AU2019201421A1 - Improved ferrule bend - Google Patents

Abstract

A conduit of unitary structure comprising a first connection end; a second connection end; a substantially curved body located between the first connection end and the second connection end; and a channel extending from the first connection end to the second connection end through the body is provided. The first connection end is an unthreaded connection end. The second connection end is unthreaded or comprises thread on a circumferentially expanded rim thereof. Associated systems, assemblies, kits, and methods are also provided. 10 1113 141 14 12 24 114 1000 FIG. 1

Description

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FIG. 1

IMPROVEDFERRULEBEND

[0001] This disclosure relates to conduits such as pipes. More particularly, the invention described herein is directed to modified ferrule bends adapted for convenient connection, although without limitation thereto. BACKGROUND

[0002] Conduits, such as pipes, are widely used for transporting fluid flow, such as the flow of water in residential and industrial contexts. A ferrule bend is a form of bent connecting pipe comprising first and second ends, commonly used for attachment to a service connection sourcing water from a mains supply.

[0003] Ferrule bends may be connected to various pipes, including to facilitate transfer of water to a residential or industrial property. Depending on the type of pipe to which the ferrule bend is to be connected, an adapter may need to be fitted with an end of the ferrule bend, to facilitate the connection. SUMMARY

[0004] Broadly provided according to the present invention is a conduit comprising at least one end adapted for connection with a further conduit.

[0005] In a first aspect of the invention, there is provided a conduit comprising: a first connection end; a second connection end; a substantially curved body located between the first connection end and the second connection end; and a channel extending from the first connection end to the second connection end through the body, wherein the first connection end is an unthreaded connection end, and the second connection end is unthreaded or comprises thread on a circumferentially expanded rim thereof.

[0006] Suitably, the first connection end of the conduit is substantially fixed with the body of the conduit.

[0007] Suitably, the second connection end of the conduit is substantially fixed with the body of the conduit.

[0008] In embodiments, the conduit of the first aspect is of unitary structure.

[0009] In embodiments, the first connection end of the conduit is a coupling end. In embodiments, the first connection end is adapted for connection with a fastener. In embodiments, the fastener is a nut. In embodiments, the first connection end comprises a flange for engagement with a nut.

[0010] In embodiments wherein the second connection end of the conduit is unthreaded, the second connection end may be adapted for press fit engagement with a further conduit. In embodiments, the further conduit is a pipe. In embodiments, the pipe is a metallic pipe.

[0011] In said embodiments, the second connection end may comprise a groove for accommodating a seal, such as an O-ring. In embodiments, the groove is adapted to accommodate a seal, such as an O-ring within, or adjacent to, the channel.

[0012] In embodiments wherein the second connection end comprises thread on a circumferentially expanded rim thereof, the second connection end may be adapted for engagement with a fitting for a further conduit. In embodiments, the further conduit is a pipe. In embodiments, the pipe is a plastic pipe.

[0013] In said embodiments, the second connection end may be adapted for threaded engagement with a nut of the fitting. The second connection end may additionally or alternatively be adapted to receive components of the fitting. The second connection end may comprise a chamber for receiving a seal and/or clamp of the fitting.

[0014] In embodiments, the first connection end and the second connection end of the conduit of the first aspect are oriented between about 60° and about 120° apart, including about 70°, 80°, 90°, 100°, and 110° apart. In an embodiment, the first connection end and the second connection end are oriented about 90° apart.

[0015] In embodiments, a bend angle of the conduit, and/or the body thereof, is between about 60° and about 120°, including about 70°, 80°, 90°, 100°, and 110°. In an embodiment, the bend angle is about 90°.

[0016] In embodiments, a radius of curvature of the conduit, and/or the body thereof, is greater than about 1.5, including greater than about 2. In embodiments, the radius of curvature is between about 1.5 and about 3, including about 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, and 2.9.

[0017] In embodiments, the conduit, and/or the body thereof, is a pipe.

[0018] In an embodiment, the conduit is a modified ferrule bend.

[0019] In a second aspect, the invention provides a modified ferrule bend comprising a first connection end and a second connection end, wherein the second connection end of the modified ferrule bend is adapted for press fit engagement with a conduit.

[0020] In embodiments, the second connection end comprises a groove for accommodating a seal, such as an O-ring. In embodiments, the groove is adapted to accommodate an O-ring within, or adjacent to, the channel.

[0021] In a third aspect, the invention provides a modified ferrule bend comprising a first connection end and a second connection end, wherein the second connection end of the modified ferrule bend is adapted for engagement with a fitting for a conduit.

[0022] In said embodiments, the second connection may be adapted for threaded engagement with a nut of the fitting. The second connection end may additionally or alternatively be adapted to receive components of the fitting. The second connection end may comprise a chamber for receiving a seal and/or clamp of the fitting.

[0023] Suitably, the second connection end of the modified ferrule bend of the second or third aspect is substantially fixed with a body of the modified ferrule bend. Suitably, the modified ferrule bend of the second or third aspect is of unitary structure.

[0024] In embodiments, the first connection end of the modified ferrule bend of the second or third aspect is an unthreaded connection end. In said embodiments, the modified ferrule bend may be a conduit of the first aspect.

[0025] In alternative embodiments, the first connection end of the modified ferrule bend of the second or third aspect is a threaded connection end.

[0026] In a fourth aspect, there is provided a method of manufacturing a conduit, including the step of adding a first connection end and a second connection end to a substantially curved body such that a channel extends from the first connection end to the second connection end through the body, wherein the first connection end is an unthreaded connection end, and the second connection end is unthreaded or comprises thread on a circumferentially expanded rim thereof.

[0027] A related aspect provides a conduit manufactured according to the method of the fourth aspect. Said conduit may be the conduit of the first aspect.

[0028] In a fifth aspect, there is provided a method of manufacturing a modified ferrule bend, including the step of adding a connection end adapted for press fit engagement to a body of the modified ferrule bend.

[0029] A related aspect provides a modified ferrule bend manufactured according to the method of the fifth aspect. Said modified ferrule bend may be the modified ferrule bend of the second aspect.

[0030] In a sixth aspect, there is provided a method of manufacturing a modified ferrule bend, including the step of adding a connection end adapted for engagement with a fitting to a body of the modified ferrule bend.

[0031] A related aspect provides a modified ferrule bend manufactured according to the method of the sixth aspect. Said modified ferrule bend may be the modified ferrule bend of the third aspect.

[0032] In a seventh aspect there is provided a system comprising a conduit of the first aspect, or a modified ferrule bend of the second or third aspect; and a system conduit, wherein the system conduit is engaged with the second connection end of the conduit or the modified ferrule bend.

[0033] In an embodiment, the system comprises a further system conduit, wherein the further system conduit is engaged with the first connection end of the conduit of the first aspect or the modified ferrule bend of the second or third aspect.

[0034] Suitably, the system conduit of the system of the seventh aspect is a pipe.

[0035] In embodiments, the system comprises a conduit of the first aspect wherein the second connection end is adapted for press fit engagement, or a modified ferrule bend of the second aspect, wherein the second connection end of the conduit or modified ferrule bend is in press fit engagement with the system conduit. In some said embodiments, the system conduit is a metallic pipe.

[0036] In embodiments, the system comprises a conduit of the first aspect wherein the second connection end is adapted for engagement with a fitting, or a modified ferrule bend of the third aspect, wherein the second connection end of the conduit or modified ferrule bend is engaged with the system conduit via a fitting. In some said embodiments, the system conduit is a plastic pipe.

[0037] In embodiments wherein the system of the seventh aspect comprises a further system conduit engaged with the first connection end of the conduit of the first aspect or the modified ferrule bend of the second or third aspect, the further system conduit may be a ferrule cock.

[0038] An eighth aspect of the invention provides an assembly comprising a conduit of the first aspect wherein the second connection end is adapted for press fit engagement, or a modified ferrule bend of the second aspect; and a seal, such as an O-ring positioned within a groove for accommodating the seal in the second connection end of the conduit or modified ferrule bend.

[0039] A related aspect provides a kit comprising a conduit of the first aspect wherein the second connection end is adapted for press-fit engagement, or a modified ferrule bend of the second aspect; and a seal, such as an O-ring, for positioning within a groove for accommodating a seal in the second connection end of the conduit or modified ferrule bend.

[0040] A ninth aspect of the invention provides an assembly comprising a conduit of the first aspect wherein the second connection end is adapted for engagement with a fitting, or a modified ferrule bend of the third aspect; and a fitting engaged with the second connection end of the conduit or modified ferrule bend.

[0041] A related aspect provides a kit comprising a conduit of the first aspect wherein the second connection end is adapted for engagement with a fitting, or a modified ferrule bend of the third aspect; and a fitting for engagement with the second connection end of the conduit or modified ferrule bend.

[0042] A tenth aspect of the invention provides a method of installing a conduit of the first aspect or a modified ferrule bend of the second or third aspect, including the step of connecting the second connection end of the conduit or modified ferrule bend with a conduit.

[0043] In embodiments, the method of the tenth aspect includes the further step of connecting the first connection end of the conduit of the first aspect or the modified ferrule bend of the second or third aspect with a conduit.

[0044] In embodiments of the method of the tenth aspect, the second connection end of the conduit of the first aspect or of the modified ferrule bend of the second or third aspect, is connected with a conduit in the form of a pipe.

[0045] In embodiments of the tenth aspect, the conduit is a conduit of the first aspect wherein the second connection end is adapted for press fit engagement, or the modified ferrule bend is a modified ferrule bend of the second aspect, and the step of connecting the second connection end is a step of press fitting the second connection end with a pipe. In said embodiments, the second connection end may be press fitted with a conduit in the form of a metallic pipe.

[0046] In embodiments, the conduit is a conduit of the first aspect wherein the second connection end is adapted for engagement with a fitting, or the modified ferrule bend is a modified ferrule bend of the third aspect, and the step of engaging the second connection end is a step of connecting the second connection end with a pipe via a fitting. In said embodiments, the second connection end may be engaged with a plastic pipe via the fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The invention will be described hereinafter with reference to typical embodiments illustrated in the drawings, wherein:

[0048] Figure 1 sets forth an exploded view of an embodiment of an assembly of the invention, assembly 1, including an embodiment of a conduit of the invention, conduit 10.

[0049] Figure 2 sets forth a top view of the assembly of Figure 1, showing axis A-A'.

[0050] Figure 3 sets forth a sectional view of the assembly of Figure 1 through axis A-A'.

[0051] Figure 4 sets forth an exploded view of an embodiment of an assembly of the invention, assembly 2, including an embodiment of a conduit of the invention, conduit 20.

[0052] Figure 5 sets forth a top view of the assembly of Figure 4, showing axis A-A'.

[0053] Figure 6 sets forth a sectional view of the assembly of Figure 4, through axis A-A'. DETAILED DESCRIPTION

[0054] Set forth in the figures are respective embodiments of assemblies of the invention, assembly 1 and assembly 2, and respective conduits of the invention, conduit 10 and conduit 20.

[0055] As shown in Figures 1-3, assembly 1 comprises conduit 10; nut 1500; and elastomeric seal 1000. Elastomeric seal 1000 is in the form of an0-ring. Elastomeric seal is typically formed from plastic or rubber, or the like.

[0056] As shown in Figures 4-6, assembly 2 comprises conduit 20; nut 1500; and fitting 2000. Fitting 2000 comprises annular seal 2100; clamp ring 2200; and fitting nut 2300. Annular seal 2100 is an elastomeric annular seal. Annular seal 2100 is typically formed from plastic or rubber, or the like. Clamp ring 2200 is a semi-rigid clamp ring. Clamp ring 2200 is typically formed from plastic, or the like.

[0057] Looking at Figures 1-3, conduit 10 comprises channel 11; inner surface 12; outer surface 13; first connection end 14; body 15; and second connection end 16.

[0058] Conduit 10 is of unitary structure, with inner surface 12 and outer surface 13 extending across first connection end 14, body 15, and second connection end 16. Channel 11 of conduit 10 extends past inner surface 12, through first connection end 14; body 15; and second connection end 16.

[0059] First connection end 14 of conduit 10 is an unthreaded or non-threaded connection end. First connection end 14 comprises first connection end flange 141; first connection end rim 142; and first connection end aperture 143. First connection end rim 142 is inclined inwardly between first connection end flange 141 and first connection end aperture 143.

[0060] Body 15 of conduit 10 is a curved, substantially cylindrical pipe. Body 15 is curved as a gradual bend, with a bend angle of about 90°. Body 15 has a radius of curvature of about 2.

[0061] Second connection end 16 of conduit 10 is non-threaded connection end. Second connection end 16 comprises second connection end groove 161; and second connection end aperture 162. Second connection end groove 161 is formed from a diametrically expanded portion, located approximately at a longitudinal midpoint, of second connection end 16.

[0062] Looking at Figures 4-6, conduit 20 comprises channel 21; inner surface 22; outer surface 23; first connection end 24; body 25; and second connection end 26.

[0063] Conduit 20 is of unitary structure, with inner surface 22 and outer surface 23 extending across first connection end 24, body 25, and second connection end 26. Channel 21 of conduit 20 extends past inner surface 22, through first connection end 24; body 25; and second connection end 26.

[0064] First connection end 24 of conduit 20 is a non-threaded connection end. First connection end 24 comprises first connection end flange 241; first connection end rim 242; and first connection end aperture 243. First connection end rim 242 is inclined inwardly between first connection end flange 241 and first connection end aperture 243.

[0065] Body 25 of conduit 20 is a curved, substantially cylindrical pipe. Body 25 is curved as a gradual bend, with a bend angle of about 90°. Body 25 has a radius of curvature of about 2.

[0066] Second connection end 26 of conduit 20 is a threaded connection end. Second connection end 26 comprises second connection end chamber 261; second connection end rim 262; and second connection end aperture 263. Second connection end chamber 263 is in the form of an expanded section of channel 21. Second connection end rim 262 is a diametrically expanded, threaded rim surrounding second connection end aperture 263.

[0067] Typical use of conduit 10 and conduit 20 will now be described.

[0068] In use, conduit 10/20 facilitates connection of a residential or industrial property to a water supply.

[0069] In use, first connection end 14/24 of conduit 10/20 is engaged with a further conduit in the form of a ferrule cock, as are known in the art, of a water service connection.

[0070] First connection end 14/24 is engaged with a corresponding threaded connection of the ferrule cock via a nut, such as nut 1500. First connection end flange 141/241 facilitates engagement of the nut with first connection end 14/24 of conduit 10/20. A retainer, such as retaining ring 1501, may be fitted within a thread of the nut, to retain the nut against first connection end flange 141/241.

[0071] In use, second connection end 16/26 of conduit 10/20 is engaged with a further conduit in the form of a pipe to supply of water to a residential or industrial property.

[0072] Second connection end 16 of conduit 10 is engaged with a metal pipe. A seal, such as O-ring 1000, is placed within second connection end groove 162. The metal pipe is then forced within second connection end 16, resulting in fitting engagement, typically referred to as interference fit, friction fit, or press fit as will be understood by the skilled person, of the metal pipe with second connection end 16. O-ring 1000 assists with sealing of the press fit.

[0073] Second connection end 26 of conduit 20 is engaged with a plastic pipe via a fitting, such as fitting 2000. Annular seal 2100 and clamp ring 2200 of fitting 2000 are placed within second connection end chamber 261. An end of the plastic pipe is inserted through clamp ring 2200 and annular seal 2100 within second connection end chamber 261. Nut 2300 is threaded against second connection end rim 262, securing the plastic pipe with second connection end 26 via fitting 2000.

[0074] Advantageously, conduits of the invention, such as conduit 10 and conduit , facilitate secure, substantially sealed connection with pipes, without the need for adapters as are required for standard ferrule bends.

[0075] As set out herein, second connection end 16 of conduit 10 is adapted for press fit connection with suitable pipes, typically metallic pipes. This offers considerable advantages in terms of convenience and efficiency of installation, as compared to standard ferrule bends wherein an adapter must be added to an end corresponding to second connection end 16, to allow for press fit connection.

[0076] As set out herein, second connection end 26 of conduit 20 is adapted to receive a fitting for connection with plastic pipes. This offers considerable advantages in terms of convenience and efficiency of installation, as compared to existing ferrule bends wherein an adapter must be added to an end corresponding to second connection end 16, to allow for a fitting for a plastic pipe to be received.

[0077] The skilled person will readily appreciate that a range of materials can be suitable for construction of conduit 10/20. Typically, conduit 10/20 is primarily formed from dezincification-resistant brass (DZR brass). However, without limitation, other metallic materials, such as bronze, copper, cast iron, ductile iron, stainless steel and other steel types, and metal alloys, and plastics such as PVC and CPVC may be suitable for construction of conduit 10/20.

[0078] Although conduit 10/20 as described herein has particular application for supplying water from a service connection to residential or industrial properties, it will be readily appreciated that a range of other applications are possible. By way of non limiting example, conduit 10/20 may also be beneficial to conveniently connect fluid flow in industrial production settings (such as during chemical production), and during waste water processing.

[0079] As described herein, conduit 10 is particularly adapted for press fit connection with metallic pipes. Typical metallic pipes for press fit connection include pipes comprising stainless steel, although without limitation thereto. Press fit connection may alternatively be achieved with other metallic pipes, such as those comprising other steel types, DZR brass, bronze, copper, cast iron, ductile iron, or metal alloys.

[0080] As described herein, conduit 20 is particularly adapted for connection via fitting to plastic pipes. Typical plastic pipes for connection via fitting comprise PVC, although limitation thereto. Connection via fitting may alternatively be achieved with other plastic pipes, such as polypropylene, polyethylene, and polybutylene -based plastic pipes. The form of a fitting corresponding to fitting 2000 can be adjusted, as desirable, in various ways that will be readily apparent to the skilled person (e.g. with regard to components included, and the size, shape, and materials thereof), such as to be adapted for connection with particular plastic pipes.

[0081] As described herein, first connection end 14/24 is an unthreaded connection end. First connection end 14/24 is adapted to engage with a threaded fastener, such as nut 1500, with flange 141/241 facilitating the engagement. It will be appreciated however that, in some alternative embodiments, a threaded first connection end may be used. It will be further appreciated that, in some alternative embodiments, a first connection end adapted for engagement with a non-threaded fastener may be used.

[0082] In this specification, terms such as "above" and "below"; "front" and "back"; "top" and "bottom"; "leff'and "right"; horizontalf' and "vertical", and the like, may be used for descriptive purposes. However, it will be understood that the embodiments can potentially be arranged in various orientations, and that such relative terms are not limiting and may be interchangeable in appropriate circumstances.

[0083] In this specification, unless the context requires otherwise, the terms "connection", "connected', "connecting", and the like, are not to be read as limited to direct connections, and may also include indirect connections. For example, unless the context requires otherwise, a stated first component "connected' to a stated second component may be connected via, through, or by, one or more unstated components.

[0084] It will be appreciated that the indefinite articles "a" and "an" are not to be read as singular indefinite articles or as otherwise excluding more than one or more than a single subject to which the indefinite article refers. For example, "a" pipe includes one pipe, one or more pipes or a plurality of pipes.

[0085] In this specification, the terms "comprises", "comprising", "includes", "including", and similar terms are intended to mean a non-exclusive inclusion, such that an apparatus, system, or method that comprises a list of elements does not include those elements solely, but may well include other elements not listed.

[0086] The above description of embodiments of the invention is provided for purposes of description to one of ordinary skill in the related art. It is not intended to be exhaustive or to limit the invention to a single disclosed embodiment. In some instances, well-known components and/or processes have not been described in detail, so as not to obscure the embodiments described herein.

[0087] As described, numerous alternatives and variations to the present invention will be apparent to those skilled in the art of the above teaching. Accordingly, while some alternative embodiments have been discussed specifically, other embodiments will be apparent or relatively easily developed by those of ordinary skill in the art. The invention is intended to embrace all alternatives, modifications, and variations of the present invention that have been discussed herein, and other embodiments that fall within the spirit and scope of the above described invention.

Claims (20)

1. A conduit of unitary structure comprising: a first connection end; a second connection end; a substantially curved body located between the first connection end and the second connection end; and a channel extending from the first connection end to the second connection end through the body, wherein the first connection end is an unthreaded connection end, and the second connection end is unthreaded or comprises thread on a circumferentially expanded rim thereof.

2. The conduit of claim 1, wherein the first connection end comprises a flange for engagement with a nut.

3. The conduit of claim 1 or claim 2, wherein the second connection end is unthreaded, and adapted for press-fit engagement with a metallic pipe.

4. The conduit of claim 3, wherein the second connection end comprises a groove for accommodating an O-ring.

5. The conduit of claim 1 or claim 2, wherein the second connection end comprises thread on a circumferentially expanded rim thereof, and is adapted for engagement with a fitting for a plastic pipe.

6. The conduit of claim 5, wherein the second connection end is adapted for threaded engagement with a nut of the fitting.

7. The conduit of claim 5 or claim 6, wherein the second connection end comprises a chamber for receiving a seal and/or clamp of the fitting.

8. The conduit of any preceding claim, wherein a bend angle of the body is about 900.

9. The conduit of any preceding claim, wherein a radius of curvature of the body is about 2.

10. A modified ferrule bend of unitary structure, comprising a first connection end and a second connection end, wherein the second connection end of the modified ferrule bend is adapted for press fit engagement with a metallic pipe.

11. A modified ferrule bend of unitary structure, comprising a first connection end and a second connection end, wherein the second connection end of the modified ferrule bend is adapted for engagement with a fitting for a plastic pipe.

12. A method of manufacturing a conduit of unitary structure, including the step of forming a first connection end and a second connection end fixed to a substantially curved body, wherein a channel extends from the first connection end to the second connection end through the body, and wherein the first connection end is an unthreaded connection end, and the second connection end is unthreaded or comprises thread on a circumferentially expanded rim thereof.

13. A system comprising the conduit of any one of claims 1-9 or the modified ferrule bend of claim 10 or claim 11; and a pipe, wherein the pipe is connected with the second connection end of the conduit or the modified ferrule bend.

14. The system of claim 13, wherein the pipe is a metallic pipe in press fit engagement with the second connection end of the conduit or the modified ferrule bend.

15. The system of claim 13, wherein the pipe is a plastic pipe engaged with the second connection end of the conduit of the modified ferrule bend via a fitting.

16. The system of any one of claims 13-15, comprising a ferrule cock connected with the first connection end of the conduit or the modified ferrule bend.

17. A method of installing the conduit of any one of claims 1-9 or the modified ferrule bend of claim 10 or claim 11, including the step of connecting the second connection end of the conduit or the modified ferrule bend with a pipe.

18. The method of claim 17, including the step of connecting the first connection end of the conduit or the modified ferrule bend with a ferrule cock.

19. The method of claim 17 or claim 18, wherein the step of connecting the second connection end is a step of press fitting the second connection end with a metallic pipe.

20. The method of claim 17 or claim 18, wherein the step of connecting the second connection end is a step of engaging the second connection end with a plastic pipe via a fitting.

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