal direction is toward the end of the connector assembly at one end of the fluid conduit (e.g., the receiving end of the connector assembly; toward the right side of fig. 1) and the proximal direction is toward the beginning of the fluid conduit secured to the connector assembly (e.g., toward the left side of fig. 1). The relative direction and terms lateral or laterally are in a plane generally orthogonal to the longitudinal axis.

Referring generally to the figures, a connector assembly (e.g., a pipe fitting, push-on fitting, etc.) 120 is shown. The connector assembly 120 is configured for sealingly engaging (e.g., forming a substantially watertight connection with) an end of a fluid conduit, such as a copper tube, PEX tube, CPVC tube, PVC tube, or the like. The connector assembly 120 may be used with fluid conduits of different diameters, including fluid conduits having diameters less than 0.25 inches to fluid conduits having diameters greater than 2 inches.

Referring generally to fig. 1-26, a connector assembly 120 is shown. The connector assembly 120 includes an annular connector body 124, a retainer sleeve (e.g., sleeve body) 128, a sealing member (e.g., seal ring) 132, a protective ring (e.g., protective body) 136, a grip ring (e.g., grip body) 140, a barrel (e.g., barrel body) 146, and a removal body (e.g., removal ring) 154.

Briefly, the connector body 124 includes a catch surface 210 at an end thereof. The catch surface 210 extends circumferentially around the connector body 124. The retainer sleeve 128 has at least one latch 310 extending inwardly at the end of the connector assembly 120, in this embodiment, a plurality of latches. The latch 310 engages the catch surface 210 to connect the retainer sleeve 128 to the connector body 124. In the illustrated embodiment, four equally spaced latches are formed along the retainer sleeve 128; however, a different number and configuration of latches may be employed, such as two, three, five, or six latches equally or unequally spaced along the retainer sleeve 128, without departing from the scope of the present disclosure.

As described above and in further detail below, the connector assembly 120 has other components that are retained between the connector body 124 and the retainer sleeve 128 and are preferably housed in the connector body 124 and the retainer sleeve 128. For example, the sealing member 132 is urged (e.g., pressed against) toward the inner shoulder 242 of the connector body 124 by the inwardly stepped projection 406 of the protective ring 136. The grip ring 140 has an annular base 442, the annular base 442 having a plurality of protrusions in the form of teeth 444 extending inwardly and distally toward the connector body 124. The cartridge 146 has a tubular wall 448 near its distal end and a smaller diameter proximal end 450 opposite the tubular wall 448. The tubular wall 448 fits into a recess in the connector body 124 having an annular inner shoulder 242 that limits movement in the longitudinal direction along the longitudinal axis 122. A tubular wall 448 extends along longitudinal axis 122 and encloses sealing member 132, guard ring 136, and grip ring 140.

The removal body 154 is also positioned within the retainer sleeve 128 and includes a tubular proximal end (e.g., free end) 458, the tubular proximal end 458 passing through the proximal end 450 of the barrel 146 when the removal body 154 extends along the longitudinal axis 122. A stop flange 460 is positioned between the angled distal surface 456 and the tubular proximal end 458. The stop flange 460 contacts a second internal shoulder 462 of the cartridge 146. Angled distal surface 456 may have a frustoconical profile that is angled toward longitudinal axis 122 and toward connector body 124. The angled distal surface 456 is further configured to generally conform to the tapered shape formed by the angled teeth 444 of the grip ring 140 and is angled toward the sealing member 132.

Describing the above components in further detail, the connector body 124 may be made of the following materials: metallic materials (e.g., brass, such as Bi brass, naval brass, si brass; stainless steel, etc.); plastics or other polymeric materials suitable for the intended application, such as polyethylene, PPR or UHMWPE, or any combination thereof; a composite material; or any combination of the foregoing materials. The fluid and pressure delivered by the fluid conduit will determine the appropriate materials for the conduit and connector body 124.

In some embodiments, the connector body 124 may be a straight connector body 124a or coupling (fig. 20), a T-shaped connector body 124b (fig. 21), an elbow connector body 124C (fig. 22), a blind end connector body 24d (fig. 23A-23C) that blocks flow through a fluid conduit (similar to the connector body 124), a connector body configured to receive a different diameter fluid conduit, an angled connector body 124e (fig. 24), a multi-way (or 4-way) connector body 124f (fig. 25), a Y-shaped connector body 124g (fig. 26), a T-shaped connector body, other types of connector bodies, or a combination of connector bodies. The connector bodies 124 a-124 g may have a similar or identical retention arrangement as the retention surface 210 so as to be complementary to the retention surface 210. As shown in fig. 23A to 23C, the connector body 124d, which is a blind end connector body, has an end wall 204, and the end wall 204 closes the fluid passage through the connector body 124 d. The end wall 204 forms a tube stop that limits movement of the fluid conduit through the connector body 124 d. In some embodiments, the connector assembly may be incorporated as part of plumbing equipment (such as valves, gauges, etc.).

The first end 200 of the connector body 124 is slightly chamfered such that when the retainer sleeve 128 and the connector body 124 are moved relative to one another, the first end 200 may resiliently urge the resilient latch 310 outwardly until the latch 310 engages the catch surface 210. It is understood that a chamfer may be included on any of the connector bodies 124 a-124 g. The inclined outer shoulder surface 216 adjacent the catch surface 210 may optionally be provided with an inwardly and toward the first end 200 inclined shoulder surface 216 for alignment with the latch 310. Shoulder surface 216 may prevent latch 310 from flexing inward and may strengthen the latch-catch connection (e.g., the connection between latch 310 and catch surface 210) to better resist separation of connector assembly 120 along longitudinal axis 122.

Referring specifically to fig. 1, an exploded cross-sectional view of the connector assembly 120 is shown. Connector assembly 120 extends along and is centered on a longitudinal axis 122. As shown in fig. 9-13 and 19, when the connector assembly 120 is fully assembled, the sealing member 132, the protective ring 136, the grip ring 140, the barrel 146, and the disassembly body 154 are all positioned (e.g., interposed) between the retainer sleeve 128 and the connector body 124. The retainer sleeve 128 and the connector body 124 are coupled together such that the remaining portions of the connector assembly 120 (the sealing member 132, the protective ring 136, the grip ring 140, the barrel 146, and the disassembly body 154) remain in facing (confronting) relationship to one another (e.g., pressed, compressed, clamped together, etc.) without the need to individually couple each component together, such as by potting (potting), adhesive, fasteners, latches, etc.

The sealing member 132 is formed of an elastomeric material, such as rubber, EPDM, or other suitable elastomer. The sealing member 132 is shown as an O-ring having a circular cross-section. However, in some embodiments, the sealing member 132 may have various cross-sectional shapes, such as rectangular, oval, pellet, and the like. The inner and outer diameters of the sealing member 132 are selected to fit into the connector body 124 and seal against the connector body 124 and form a substantially fluid tight seal with a fluid conduit passing through the inner diameter of the sealing member 132. In some embodiments, the inner shoulder 242 is configured to seal against the sealing member 132. As shown in fig. 14, the inner shoulder 242 is continuous with the inner surface 240 at a curved corner 243. The radius of the curved corner may be selected to conform to the shape and size of the cross-section of the sealing member 132.

Referring now to fig. 2 and 3, a guard ring 136 is shown in accordance with an exemplary embodiment. The guard ring 136 includes a first end 400 (e.g., proximal end) and a second end 402 (e.g., distal end) opposite the first end 400. The second end 402 is configured to fit within the first end 200 of the connector body 124 to trap the sealing member 132 between the inner shoulder 242 and the protective ring 136. Allowing the sealing member 132 to translate axially along the longitudinal axis 122 between the inner shoulder 242 and the protective ring 136. In some embodiments, sealing member 132 is allowed to translate a distance of 2mm to 5mm along longitudinal axis 122. The second end 402 is preferably cylindrical, as is the larger diameter outer body of the annular protective ring 136, so as to form an annular radially inwardly extending protective shoulder 404, the protective shoulder 404 acting as a stop for contacting the first end 200 of the connector body 124 to limit the relative axial position of the protective ring 136 and the connector body 124 along the longitudinal axis 122.

Additionally, the protective shoulder 404 facilitates centering (centering) the protective ring 136 within the connector body 124. When protective shoulder 404 is engaged with first end 200, second end 402 extends a predetermined distance toward inner shoulder 242, thus defining an axial movement of sealing member 132 along 2mm to 5mm of longitudinal axis 122. In other words, the protective ring 136 includes a protrusion 406 extending away from the protective shoulder 404, the protrusion 406 facilitating positioning of the sealing member 132 in the fluid passage along the longitudinal axis 122. The extension of the protrusion 406 through at least a portion of the connector body 124 helps to support the received fluid conduit and helps to achieve a higher pressure rating (e.g., burst failure rating) of the connector assembly 120. Further, the protective shoulder 404 reduces tolerance "build-up" that may affect the positioning of the sealing member 132 and the effectiveness of the sealing engagement between the received fluid conduit, the sealing member 132, and the remainder of the connector assembly 120. Thus, the protrusion 406 assists during assembly so that calibration requirements may be reduced. In addition, the protective shoulder 404 extends radially outward only a short distance and radially outward to be less than the first portion diameter 209.

The protective ring 136 includes an inclined surface 410 that is inclined inwardly and toward the second end 402 of the protective ring 136 so as to be generally aligned with the teeth 444 of the gripping ring 140. The inclined surface 410 forms a generally frustoconical surface. The axial length of the protective ring 136 and the inclined surface 410 prevent the teeth 444 of the gripping ring 140 from contacting and damaging the sealing member 132. The guard ring 136 may be made of a suitable plastic, including, for example, but not limited to, a thermoplastic such as nylon fiber.

Referring now to fig. 4, a grip ring 140 is shown according to an exemplary embodiment. The grip ring 140 is made of a metal, such as stainless steel, and includes a flat radially extending base 442 and a plurality of teeth 444 about the longitudinal axis 122. The teeth 444 are equally circumferentially spaced and are in sufficient number to resiliently engage the outer surface of the fluid conduit. Teeth 444 bite into the outer surface of the fluid conduit to selectively prevent removal of the fluid conduit from connector assembly 120 along longitudinal axis 122. When the connector assembly 120 is assembled, the grip ring 140 is held between the barrel 146 and the protective ring 136. The first end 400 of the protective ring 136 engages the distal side of the base 442 while a first internal shoulder 452 (fig. 5) on the cartridge 146 contacts the proximal side of the base 442. As the fluid conduit passes through the opening formed by the teeth 444, the teeth 444 flex radially outward and toward the inclined surface 410. One or both of the inner diameter of the protective ring 136 and the relative angle of the teeth 444 may limit the maximum diameter of a fluid conduit that can be inserted through the grip ring 140 and the protective ring 136.

Referring now to fig. 5 and 6, a cartridge 146 is shown according to an exemplary embodiment. The cartridge 146 includes a second inner shoulder 462 extending radially inward from the first inner shoulder 452. The first internal shoulder 452 forms an axial alignment surface against which the stop flange 460 of the removal body 154 abuts to limit axial movement of the removal body 154 relative to the cartridge 146 in one axial direction. The tubular proximal end 458 (fig. 7) of the detachment body 154 is inserted from the distal end of the cartridge 146 until the stop flange 460 contacts a second internal shoulder 462 on the cartridge 146. Accordingly, barrel 146 limits movement of detachment body 154 and/or grip ring 140 along longitudinal axis 122 (in the proximal direction). The removal body 154 may be moved in a distal direction along the longitudinal axis 122 and may expand the teeth 444 outwardly to disengage the teeth 444 from the fluid conduit previously engaged with the teeth 444. Thus, applying a force in a distal direction on the proximal end 458 of the detachment body 154 may disengage the teeth 444 from the fluid conduit and allow the fluid conduit to be removed from the connector assembly 120. The cartridge 146 may be formed of a suitably strong polymer compatible with the fluid carried in the fluid conduit. In some embodiments, the cartridge 146 is formed from POM (polyoxymethylene).

Referring now to fig. 7 and 8, a removal body 154 is shown in accordance with an exemplary embodiment. When connector assembly 120 is assembled, disassembly body 154 is positioned within barrel 146 and is configured to move axially along longitudinal axis 122 while positioned within barrel 146. The angled distal surface 456 of the disassembly body 154 is located on the proximal side of the teeth 444, while the angled surface 410 on the guard ring 136 is located on the distal side of the teeth 444. Teeth 444 are interposed between angled distal surface 456 and angled surface 410. Advantageously, the angled distal surface 456 on the removal body 154 is configured to engage the base of the tooth 444 adjacent the base 442. The detachable body 154 may be made of POM.

The configuration of the connector assembly 120 is described in further detail below, the protective ring 136 advantageously has an engagement member 477 (fig. 2), the engagement member 477 extending radially away from an outer surface of the protective ring 136 and configured for mating with another engagement feature on the barrel 146. The illustrated construction of the engagement member 477 includes a slightly outwardly projecting, preferably slightly raised circumferential ring having a beveled leading and/or trailing edge. When the connector assembly 120 is assembled, the engagement member 477 is located within and configured to fit into a circumferential recess 479 (fig. 5) in the interior of the tubular wall 448 of the barrel 146. Advantageously, when the engagement member 477 on the protective ring 136 is engaged with the recess 479 on the barrel 146, the protective ring 136 and the barrel 146 are held together to secure the gripping ring 140 between the first inner shoulder 452 on the barrel 146 and the first end 400 of the protective ring 136. Further, the detachment body 154 has preferably been arranged such that the stop flange 460 engages the second internal shoulder 462 of the cartridge 146. The snap-fit connection of the engagement member 477 and the recess 479 limits removal of the disassembly body 154 from the cartridge 146. The removal body 154 is axially movable between the second inner shoulder 462 and the grip ring 140. The cartridge 146 and the protective ring 136 may thus form a snap-fit subassembly that limits movement of the removal body 154 and the gripping ring 140 so that these components may move together as a unit.

The diameter of the tubular wall 448 is selected such that the tubular wall 448 engages the connector body 124. When the cartridge 146 is engaged with the connector body 124, the grip ring 140 is coupled between the guard ring 136 and a first internal shoulder 452 on the cartridge 146, and the removal body 154 is positioned such that the angled distal surface 456 does not urge the teeth 444 radially outward and away from the longitudinal axis 122. Advantageously, the protective ring 136 extends into the connector body 124 and, as described above, allows the sealing member 132 to move axially along the longitudinal axis 122 by about 2mm to 5mm before contacting the protective ring 136 or an internal shoulder 242 on the connector body 124. When the distal end of the fluid conduit is in contact with the sealing member 132, the axial movement of the sealing member 132 is insufficient to deflect or tilt the sealing member 132 sufficiently to become misaligned.

Referring now to fig. 9, a side view of a connector assembly 120 is shown according to an exemplary embodiment. When the retainer sleeve 128 is coupled to the connector body 124, the retainer sleeve 128 covers a portion of the connector body 124. A portion of the barrel 146 extends axially beyond the proximal end of the retainer sleeve 128, and a portion of the removal body 154 extends axially beyond the proximal ends of both the retainer sleeve 128 and the barrel 146. In some embodiments, the connector assembly 120 does not include an end wall 204, and the fluid is configured to flow through both ends of the connector assembly 120.

Referring now to fig. 10, a distal end view of a connector assembly 120 is shown according to another exemplary embodiment. Connector body 124 may include an end wall 204 such that connector body 124 has a closed end that cuts off a fluid passage through connector assembly 120 along longitudinal axis 122. In some embodiments, such as shown in fig. 1, the connector body 124 has a central bore 205, the central bore 205 allowing a fluid passage to extend all the way through the connector body 124.

Referring now to fig. 11, a proximal end view of a connector assembly 120 is shown according to an exemplary embodiment. The proximal end of the connector assembly 120 is configured to receive a fluid conduit.

Referring now to fig. 12 and 13, side cross-sectional views of connector assembly 120 are shown, according to an exemplary embodiment. After the connector assembly 120 is assembled, a fluid conduit may then be inserted through the open end of the connector assembly 120. The fluid conduit is inserted through the retainer sleeve 128, through the detachment body 154, and through the tubular wall 448 of the cartridge 146 until the distal end of the fluid conduit passes through the grip ring 140, the protective ring 136, and the sealing member 132. In some embodiments, the fluid conduit is in contact with a hard stop that stops relative axial movement of the fluid conduit along longitudinal axis 122. In some embodiments, the connector assembly 120 includes a bushing 480 that is retained within the connector assembly 120. The liner 480 helps support the inner wall of a fluid conduit configured to be received by the connector assembly 120. In this regard, the bushing 480 will be located inside the removal body 154 and configured to receive a fluid conduit.

The teeth 444 prevent the fluid conduit from being pulled out of the proximal end of the connector assembly 120. The outer diameter of the fluid conduit is greater than the inner diameter of the sealing member 132 to form a substantially fluid tight seal. The interference fit between the sealing member 132 and the fluid conduit may vary depending on the amount of fluid sealing or leakage desired or allowed. Advantageously, seal member 132 is allowed to slide axially in the cylindrical recess, terminating in an internal shoulder 242 at a distance of about 2mm to 5mm along longitudinal axis 122. Or in some embodiments, the sealing member 132 may be pressed against the inner shoulder 242 by the second end 402 of the protective ring 136. That is, the protrusion 406 may extend, for example, to a location where the sealing member 132 is compressed. This may increase the integrity of the sealing engagement achieved by the sealing member 132.

Further, to avoid unintended disengagement of the fluid conduit from the connector assembly 120, the tubular proximal end 458 of the detachment body 154 has a selected axial length that terminates with the proximal end of the retainer sleeve 128 and/or the barrel 146. Thus, the sleeve opening 368, the proximal end of the detachment body 154, the tubular proximal end 458, and the proximal end 450 of the barrel 146 are in the same general plane. Advantageously, the detachment body 154 is about 1mm or less slightly distal with respect to a plane passing through the proximal end 458 and/or the proximal end 450. The cartridge 146 is in contact with the connector body 124 and may remain stationary relative to the removal body 154, which is configured to move axially toward the connector body 124. To avoid inadvertent contact between the proximal end of the detachment body 154 and the grip ring 140 (which may reduce contact of the grip ring 140 with the grip force of the fluid conduit), the proximal end of the detachment body 154 may be flush with or slightly remote from both the first end 300 of the retainer sleeve 128 and the proximal end of the barrel 146, such that the connector body 124 and the barrel 146 resist axial movement of the detachment body 154 when a force is provided to the barrel 146 or the connector body 124 on at least the detachment body 154. In other words, the removal body 154 is positioned such that an external force applied to the cartridge 146 from at least the removal body 154 will not allow the removal body 154 to move to a position that disengages the teeth 444 from the fluid conduit. On this basis, to release the fluid conduit, the connector assembly 120 may require a specific tool to individually engage the removal body 154 without engaging other components of the connector assembly 120.

To remove the fluid conduit from the connector assembly 120, the removal body 154 is pushed axially along the longitudinal axis 122 toward the distal end of the connector assembly 120 (e.g., with a special tool) and toward the connector body 124 such that the ramped surface 410 of the removal body 154 engages the teeth 444 and expands the teeth 444 outwardly, thereby disengaging the teeth 444 from the outer surface of the fluid conduit and allowing the fluid conduit to be removed along the longitudinal axis 122. Accordingly, the connector assembly 120 is configured such that a portion of the connector assembly 120 surrounds and prevents lateral movement of the fluid conduit relative to the connector assembly 120 and prevents lateral removal of the fluid conduit from the connector assembly 120.

Advantageously, the connector assembly 120 allows components (e.g., fluid conduits) to be arranged and snapped together for relatively convenient use. The connector assembly 120 does not require manual deformation of any components to create a substantially watertight engagement with the fluid conduit. The connector assembly 120 need only be placed over the end of the fluid conduit and either or both of the connector assembly 120 and the fluid conduit are moved axially together to connect them such that the sealing member 132 provides a fluid tight connection while the connector body 124 (or 124 a-124 g) allows the fluid conduit to be used for various fluid connections. If the user wishes to disconnect these components, the removal body 154 may be used and manually pressed to disengage the fluid conduit, e.g., a tool may be used to engage the proximal end of the removal body 154 and move it axially along the longitudinal axis 122 to release the gripping ring 140 and disengage the fluid conduit.

Advantageously, the latch opening 314 does not allow manual access by a user's finger to release the latch member 311 from the catch surface 210. The use of two or more mating latches and catches (catches) and the close fit of the retainer sleeve 128 around the closure member makes it impractical to sequentially release the plurality of latches 310 from the catch surface 210. Thus, disengagement of the plurality of latches 310 from the catch surface 210 is preferably not accomplished without special tools or without permanently deforming at least one of the retainer sleeve 128 or the connector body 124. Thus, the coupling between the plurality of latches 310 and the catch surface 210 is not a releasable (e.g., removable, selectively releasable) connection, and deformation or breakage of the retainer sleeve 128 or connector body 124 may be required, which may result in a visual record (e.g., indicia) of the disconnection of the plurality of latches 310. In some embodiments, the plurality of latches 310 and the catch surface 210 form a permanent connection between the retainer sleeve 128 and the connector body 124 that cannot be removed without damaging the connector assembly 120.

As described above, the connector assembly 120 may be formed from one or more materials. For high strength or high pressure applications, it is considered suitable that all components, except the sealing member 132, be made of a suitable metal. The materials used for the fluid conduit will vary depending on the intended use and may include metal tubing (e.g., copper, brass, iron), rigid plastic tubing (e.g., for tubing), flexible tubing of plastic or flexible tubing of braided metal, and braided plastic or other braided materials.

Referring now to fig. 14, a side cross-sectional view of the connector body 124 is shown in accordance with an exemplary embodiment. The connector body 124 includes a substantially annular body having a first end 200 (e.g., distal end) and a second end 202 (e.g., proximal end) opposite the first end 200. The first end 200 is configured to receive a fluid conduit, such as a copper tube. As generally shown in fig. 14, the second end 202 is open such that fluid is configured to flow through both ends of the connector body 124 (e.g., the first end 200 and the second end 202). The second end 202 may be fluidly coupled to a pipe fitting having a plurality of connector assemblies 120. For example, the tee fitting may include three connector assemblies 120. Fig. 20-26 illustrate other exemplary fittings. In some embodiments, as generally shown in fig. 23A-23C, the second end 202 includes an end wall 204, the end wall 204 being fluid-tight and providing a hard stop for the fluid conduit.

The connector body 124 also includes a first portion (e.g., flange) 206, the first portion 206 extending radially away from the annular body proximate the first end 200. First portion 206 extends circumferentially about longitudinal axis 122. The first portion 206 includes a first engagement surface 208 and a catch surface 210. The first engagement surface 208 is the outermost radial surface of the first portion 206. In some embodiments, first engagement surface 208 is concentric with longitudinal axis 122. The first engagement surface 208 defines a first portion diameter 209 (e.g., a first diameter). The catch surface 210 is continuous with the first engagement surface 208, extends circumferentially about the longitudinal axis 122, and extends substantially perpendicular to the longitudinal axis 122.

The connector assembly 120 also includes an interference portion (or interference feature) 212 positioned along the connector body 124. For example, as shown in fig. 14 and 15, the interference portion 212 extends circumferentially around the connector body 124 at a location between the first end 200 and the second end 202. In some embodiments, the interference portion 212 extends circumferentially around the connector body 124 at a location between the first portion 206 and the second portion (e.g., the second end 202). The interference portion 212 includes a second engagement surface 214. The second engagement surface 214 is the outermost radial surface of the interference section 212. In some embodiments, second engagement surface 214 is concentric with longitudinal axis 122 and first engagement surface 208. The second engagement surface 214 defines a second portion diameter 218 (e.g., a second diameter).

The connector assembly 120 also includes a shoulder surface 216. The shoulder surface 216 is continuous with the second engagement surface 214 and extends circumferentially about the longitudinal axis 122. In one embodiment, the shoulder surface 216 defines a frustoconical or conical profile that tapers to a larger diameter as the shoulder surface 216 extends along the connector body 124. The shoulder surface 216 acts as a ramp that guides a portion of the retainer sleeve 128 into engagement with the second engagement surface 214 during assembly. In some embodiments, second portion diameter 218 is greater than first portion diameter 209. In some embodiments, second portion diameter 218 is greater than first portion diameter 209 by an amount between about 0.1mm (millimeters) and about 1.0mm, for example 0.5mm.

During assembly of the connector assembly 120, the interference portion 212 may be positioned between the retainer sleeve 128 and the connector body 124. In some embodiments, the interference portion 212 is coupled to the connector body 124. In the illustrated embodiment, as shown in fig. 14 and 15, the interference portion 212 and the shoulder surface 216 are integrally formed with the connector body 124. As used herein, two or more elements are "integrally formed" with one another when they are formed and joined together as part of a single manufacturing step to form a single piece or unitary construction that cannot be disassembled without at least partial destruction of the entire part. For example, the interference portion 212 and the shoulder surface 216 may be formed into the connector body 124 by turning, milling, or other suitable cutting or machining process such that the interference portion 212 and the connector body 124 are integrally formed. In other examples, the connector body 124 may be molded or otherwise formed to include the interference portion 212 and the shoulder surface 216. In additional or alternative embodiments, the interference portion 212 may be part of the retainer sleeve 128 or coupled to the retainer sleeve 128. For example, the interference portion 212 may include a plurality of ribs, protrusions, etc., or groups thereof formed along or connected to the inner surface of the retainer sleeve 128, configured to engage with the connector body 124 to facilitate an interference fit between the connector body 124 and the retainer sleeve 128.

In some embodiments, the interference portion 212 may be formed separately from the connector body 124 and then coupled to the connector body 124. For example, the interference portion 212 may include an annular ring, such as a circlip or other removable, detachable portion, which may be selectively positioned around the connector body 124. Additionally, the shoulder surface 216 may be formed separately from the connector body 124 and subsequently coupled to the connector body 124. For example, during assembly of the connector assembly 120, the shoulder surface 216 may be interposed between the retainer sleeve 128 and the connector body 124. In some embodiments, the shoulder surface 216 is coupled to the connector body 124. In some embodiments, the shoulder surface 216 may slide between the first portion 206 and the interference portion 212.

Referring to fig. 15, the interference portion 212 may include a flange or other protruding portion (e.g., second flange 213) extending radially away from the connector body 124 at a location between the first portion 206 and the second end 202. In some embodiments, the second flange 213 is located approximately midway between the first end 200 and the second end 202. In some embodiments, the second flange 213 is positioned closer to the first end 200 than the second end 202. The second flange 213 includes a second engagement surface 214 and a shoulder surface 216. The second engagement surface 214 is the outermost radial surface of the second flange 213.

A connector body recess 230 (e.g., a channel or other recessed area) is positioned between the first portion 206 and the interference portion 212. Connector body groove 230 defines a groove surface 232 extending circumferentially about longitudinal axis 122. In the illustrated embodiment, the sloped shoulder surface 216 is continuous with the groove surface 232. In some embodiments, groove surface 232 is generally concentric with and parallel to longitudinal axis 122. In an alternative embodiment, shoulder surface 216 extends between first portion 206 and interference portion 212 such that shoulder surface 216 is continuous with catch surface 210.

Referring again to fig. 14, an inner shoulder 242 is shown extending radially inward from the inner surface 240 of the connector body 124. The inner shoulder 242 is configured to cooperate with the sealing member 132 to form a substantially watertight seal between the connector body 124, the sealing member 132, and all of the fluid conduit when the fluid conduit extends into the connector assembly 120.

Referring now to fig. 16, a cross-sectional view of the retainer sleeve 128 is shown. The retainer sleeve 128 includes a substantially annular body having a first end 300 (e.g., proximal end) and a second end 302 (e.g., distal end) opposite the first end 300. The first end 300 is configured to receive a fluid conduit, such as a copper tube. The second end 302 is configured to receive the connector body 124 and cover at least a portion of the connector body 124.

Retainer sleeve 128 also includes a sleeve opening 368 extending into first end 300 and along longitudinal axis 122. The sleeve opening 368 is sized to allow the proximal end 450 of the barrel 146 to pass therethrough. Advantageously, the fit between the sleeve opening 368 and the proximal end 450 of the cartridge 146 is snug (e.g., a slip fit) such that the retainer sleeve 128 radially supports the proximal end 450 of the cartridge 146, the proximal end 450 in turn supporting the proximal end 458 of the removal body 154, the proximal end 458 in turn supporting a fluid conduit through the removal body 154. The first end 300 of the retainer sleeve 128 includes a circular reduced diameter portion, shown as sleeve rounded 384, proximate the first end 300. The sleeve rounded portion 384 increases the radial and axial stiffness of the retainer sleeve 128, allows for proper clearance of the components housed within the retainer sleeve 128, and facilitates retention of the components of the connector assembly. As an example, the first end 300 of the retainer sleeve 128 is shown to include a straight portion extending axially away from the sleeve rounded portion 384, which increases the strength of the retainer sleeve 128 and prevents (e.g., inhibits) deployment of the retainer sleeve 128. The outer circumference of the retainer sleeve 128 preferably conforms to the outer shape of the components inside the retainer sleeve 128, including the portion of the connector body 124 that is surrounded by the retainer sleeve 128. Advantageously, the second end 302 of the retainer sleeve 128 overlaps a portion of the connector body 124. As described above, the remainder of the connector body 124 will vary depending on whether the connector body 124 is an in-line connector, an elbow connector, a T-connector, a Y-connector, a multi-tube connector, a blind-end connector, or other type of connector.

The retainer sleeve 128 also includes a sleeve sidewall 303, the sleeve sidewall 303 having an inner sleeve surface 304 extending between the first end 300 and the second end 302. The inner sleeve surface 304 defines a sleeve diameter 308 (e.g., a third diameter). In some embodiments, sleeve diameter 308 is greater than first portion diameter 209 and less than second portion diameter 218. In some embodiments, sleeve diameter 308 is less than both first portion diameter 209 and second portion diameter 218.

The retainer sleeve 128 also includes a plurality of latches 310, the plurality of latches 310 including at least one latch member 311. Each of the plurality of latches 310 extends radially inward from the inner sleeve surface 304 and toward the longitudinal axis 122. Each of the plurality of latches 310 includes a resiliently flexible protrusion in the form of a rectangular tab. A latch opening 314 is positioned at the proximal end of each of the plurality of latches 310 and extends through the sleeve sidewall 303. In some embodiments, each of the plurality of latches 310 includes an elongated member that is resiliently urged in a direction toward the longitudinal axis 122 and is configured to engage the catch surface 210 when the retainer sleeve 128 is coupled to the connector body 124. Each of the plurality of latches 310 is shown in a released position 313. In the release position 313, the plurality of latches 310 extend radially inward from the inner sleeve surface 304 at a first non-zero angle relative to the longitudinal axis 122. In some embodiments, the first non-zero angle may be greater than 15 degrees (e.g., between about 15 degrees and about 30 degrees inclusive), or between about 20 degrees and about 45 degrees inclusive (e.g., between about 28 degrees and about 40 degrees inclusive). In some embodiments, the first non-zero angle is a non-zero angle of five degrees or less. Thus, each of the plurality of latches 310 extends transversely toward longitudinal axis 122 so as to extend into connector body recess 230 and engage catch surface 210.

Each of the plurality of latches 310 is cut into the sleeve sidewall 303 such that each of the plurality of latches 310 is integrally formed with the retainer sleeve 128. In some embodiments, each of the plurality of latches 310 includes a rectangular profile. In some embodiments, each of the plurality of latches 310 includes a trapezoidal profile. In some embodiments, each of the plurality of latches 310 includes a circular profile. After at least one latch of the plurality of latches 310 is formed with retainer sleeve 128, at least one latch member 311 is bent radially inward toward longitudinal axis 122. The latch opening 314 in the side wall 303 defines a latch end 312 (e.g., free end, proximal end, etc.) of the latch member 311. Two parallel cut-outs 316, which are substantially parallel to longitudinal axis 122, extend into sleeve sidewall 303 and face latch openings 314 to define the remaining two sides of the substantially rectangular plate forming latch member 311. Because the sleeve sidewall 303 is curved, the latching end 312 of the latching member 311 is slightly curved with the same general curvature as the sleeve sidewall 303. When the retainer sleeve 128 is coupled to the connector body 124, the curvature of the latch member 311 may approximate the curvature of the groove surface 232. The curvature (e.g., radius) of the latch member 311 provides reinforcement to the latch member 311 and increases the burst failure pressure of the connector assembly 120.

The retainer sleeve 128 also includes an end or region 326 proximate the second end 302. An end 326 extends between the second end 302 and the base of the plurality of latches 310. The curved plane 328 is delineated by dashed lines on fig. 16 and 17 to illustrate the general location of the curvature (bend) of the plurality of latches 310 (e.g., the base of the plurality of latches 310). With the retainer sleeve 128 coupled to the connector body 124, the end 326 at least partially engages the second engagement surface 214 of the interference portion 212. In some embodiments, for example, when the sleeve diameter 308 is less than the second portion diameter 218, the end 326 expands to the second portion diameter 218 such that an interference fit is formed between the retainer sleeve 128 and the connector body 124. As a result, the end 326 is at least one of plastically deformed or elastically deformed to correspond with the second portion diameter 218.

For example, the sleeve diameter 308 may be about 0.001 inch to about 0.005 inch (about between about 0.0254 millimeter to about 0.127 millimeter) smaller than the second portion diameter 218. When the retainer sleeve 128 is pressed onto the connector body 124, the second end 302 of the retainer sleeve 128 engages the shoulder surface 216, which facilitates expansion of the end 326 to the second partial diameter 218.

In some embodiments, the sleeve diameter 308 may be between about 0.008 to about 0.02 inch (e.g., between about 0.2 mm to about 0.5 mm) smaller than the second portion diameter 218. As will be appreciated by those of ordinary skill in the art, an interference fit having the aforementioned tolerance ranges is generally tighter than a standard and acceptable interference fit. Herein, the terms "enhanced interference fit" and "increased interference fit" are used to refer to a tighter interference fit than an acceptable or typical interference fit (e.g., a shaft having a diameter that is larger than a conventionally acceptable diameter for a hole of a given size). As will be appreciated by those skilled in the art, creating an interference fit between two components that is outside of an acceptable tolerance range can result in a fit that is too loose (e.g., a partial interference fit, which can compromise the rigidity of the fitting under load) or too tight (e.g., resulting in inadvertent damage to the components during assembly and/or use, such as causing reaming of the shaft with new holes, bending/breaking of the shaft, or breaking of the holes).

Referring now to fig. 18 and 19, the retainer sleeve 128 is shown before and after coupling to the connector body 124. With particular reference to fig. 18, the plurality of latches 310 are in a released (e.g., initial, first, resting, unlocked, etc.) position 313. In the release position 313, the plurality of latches 310 may extend at a first non-zero angle relative to the longitudinal axis 122. When the retainer sleeve 128 is coupled to the connector body 124, the thin sidewall 303 of the retainer sleeve 128 allows the end 326 to expand radially outward to the second partial diameter 218 to form an expanded portion 327.

Referring now to fig. 19, the retainer sleeve 128 is shown coupled to the connector body 124, wherein the plurality of latches 310 are shown in a locked (e.g., second, engaged, raised, etc.) position 315. In the locked position 315, the plurality of latches 310 are in a different position, orientation, configuration, etc. (i.e., second position, orientation, configuration, etc.) than the position, orientation, configuration, etc. of the latches in the initial release position 313 (i.e., first position, orientation, configuration, etc.), wherein the second position, orientation, configuration, etc. of the plurality of latches 310 results in improved, enhanced, etc. engagement between the plurality of latches 310 and the connector body 124. For example, in the locked position 315, the free end 312 of the latch member 311 may be spaced further away from the inner sleeve surface 304 of the retainer sleeve 128 than the latch member 311 in the initial release position 313. That is, the distance between the free end 312 of the latch member 311 and the inner sleeve surface 304 of the retainer sleeve 128 in the locked position 315 is greater than the distance between the free end 312 of the latch member 311 and the inner sleeve surface 304 of the retainer sleeve 128 in the initial release position 313. Thus, the plurality of latches 310 have improved/enhanced engagement with the catch surface 210 on the connector body 124 (e.g., the increased distance between the free end 312 of the latch member 311 and the retainer sleeve 128 increases the area or portion of engagement between the latch member 311 and the catch surface 210 (or the groove surface 232), reduces the likelihood of partial engagement or discontinuous engagement between the plurality of latches 310 and the catch surface 210 (or the groove surface 232), or increases the engagement force between the plurality of latches 310 and the catch surface 210 (or the groove surface 232). Further, in the locked position 315, the plurality of latches 310 may extend radially inward at a second non-zero angle relative to the longitudinal axis 122 that is greater than the first non-zero angle of the plurality of latches 310 in the initial release position 313.

In some embodiments, the plurality of latches 310 are each biased radially inward (i.e., away from the inner surface of the retainer sleeve) when moving from the release position 313 to the locking position 315. In some embodiments, the flared portion 327 of the end 326 is substantially retained within the end 326 (e.g., between the curved plane 328 and the second end 302). In some embodiments, when the retainer sleeve 128 is coupled to the connector body 124, an enhanced (e.g., increased, extreme, etc.) interference fit creates (e.g., imparts) a slight taper in the retainer sleeve 128 that extends beyond the curved plane 328 and toward the first end 300. In some embodiments, the end 326 expands radially outward at the second end 302 such that the second end 302 has a diameter that is greater than a middle diameter of the retainer sleeve 128. In some embodiments, flared portion 327 extends radially away from longitudinal axis 122 at a non-zero angle. When the retainer sleeve 128 is coupled to the connector body 124, the second end 302 defines a third diameter 329 that is greater than the second portion diameter 218.

Expansion of end 326 causes plurality of latches 310 to deform (e.g., lift, bend, bias, etc.) toward longitudinal axis 122. In other words, each of the plurality of latches 310 transitions from the release position 313 to the locking position 315 when the end 326 is engaged with the interference portion 212. In the release position 313, each of the plurality of latches 310 extends radially inward from the inner sleeve surface 304 at a first non-zero angle. In the locked position 315, each of the plurality of latches 310 is biased radially inward toward the connector body 124 to improve engagement between the plurality of latches 310 and the connector body recess 230. In some embodiments, a plurality of latches 310 snap (e.g., sink) into the catch surface 210 (or groove surface 232) to improve the connection between the retainer sleeve 128 and the connector body 124.

The transition of the plurality of latches 310 from the release position 313 to the locking position 315 facilitates increasing the failure strength of the connector assembly 120 when the end 326 is engaged with the interference portion 212. In other words, when the plurality of latches 310 are in the locked position 315, the environmental burst strength increases (e.g., due at least in part to increased engagement of the plurality of latches 310), and the point of failure may be a failure between the fluid conduit and the teeth 444, rather than a failure at the junction of the retainer sleeve 128 and the connector body 124.

When the retainer sleeve 128 is coupled to the connector body 124, the interference portion 212 engages the end 326 and expands the second end 302 of the retainer sleeve 128 outwardly relative to the second portion diameter 218. Expansion of the end 326 causes the plurality of latches 310 to deform (e.g., rotate or otherwise lift about the curved plane 328 shown in fig. 19) and engage the catch surface 210 (or the groove surface 232). Lifting of the plurality of latches 310 may increase engagement (e.g., binding, engagement force, etc.) between the plurality of latches 310 and the connector body 124. In some embodiments, lifting of the plurality of latches 310 increases the burst failure strength of the connector assembly 120. In particular, the retainer sleeve 128 and the plurality of latches 310 collectively provide sufficient strength to the connector assembly 120 to reduce the likelihood of burst-related failures.

In some embodiments, the connector assembly 120 has an environmental burst strength of 1800 pounds per square inch (psi) or greater. In some embodiments, the environmental burst strength is between about 1000psi and about 2100psi (inclusive). For example, the environmental burst strength may be between 1100psi and 2100psi (inclusive); between 1200psi and 2100psi (inclusive); between 1300psi and 2100psi (inclusive); between 1400psi and 2100psi (inclusive); between 1500psi and 2100psi (inclusive); between 1600psi and 2100psi (inclusive); between 1700psi and 2100psi (inclusive); and between 1800psi and 2100psi (inclusive), etc.

The expansion of the end 326 also serves to facilitate centering of the retainer sleeve 128 about the connector body 124 during assembly. The expansion 327 may extend equally radially outward at all points circumferentially around the end 326 such that the retainer sleeve 128 is centered relative to the interference portion 212. In some embodiments, after the retainer sleeve 128 is coupled to the connector body 124, the plurality of latches 310 are compressed into the connector body 124 using a separate process. For example, the retainer sleeve 128, and in particular the plurality of latches 310 and ends 326, may be coupled to the connector body 124 (e.g., forced into the connector body 124 such that the retainer sleeve 128 is plastically deformed, such as by rolling, knurling, pressing each of the plurality of latches 310 individually to the connector body 124, etc.). In some embodiments, the enhanced interference fit between the connector body 124 and the retainer sleeve 128 helps reduce, inhibit, or prevent rotation of the retainer sleeve 128 relative to the connector body 124 about the longitudinal axis 122 when the retainer sleeve 128 is coupled to the connector body 124. The retainer sleeve 128 may be formed of metal, such as stainless steel, copper, brass, or other suitable materials, such as polymeric materials, composite materials, and the like, or combinations thereof, and is advantageously drawn through a continuous drawing step wherein the latch openings 314 and the plurality of latches 310 are stamped into the retainer sleeve 128 at a subsequent drawing stage.

The various connector assemblies shown in fig. 20-22, 23A-23C, and 24-26 may have one or more components of the connector assembly 120 described above, and the description of these components is not repeated, although certain component numbers are shown in the figures. In particular, it will be appreciated that the connector bodies 124 a-124 g may be used in place of the connector body 124, with the remainder of the connector assembly 120 (i.e., the retainer sleeve 128, the sealing member 132, the protective ring 136, the gripping ring 140, the barrel 146, and the disassembly body 154) being used to form a corresponding connector. As shown in fig. 20 to 22, 23A to 23C, and 24 to 26, a plurality of connectors are used on each end of the connector bodies 124a to 124g, respectively, to form a connector assembly. In configurations where the fluid passage extends through the connector bodies 124 a-124 c, 124 e-124 g, the tube stop may take the form of an internal shoulder on the connector bodies 124 a-124 c, 124 e-124 g that encircles the flow passage and preferably forms an annular surface.

Referring generally to fig. 27-33, a method 500 of assembling the connector assembly 120 is shown according to an exemplary embodiment. At 502, a connector body, such as connector body 124, is obtained. The connector body is positioned along an axis such as longitudinal axis 122. In some embodiments, the connector body includes a fluid passage (e.g., a flow path) extending at least partially therethrough. The connector body may also include an interference portion, such as interference portion 212. In some embodiments, obtaining the connector body includes forming the connector body. The connector body may be formed with or without an interference portion. In some embodiments, the resulting connector body is the connector body 124 according to fig. 14 and 15.

At 504, a retainer sleeve, such as retainer sleeve 128, is obtained. The retainer sleeve is configured for receipt over at least a portion of the connector body and extends circumferentially about the axis. In some embodiments, the retainer sleeve is provided with a plurality of latches. The retainer sleeve is configured for receipt over at least a portion of the connector body, and the retainer sleeve is configured for extending circumferentially about the fluid passage. In some embodiments, disposing the retainer sleeve includes forming the retainer sleeve. In some embodiments, the resulting retainer sleeve is a retainer sleeve 128 according to fig. 16 and 17.

At 506, the connector body is positioned on a fixture, such as fixture 530. As shown in fig. 28, the connector body is positioned on the fixture such that the first end 200 of the connector body is positioned closer to the press 532 than the second end 202 of the connector body.

At 508, a plurality of components are positioned between the retainer sleeve and the connector body. In some embodiments, the sealing member 132, the protective ring 136, the gripping ring 140, the removal body 154, and the barrel 146 are positioned between the connector body 124 and the retainer sleeve 128. For example, as shown in fig. 28, the connector body may be positioned on the fixture 530 and the sealing member 132, the protective ring 136, the grip ring 140, the disassembly body 154, and the barrel 146 may be positioned on the connector body 124 (e.g., in the connector body 124). More specifically, the disassembly body 154 and the grip ring 140 are received between the cartridge 146 and the protective ring 136 by the above-described engagement members 477 and circumferential recesses 479 to form a subassembly. Separately, the sealing member 132 is placed into the connector body 124 and then the subassembly is inserted into the connector body 124 such that the second end 402 of the protective ring 136 enters the cylindrical recess of the connector body 124 until the protective shoulder 404 contacts the first end of the connector body 124. In this manner, the sealing member 132 is positioned between the inner shoulder 242 of the connector body 124 and the second end 402 of the protective ring 136.

At 510, an interference portion (such as interference portion 212) is positioned circumferentially about an axis. In some embodiments, the interference portion is positioned circumferentially around the fluid channel. In some embodiments, the interference portion is coupled to the connector body. In some embodiments, the interference portion is formed into the connector body before or after the connector body is obtained.

At 512, the retainer sleeve is positioned on the inner member such that the inner member is interposed between the retainer sleeve and the connector body. Referring now to fig. 29, the retainer sleeve is shown positioned over the cartridge 146.

At 514, the retainer sleeve is pressed around the connector body and the connector body using a press 532. As shown in fig. 30, the press 532 moves downward in a direction toward the second end 202 of the connector body.

At 516, as shown in fig. 31, the retainer sleeve is moved (e.g., pressed) such that the interference portion is interposed between the connector body and the retainer sleeve. In some embodiments, the retainer sleeve is pressed around the interference portion such that the interference portion engages a portion of the inner sleeve surface proximate the first sleeve end and such that the portion of the inner sleeve surface proximate the first sleeve end deforms and expands in diameter to a coupling diameter that is greater than the inner sleeve diameter. In some embodiments, the press 532 is operated to push (e.g., press) the retainer sleeve 128 against the connector body 124.

In some embodiments, the retainer sleeve is pressed around both the connector body and the interference portion to form an interference fit between the retainer sleeve and the interference portion, thereby preventing rotation of the retainer sleeve relative to the connector body about the axis. In some embodiments, rotation of the retainer sleeve relative to the connector body is substantially reduced, inhibited, or prevented by an interference fit between the retainer sleeve and the interference feature connector body.

At 518, each of the plurality of latches is engaged with a catch surface of the connector body. More specifically, the retainer sleeve 128 is pressed onto the connector body 124 until each of the plurality of latches 310 engages the catch surface 210 to lock (e.g., couple) the retainer sleeve 128 to the connector body 124 and form the connector assembly 120. At the same time, the end 326 of the retainer sleeve 128 is engaged with the interference portion 212 and forms an interference fit, thereby preventing rotation of the retainer sleeve 128 relative to the connector body 124. In some embodiments, such as shown in fig. 31, the interference portion is generally interposed between the retainer sleeve and the connector body at or about the same time that the plurality of latches are engaged with the retention surface of the connector body. Further, the plurality of latches 310 are moved from the initial release position 313 to the locking position 315, for example, to enhance engagement between the plurality of latches 310 and the catch surface 210. While retained by the catch surface 210, a plurality of latches 310 extend in a direction transverse to the longitudinal axis 122. Further, the end 326 of the retainer sleeve 128 engages the shoulder surface 216 such that the shoulder surface 216 causes the end 326 to expand to the second partial diameter 218. Expansion of the end 326 also causes the retainer sleeve 128 to center around the connector body 124 and around the interference portion 212.

At 520, the press 532 is disengaged (e.g., released) from the connector assembly. As shown in fig. 32 and 33, the press 532 is raised above and away from the completed connector assembly 120 so that the connector assembly 120 can be removed from the fixture 530. After the retainer sleeve 128 is coupled to the connector body 124, a portion of the second engagement surface 214 may be uncovered and exposed to air. In some embodiments, the retainer sleeve 128 covers and engages the entire second engagement surface 214 such that no portion of the second engagement surface 214 is visible after the retainer sleeve 128 is coupled to the connector body 124.

Other additional processing steps may be included and steps may be removed, for example, multiple latches may be engaged (e.g., pressed) by mechanical mechanisms to further improve their engagement, without departing from the scope of the present disclosure.

In another embodiment, it should be appreciated that the retainer sleeve 128, the protective ring 136, the gripping ring 140, the cartridge 146, and the removal body 154 form a sub-assembly during production, for example. The subassembly may then be compressed onto the connector body 124 with the sealing member 132 positioned therein. During production of connector assembly 120, latch member 311 may require the above-described sub-assembly to be compressed to allow latch member 311 to engage with catch surface 210, according to embodiments of the present disclosure. That is, one or more of the internal components of the subassembly may be compressed to a point that allows the latch member 311 to engage the catch surface 210. After the compressive force is released, for example at 520, one or more internal components of the subassembly exert tension on the retainer sleeve 128. This tension locks each of the plurality of latches 310 to the catch surface 210, thereby substantially preventing the retainer sleeve 128 from rotating about the longitudinal axis 122. In this regard, the engagement of the plurality of latches 310 with the catch surface 210 also helps to provide the force required to maintain the integrity of the (high pressure) fluid as it passes through the connector assembly 120.

The above description is given by way of example and not limitation. Given the above disclosure, one skilled in the art could make modifications within the scope and spirit of the present disclosure, including various ways of connecting the detachment body 154 with the cartridge 146. For example, an axial slot may be formed along the length of the removal body 154. The slot may be large enough so that the removal body 154 compresses enough to fit through the proximal end of the barrel 146 and expands so that the protective shoulder 404 engages with the second internal shoulder 462 on the barrel 146 to connect those components. Similarly, while each of the plurality of latches 310 is integrally formed with the retainer sleeve 128 and the catch surface 210 is integrally formed with the connector body 124, the positions of these components may be reversed and other configurations of latches and catches may be used. Furthermore, the various features of the present disclosure may be used alone or in different combinations with one another and are not intended to be limited to the specific combinations described herein. Thus, the present disclosure is not limited by the illustrated embodiments.

In this specification, adjectives such as left and right, top and bottom, first and second, etc. may be used to distinguish one element or action from another element or action without necessarily requiring or implying any actual such relationship or order. Additionally or alternatively, references herein to locations of elements (e.g., top, bottom, above, below) may be used merely to describe the orientation of the various elements in the figures. It should be noted that the orientation of the various elements may vary from one exemplary embodiment to another, and such variations are intended to be covered by the present disclosure. Where the context allows, reference to a component, integer, or step (or the like) should not be construed as limited to only one of the component, integer, or step, but may be one or more of the component, integer, or step.

As used herein with respect to structural features (e.g., describing shape, size, orientation, direction, relative position, etc.), the terms "about," "substantially," and similar terms are intended to encompass minor variations of structures that may result, for example, from a manufacturing or assembly process, and are intended to have a broad meaning consistent with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. Accordingly, these terms should be construed to indicate that insubstantial or unimportant modifications or alterations of the described and claimed subject matter are considered to be within the scope of the disclosure as recited in the appended claims.

It should be noted that the term "exemplary" and variations thereof as used herein to describe various embodiments are intended to indicate that such embodiments are possible examples, representations, or illustrations of possible embodiments (and such term is not intended to mean that such embodiments are necessarily the particular or best examples).

As used herein, the term "coupled" and variations thereof mean that two members are directly or indirectly joined to one another. Such joining may be stationary (e.g., permanent or fixed) or movable (e.g., removable or releasable). This coupling may be achieved using the following: the two members are directly coupled to each other, the two members are coupled to each other using a separate intermediate member and any additional intermediate member coupled to each other, or the two members are coupled to each other using an intermediate member integrally formed as a single unitary body with one of the two members. If "coupled" or variations thereof is modified by an additional term (e.g., directly coupled), the general definition of "coupled" provided above is modified by the plain language meaning of the additional term (e.g., "directly coupled" means the joining of two members without any separate intermediate member), resulting in a narrower definition than the general definition of "coupled" provided above. Such coupling may be mechanical, electrical or fluid.

Although the figures and descriptions may show a particular order of method steps, the order of the steps may differ from what is depicted and described unless otherwise specified above. In addition, two or more steps may be performed concurrently or with partial concurrence, unless stated differently above.

In at least one aspect, a push-on fitting includes: a connector body having a fluid passage extending at least partially therethrough; a sealing member configured to form a sealing engagement with the fluid conduit; a grip ring comprising a plurality of teeth configured for coupling to the fluid conduit; a barrel positioned adjacent to at least a portion of the grip ring and having a hollow portion passing through the barrel; a retainer sleeve received over at least a portion of the cartridge and at least a portion of the connector body; a plurality of latches on the retainer sleeve configured to secure the retainer sleeve to the connector body for retention of the sealing member, grip ring and cartridge; and an interference portion positioned between the connector body and the retainer sleeve, the interference portion configured to engage the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body.

In at least one aspect, the push-on fitting further includes a disassembly body movable within the hollow portion of the barrel and configured to engage the plurality of teeth of the gripping ring to facilitate decoupling of the plurality of teeth from the fluid conduit.

In at least one aspect, the push-on fitting further includes a protective ring positioned within the connector body and between the sealing member and the grip ring, the protective ring including an inclined surface such that the inclined surface tapers to a smaller diameter as the inclined surface extends away from the grip ring.

In at least one aspect, the retainer sleeve includes an inner sleeve surface having a first diameter; and the interference portion includes one or more protrusions having a second diameter that is greater than the first diameter such that there is an interference fit between the interference portion and the retainer sleeve.

In at least one aspect, the retainer sleeve includes a compliant material such that when an end of the retainer sleeve engaged by the interference portion engages the interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

In at least one aspect, in the push-on fitting, the interference portion is formed as an annular member having a diameter greater than a diameter of the connector body, the interference portion is integrally formed with the connector body, and the interference portion extends radially from the connector body in a direction away from the fluid passage.

In at least one aspect, the push-on fitting further comprises: a catch surface on the connector body, wherein the plurality of latches are configured to engage the catch surface to facilitate coupling of the retainer sleeve to the connector body.

In at least one aspect, each of the plurality of latches is configured to actuate about a sidewall connected to the latch and engage the catch surface when the retainer sleeve is engaged with the interference portion.

In at least one aspect, the plurality of latches are configured to move in a direction away from or toward the catch surface to engage the catch surface.

In at least one aspect, the plurality of latches can include one or more protrusions extending laterally from a sidewall connected to the latches.

In at least one aspect, engagement of the plurality of latches with the catch surface inhibits rotation of the retainer sleeve relative to the connector body.

In at least one aspect, each of the plurality of latches includes a release position and a locking position, and each of the plurality of latches is in the locking position when the retainer sleeve is engaged by the interference portion.

In at least one aspect, the interference portion further includes a shoulder surface having a frustoconical profile configured to engage an end of the retainer sleeve when the retainer sleeve is received over the interference portion.

In at least one aspect, the shoulder surface facilitates alignment of the retainer sleeve.

In at least one aspect, the retainer sleeve comprises a first retainer sleeve; and the connector body further comprises: a first connector end coupled to the first holder sleeve; a second connector end coupled to the second retainer sleeve; and the first connector end and the second connector end are in fluid communication with each other via a fluid passageway.

In at least one aspect, a plumbing fitting includes a first connector assembly comprising: a first connector body centered along a first axis and configured to receive a first fluid conduit end; a first retainer sleeve coupled to the first connector body and configured to receive the first fluid conduit end; and a first interference portion interposed between the first connector body and the first holder sleeve, the first interference portion configured to prevent rotation of the first holder sleeve relative to the first connector body about the first axis; a second connector assembly, comprising: a second connector body centered along a second axis and configured to receive a second fluid conduit end, the second connector body in fluid communication with the first connector body; a second retainer sleeve coupled to the second connector body and configured to receive a second fluid conduit end; and a second interference portion interposed between the second connector body and the second retainer sleeve, the second interference portion configured to prevent rotation of the second retainer sleeve relative to the second connector body about a second axis; and a fluid passage extending between the first connector assembly and the second connector assembly.

In at least one aspect, in the plumbing fitting, the first retainer sleeve includes a first inner sleeve surface having a first diameter; and the first interference portion has a second diameter that is greater than the first diameter such that there is an interference fit between the first interference portion and the first holder sleeve.

In at least one aspect, in the pipe fitting, the first interference portion is integrally formed with the first connector body, the first interference portion extending radially from the first connector body in a direction away from the first axis.

In at least one aspect, in the plumbing fitting, the first retainer sleeve further comprises a compliant material such that when an end of the first retainer sleeve engaged by the first interference portion engages the first interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

In at least one aspect, the plumbing fitting further comprises: a retaining surface on the first connector body; and a plurality of latches located on the first retention sleeve and configured to engage with the catch surface to facilitate coupling the first retention sleeve to the first connector body.

In at least one aspect, in the plumbing fitting, each of the plurality of latches is configured to actuate about a sidewall connected to the latch and engage the catch surface when the first interference portion engages the retainer sleeve.

In at least one aspect, in the plumbing fitting, each of the plurality of latches includes a release position and a locking position, and each of the plurality of latches is in the locking position when the first retainer sleeve is engaged by the first interference portion.

In at least one aspect, a connector assembly includes a connector body having a fluid passage extending at least partially therethrough, the connector body comprising: a first end and a second end opposite the first end; a first connector flange extending radially from the connector body between the first end and the second end and having a first diameter; and a second connector flange extending radially from the connector body between the first connector flange and the second end, the second connector flange having a second diameter greater than the first diameter; and a retainer sleeve configured for coupling to the connector body and configured for extending around the fluid passage, the retainer sleeve comprising: a first sleeve end and a second sleeve end opposite the first sleeve end; an inner sleeve surface having a third diameter, the third diameter being smaller than the second diameter; and a plurality of latches positioned circumferentially about the inner sleeve surface and extending radially inward relative to the inner sleeve surface; wherein the retainer sleeve is configured such that when the retainer sleeve is coupled to the connector body and the second connector flange is engaged with a portion of the inner sleeve surface proximate the first sleeve end: a portion of the inner sleeve surface proximate the first sleeve end expands to a fourth diameter greater than the second diameter in response to deformation of the retainer sleeve, and the plurality of latches actuate inwardly toward the connector body when the first sleeve end expands to the fourth diameter.

In at least one aspect, in the connector assembly, the connector body further includes a catch surface positioned on the first connector flange and extending circumferentially around the fluid passage; and the plurality of latches are configured to engage the catch surface when the retainer sleeve is coupled to the connector body.

In at least one aspect, in the connector assembly, the connector body further includes a shoulder surface positioned between the first connector flange and the second connector flange, the shoulder surface diverging outwardly toward the second connector flange to facilitate centering of the retainer sleeve about the connector body.

In at least one aspect, in the connector assembly, the third diameter is about 0.01 millimeters or more to about 0.15 millimeters or less (inclusive) less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

In at least one aspect, in the connector assembly, the third diameter is between about 0.2 millimeters (mm) and about 0.5 mm (inclusive) less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

In at least one aspect, in the connector assembly, the retainer sleeve is a first retainer sleeve; and the connector body further comprises: a first connector end coupled to the first holder sleeve; a second connector end coupled to a second retainer sleeve, the second retainer sleeve substantially similar to the first retainer sleeve; and the first connector end and the second connector end are in fluid communication with each other via a fluid passageway.

In at least one aspect, there is provided a method of manufacturing a connector assembly, the method comprising: obtaining a connector body; obtaining a retainer sleeve configured to be received over at least a portion of the connector body and extending about an axis, the retainer sleeve comprising: a first sleeve end and a second sleeve end opposite the first sleeve end; and an inner sleeve surface having an inner sleeve diameter; circumferentially positioning an interference portion around the connector body, the interference portion being an annular body having a retention diameter greater than a diameter of the inner sleeve; positioning a plurality of internal components; and pressing the retainer sleeve around the connector body and the interference portion such that the interference portion is interposed between the retainer sleeve and the connector body and such that the interference portion engages a portion of the inner sleeve surface proximate the second sleeve end and, in response to deformation of the retainer sleeve, causes a diameter of the portion of the inner sleeve surface proximate the second sleeve end to expand to a coupling diameter that is greater than the inner sleeve diameter.

In at least one aspect, pressing the retainer sleeve about the connector body and the interference portion forms an interference fit between the retainer sleeve and the interference portion, thereby preventing rotation of the retainer sleeve about the axis relative to the connector body.

In at least one aspect, the connector body further comprises a retaining surface; the retainer sleeve further includes a plurality of latches configured to engage the catch surface when the retainer sleeve is coupled to the connector body, and the method further includes pressing the retainer sleeve around the connector body and the interference portion such that the plurality of latches engage the catch surface.

In at least one aspect, the connector body further comprises a shoulder surface defining a frustoconical profile diverging outwardly toward the interference portion, and the method further comprises: pressing the retainer sleeve around the connector body and the interference portion such that the inner sleeve surface engages the shoulder surface, the shoulder surface (i) causing the second sleeve end to expand to the coupling diameter, and (ii) facilitating centering of the retainer sleeve around the connector body and the interference portion.

Claims

1. A push-on fitting comprising:

a connector body having a fluid passage extending at least partially therethrough;

a sealing member configured to form a sealing engagement with a fluid conduit;

A grip ring comprising a plurality of teeth configured for coupling to the fluid conduit,

A barrel positioned adjacent to at least a portion of the grip ring and having a hollow portion passing through the barrel;

A retainer sleeve received over at least a portion of the barrel and at least a portion of the connector body;

A plurality of latches on the retainer sleeve configured to secure the retainer sleeve to the connector body so as to retain the sealing member, the grip ring and the barrel, and

An interference portion positioned between the connector body and the retainer sleeve, the interference portion configured to engage the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body.

2. The push-on fitting of claim 1, further comprising a disassembly body movable within the hollow portion of the barrel and configured to engage the plurality of teeth of the grip ring to facilitate decoupling of the plurality of teeth from the fluid conduit.

3. The push-on fitting of claim 1, further comprising a protective ring positioned within the connector body and between the sealing member and the gripping ring, the protective ring including an inclined surface such that the inclined surface tapers to a smaller diameter as the inclined surface extends away from the gripping ring.

4. The push-on fitting of claim 1, wherein:

the retainer sleeve includes an inner sleeve surface having a first diameter; and

The interference portion includes one or more protrusions having a second diameter that is greater than the first diameter such that an interference fit exists between the interference portion and the retainer sleeve.

5. The push-on fitting of claim 4, wherein the retainer sleeve comprises a compliant material such that when an end of the retainer sleeve engaged by the interference portion is engaged with the interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

6. The push-on fitting of claim 1, wherein the interference portion is formed as an annular member having a diameter greater than a diameter of the connector body, the interference portion being integrally formed with the connector body, and the interference portion extending radially from the connector body in a direction away from the fluid passage.

7. The push-on fitting of claim 1, further comprising:

a retaining surface on the connector body,

The plurality of latches are configured to engage the catch surface to facilitate coupling the retainer sleeve to the connector body.

8. The push-on fitting of claim 7, wherein each of the plurality of latches is configured to actuate about a sidewall connected to the latch and engage the catch surface when the retainer sleeve is engaged with the interference portion.

9. The push-on fitting of claim 7, wherein the plurality of latches are configured to move in a direction away from or toward the catch surface so as to engage the catch surface.

10. The push-on fitting of claim 7, wherein engagement of the plurality of latches with the catch surface inhibits rotation of the retainer sleeve relative to the connector body.

11. The push-on fitting of claim 1, wherein:

each of the plurality of latches includes a release position and a locking position, and

Each of the plurality of latches is in the locked position when the retainer sleeve is engaged by the interference portion.

12. The push-on fitting of claim 1, wherein the interference portion further comprises a shoulder surface having a frustoconical profile configured to engage an end of the retainer sleeve when the retainer sleeve is received over the interference portion.

13. The push-on fitting of claim 12, wherein the shoulder surface facilitates alignment of the retainer sleeve.

14. The push-on fitting of claim 1, wherein:

The retainer sleeve includes a first retainer sleeve;

The connector body further includes:

A first connector end coupled to the first holder sleeve;

a second connector end coupled to a second retainer sleeve; and

The first connector end and the second connector end are in fluid communication with each other via the fluid passage.

15. A plumbing fitting, comprising:

A first connector assembly comprising:

A first connector body centered along a first axis and configured to receive a first fluid conduit end;

A first retainer sleeve coupled to the first connector body and configured to receive the first fluid conduit end; and

A first interference portion interposed between the first connector body and the first holder sleeve, the first interference portion configured to prevent rotation of the first holder sleeve relative to the first connector body about the first axis;

A second connector assembly comprising:

a second connector body centered along a second axis and configured to receive a second fluid conduit end, the second connector body in fluid communication with the first connector body;

A second retainer sleeve coupled to the second connector body and configured to receive the second fluid conduit end; and

A second interference portion interposed between the second connector body and the second retainer sleeve, the second interference portion configured to prevent rotation of the second retainer sleeve relative to the second connector body about the second axis; and

A fluid passage extending between the first connector assembly and the second connector assembly.

16. The plumbing fitting of claim 15, wherein:

The first holder sleeve includes a first inner sleeve surface having a first diameter; and

The first interference portion has a second diameter that is greater than the first diameter such that there is an interference fit between the first interference portion and the first holder sleeve.

17. The plumbing fitting of claim 16, wherein the first interference portion is integrally formed with the first connector body, the first interference portion extending radially from the first connector body in a direction away from the first axis.

18. The plumbing fitting of claim 17, wherein the first retainer sleeve further comprises a compliant material such that when an end of the first retainer sleeve engaged by the first interference portion engages the first interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

19. The plumbing fitting of claim 15, further comprising:

A retention surface on the first connector body; and

A plurality of latches located on the first retainer sleeve and configured to engage the catch surface to facilitate coupling the first retainer sleeve to the first connector body.

20. The plumbing fitting of claim 19, wherein each of the plurality of latches is configured to actuate about a sidewall connected to the latch and engage the catch surface when the first interference portion engages the retainer sleeve.

21. The plumbing fitting of claim 19, wherein:

Each of the plurality of latches is in the locked position when the first retainer sleeve is engaged by the first interference portion.

22. A connector assembly, comprising:

A connector body having a fluid passage extending at least partially therethrough, the connector body comprising:

A first end and a second end opposite the first end;

A first connector flange extending radially from the connector body between the first end and the second end and having a first diameter; and

A second connector flange extending radially from the connector body between the first connector flange and the second end, the second connector flange having a second diameter greater than the first diameter; and

A retainer sleeve configured for coupling to the connector body and configured for extending around the fluid passage, the retainer sleeve comprising:

A first sleeve end and a second sleeve end opposite the first sleeve end;

an inner sleeve surface having a third diameter smaller than the second diameter; and

A plurality of latches positioned circumferentially about the inner sleeve surface and extending radially inward relative to the inner sleeve surface;

Wherein the retainer sleeve is configured such that when the retainer sleeve is coupled to the connector body and the second connector flange is engaged with a portion of the inner sleeve surface proximate the first sleeve end:

a portion of the inner sleeve surface proximate the first sleeve end expands to a fourth diameter greater than the second diameter in response to deformation of the retainer sleeve, and

The plurality of latches actuate inwardly toward the connector body when the first sleeve end expands to the fourth diameter.

23. The connector assembly of claim 22, wherein:

The connector body further includes a retaining surface positioned on the first connector flange and extending circumferentially around the fluid passage; and

The plurality of latches are configured to engage the catch surface when the retainer sleeve is coupled to the connector body.

24. The connector assembly of claim 22, wherein the connector body further comprises a shoulder surface positioned between the first connector flange and the second connector flange, the shoulder surface diverging outwardly toward the second connector flange to facilitate centering of the retainer sleeve around the connector body.

25. The connector assembly of claim 22, wherein the third diameter is about 0.01 millimeters or more to about 0.15 millimeters or less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

26. The connector assembly of claim 22, wherein the third diameter is about 0.2 millimeters or more to about 0.5 millimeters or less than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

27. The connector assembly of claim 22, wherein the retainer sleeve is a first retainer sleeve;

The connector body further includes:

A first connector end coupled to the first holder sleeve;

a second connector end coupled to the second retainer sleeve, the second retainer sleeve being substantially similar to the first retainer sleeve; and

28. A method of manufacturing a connector assembly, the method comprising:

Obtaining a connector body;

Obtaining a retainer sleeve configured to be received over at least a portion of the connector body and extending about an axis, the retainer sleeve comprising:

a first sleeve end and a second sleeve end opposite the first sleeve end; and

An inner sleeve surface having an inner sleeve diameter;

circumferentially positioning an interference portion around the connector body, the interference portion being an annular body having a retention diameter greater than the inner sleeve diameter;

positioning a plurality of internal components; and

Pressing the retainer sleeve around the connector body and the interference portion such that the interference portion is interposed between the retainer sleeve and the connector body and such that the interference portion engages a portion of the inner sleeve surface proximate the second sleeve end and expands a diameter of the portion of the inner sleeve surface proximate the second sleeve end to a coupling diameter that is greater than the inner sleeve diameter in response to deformation of the retainer sleeve.

29. The method of claim 28, wherein pressing the retainer sleeve about the connector body and the interference portion forms an interference fit between the retainer sleeve and the interference portion, thereby preventing rotation of the retainer sleeve about the axis relative to the connector body.

30. The method according to claim 28, wherein:

The connector body further includes a retaining surface; and

The retainer sleeve further includes a plurality of latches configured to engage the catch surface when the retainer sleeve is coupled to the connector body, and the method further includes:

the retainer sleeve is pressed around the connector body and the interference portion such that the plurality of latches engage the catch surface.

31. The method of claim 28, wherein the connector body further comprises a shoulder surface defining a frustoconical profile diverging outwardly toward the interference portion, the method further comprising:

Pressing the retainer sleeve around the connector body and the interference portion such that the inner sleeve surface engages the shoulder surface (i) causes the second sleeve end to expand to the coupling diameter, and (ii) facilitates centering of the retainer sleeve around the connector body and the interference portion.

32. A push-on fitting comprising:

A connector body having a fluid passage extending at least partially therethrough, the connector body comprising a first portion extending circumferentially about a longitudinal axis, the first portion having a first engagement surface and a catch surface, the first engagement surface defining a first portion diameter, wherein the catch surface is continuous with the first engagement surface and extends circumferentially about the longitudinal axis, and wherein the catch surface extends perpendicular to the longitudinal axis;

a sealing member configured to form a sealing engagement with a fluid conduit;

A barrel positioned adjacent to at least a portion of the grip ring and having a hollow portion passing through the barrel, the grip ring interposed between the barrel and the sealing member;

An interference portion interposed between the connector body and the retainer sleeve, the interference portion configured to engage with the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body, wherein the interference portion comprises a second engagement surface that is an outermost radial surface of the interference portion, wherein the second engagement surface is concentric with the longitudinal axis and the first engagement surface of the connector body, and wherein the second engagement surface defines a second portion diameter that is greater than the first portion diameter.

33. The push-on fitting of claim 32, wherein the second portion diameter is greater than the first portion diameter by an amount between about 0.1 millimeters and about 1.0 millimeters.