EP2252523A2 - Spout for flexible fluid reservoir - Google Patents
Spout for flexible fluid reservoirInfo
- Publication number
- EP2252523A2 EP2252523A2 EP09703589A EP09703589A EP2252523A2 EP 2252523 A2 EP2252523 A2 EP 2252523A2 EP 09703589 A EP09703589 A EP 09703589A EP 09703589 A EP09703589 A EP 09703589A EP 2252523 A2 EP2252523 A2 EP 2252523A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spout
- weld interface
- film
- neck portion
- generally flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/133—Fin-type joints, the parts to be joined being flexible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/234—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being in the form of tessellations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/343—Making tension-free or wrinkle-free joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
- B29C66/53261—Enclosing tubular articles between substantially flat elements
- B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
- B29C66/53263—Enclosing spouts between the walls of bags, e.g. of medical bags said spouts comprising wings, e.g. said spouts being of ship-like or canoe-like form to avoid leaks in the corners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
- B29C66/73116—Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/342—Preventing air-inclusions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0625—LLDPE, i.e. linear low density polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/065—HDPE, i.e. high density polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0082—Flexural strength; Flexion stiffness
Definitions
- spout rib geometries of the prior art generally produced excessive pressure at the weld interface, causing the material of the film subject to bonding with the spout to be displaced rather than bond with adjacent material on the spout rib. As this material was displaced, the remaining film at this location was considerably weakened, making it particularly subject to tearing.
- prior art spouts often included a spout geometry that resulted in stress concentration at the spout corners (in most forms, the spout corners are considered those locations where the two generally opposing side surfaces of the spout's weld interface converge) when the reservoir was filled to near capacity.
- This intrinsic stress was greatly amplified when the reservoir was subjected to additional loads such as those experienced during "drop-testing".
- conventional spout geometries, particularly in conjunction with stiff material selection created high stress and abrasion of the film where it wrapped around the internal edge of the spout. This could result in premature failure of the film in this area.
- the melt temperature of the spout base material such as high density polyethylene (HDPE)
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- the invention is intended to provide a spout, particularly for flexible fluid reservoirs comprising opposing film panels such as the type broadly characterized as personal hydration reservoirs, which minimizes stresses and abrasion resulting from manufacture and/or use of such reservoirs as well as enhances the strength of the weld/bond between the films and the spout.
- the various invention embodiments minimize stresses to and abrasion of the film(s) comprising such reservoirs by exploiting certain spout geometries, and enhances the strength of the weld/bond between the films and the spout through material selection and spout surface characteristics, the details of which will be disclosed in the following paragraphs.
- Each spout according to the invention comprises a generally cylindrical neck portion and a pair of opposed, generally triangular portions extending laterally there from that comprise a spout-film interface (also referred to herein as a "spout weld interface").
- the neck portion includes an axis that is congruent with a longitudinal direction.
- the spout weld interface(s) may comprise one or more portions of the neck portion.
- the terms "area”, “boundary”, “part”, “portion”, “surface”, “zone”, and their synonyms, equivalents and plural forms, as may be used herein and by way of example, are intended to provide descriptive references or landmarks with respect to the article and/or process being described.
- Certain spout embodiments of the invention comprise at least one material having a melting temperature, at least at spout weld interfaces thereof, which is closely matched to at least a portion of film-spout interfaces that that are part of a flexible fluid reservoir film (also referred to herein as "film weld interface(s)").
- film weld interface(s) By closely matching the melt temperatures of the contacting materials at the film/spout weld interfaces, preferably at least within 5°C and most preferably within 2 0 C, undesirable material displacement at the weld interfaces can be eliminated (presuming substantially homogeneous material temperatures).
- the film weld interfaces which is usually, but not always, an inner surface of the film at such interface, comprises a material, preferably a LLDPE, that has a melting temperature closely matched to the melting temperature of the material at the spout weld interface, which is usually, but not always, an outer surface of the spout, which is also preferably a LLDPE.
- a convenient means for matching melting temperature requirements is thereby provided.
- pre-welded or exposed spout and/or film weld interface material may not be the primary or ultimate bonding media, but may be removed or overcome during the bonding process (as in the case of a volatile coating that is flashed or becomes a flux during bonding operations).
- the pre-bonded spout and/or film weld interfaces comprise the closely matched melting temperature materials that form a suitable bond during a bonding or welding process comprising the application of heat and/or radio frequency (RF) energy.
- RF radio frequency
- Spout embodiments of the invention also may provide for enhanced spout weld interface surface and sectional characteristics as well as geometries.
- the surface characteristics comprise substantially flat and/or smooth surfaces, which permit uniform and/or lower material compression pressure to be used during welding, when compared to the prior art.
- sectional thickness differences in adjacent portions of the spout weld interfaces e.g., no substantial ridges, lands, protrusions or similar positive relief features reside on at least a substantial portion of the spout weld interfaces, displacement/extrusion of film weld interface material(s) is thus greatly minimized.
- film thickness and integrity at and proximate to the film weld interface can be maintained during and after the bonding process.
- Certain embodiments of the immediately preceding type may also comprise negative relief surface features such as holes or depressions defined by the spout weld interface surfaces.
- negative relief surface features such as depressions or holes beneficially permit air entrapped between film and spout weld interfaces during boding to escape or not adversely affect the desired weld, thus enhancing the film-to-spout bond.
- surface features also may accept displaced film/spout material, further enhancing the nature of the bond there between.
- spouts having weld interfaces comprising lands and grooves are not equivalent to weld interfaces comprising a generally smooth surface (no positive relief features) but also defining negative relief features, which may include linear negative reliefs.
- the peaks of the lands do not constitute a "surface” within the meaning of this patent; "surface” as used herein denotes the nominal surface of the material.
- negative surface features of the various invention embodiments are generally limited by the sectional thickness of the spout weld interface; positive relief features have no equivalent limitation.
- spout embodiments of the invention also may comprise at least one stress delocalizing feature ("SDF"), which is particularly useful when spouts according to the invention are used with flexible fluid reservoirs having opposing film panels at the spout weld interface.
- SDF stress delocalizing feature
- displacement of reservoir panels at the spout weld interfaces causes the localization of stress along the free edge of the interfaces. This stress localization is often a precursor condition to failure of the weld/bond at the spout/panel weld interfaces.
- stresses otherwise directed to the interfaces are distributed over a wider area (of both the spout and the panels), thereby reducing the likelihood of failure at the interfaces.
- One form of SDF comprises flexible appendages, preferably at the convergence of opposing sides of a spout (the apex of the triangular portions) or at neck portions that form a portion of the spout weld interfaces, which depend beyond the spout weld interface and into the reservoir.
- These flexible appendages are functionally hinged to the spout weld interfaces such that upon divergent flexing of the opposing film panels, resulting "peeling" forces from the panels to the spout are also imparted to the SDF, thereby reducing the imparted forces to the panels.
- the geometry of the SDFs is such that a weld between the spout and the panel experiences reduced peel stress in favor of shear stress.
- SDFs generally directed to the spout itself, which is considerably stronger than the film.
- SDFs according to several invention embodiments do not have a constant longitudinal profile, nor necessarily a linear edge.
- Selected embodiments of the invention may also therefore include spout edges and/or portions of the spout weld interfaces that are flexible in comparison to the neck portion of the spout.
- Such an arrangement significantly reduce stress and abrasion of the film panels in this area by permitting portions of the spout to flex in response to flexing of the film panels, as opposed to localizing stresses at the spout weld interface periphery. This flexing ability also constitutes a form of an SDF.
- Fig. 1 is a perspective view of a first embodiment of the invention shown welded to a flexible fluid container;
- Fig. 2 is a side elevation view of the first embodiment of the invention with alternative weld interface treatments, the left side illustrating a spout weld interface comprising a plurality of negative relief elements and the right side illustrating a spout weld interface comprising a plurality of holes;
- Fig. 3A is a cross section taken substantially along the lines 3A — 3A in Fig. 2;
- Fig. 3B is a cross section taken substantially along the lines 3B — 3B in Fig. 2;
- Fig. 4 is an end elevation view of the first embodiment
- Fig. 5 is a perspective view of a second embodiment of the invention.
- Fig. 6 is a side elevation of the second embodiment
- Fig. 7 is an end elevation view of the second embodiment.
- Fig. 8 is a bottom plan view of the second embodiment. DESCRIPTION OF INVENTION EMBODIMENTS
- spout 10 includes neck portion 20 having external threads 26 formed on outer surface 24 thereof.
- Neck portion 20 further includes portions 28 that comprise part of spout weld interfaces 30.
- Spout weld interfaces 30 generally include extensions 32a and 32b, each having spout weld interface surfaces 34a and 34b. These surfaces, in conjunction with neck portions 28, form the entirety of the surface that is bonded or welded to opposing film panels 82a and 82b of reservoir 80.
- Each extension 32 further includes peripheral edges 36 and converging edge 38. It should be noted that peripheral edges 36 and adjacent portions of spout weld interfaces 30 are somewhat flexible in that they are able to converge and diverge relative to each other; this is a result of not having any spanning or structural element restricting such movement.
- spout weld interface surfaces 34a and 34b illustrate several forms in which these surfaces may exist.
- spout weld interface surfaces 34a and 34b may also comprise negative relief features 40 such as a plurality of dimples 42 or holes 44.
- negative relief features provide a means for beneficially mitigating the effects of gas(es) trapped between opposing film panels 82a and 82b of reservoir 80 and spout weld interface surfaces 34a and 34b during the welding/bonding process and/or providing a location for material displacement resulting from such process.
- the embodiment shown in Figs. 1-4 further comprises flexible appendages 50, each having extending body portion 52, which is linked to extensions 32 via hinge element 54, and curvilinear periphery 56.
- Opposing film panels 82a and 82b of reservoir 80 may or may not be bonded to appendages 50; in either instance, if hydrostatic pressure within reservoir 80 causes opposing film panels 82a and 82b to diverge, then extending body portions 52 will pivot about hinge elements 54 and maintain contact with the panels.
- a second embodiment of the invention is shown that is substantially similar to the first illustrated embodiment, except that flexible appendages 50' are positioned proximate to portions 28 of neck portion 20. Because flexible appendages 50 or 50' are intended to function as SDFs 1 greatest benefit there from can be achieved with such appendages are positioned at or adjacent to portions of spout weld interfaces 30 that are less flexible than other portions thereof. In many instances, the least flexible portions of spout weld interfaces are at converging edges 38 or portions 28. In this second embodiment, flexible appendages 50" are positioned at or adjacent to portions 28 (in the first embodiment, flexible appendages 50 were positioned at or adjacent to edges 38). Burst test data have shown that similar stress derealization occurs in the second embodiment when compared to the first. In most other respects, the two embodiments are similar.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Bag Frames (AREA)
- Closures For Containers (AREA)
- Tubes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1196308P | 2008-01-22 | 2008-01-22 | |
PCT/US2009/000481 WO2009094215A2 (en) | 2008-01-22 | 2009-01-22 | Spout for flexible fluid reservoir |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2252523A2 true EP2252523A2 (en) | 2010-11-24 |
EP2252523A4 EP2252523A4 (en) | 2012-03-07 |
Family
ID=40901588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09703589A Withdrawn EP2252523A4 (en) | 2008-01-22 | 2009-01-22 | Spout for flexible fluid reservoir |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110062192A1 (en) |
EP (1) | EP2252523A4 (en) |
JP (1) | JP2011509897A (en) |
CA (1) | CA2712761A1 (en) |
WO (1) | WO2009094215A2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202011001356U1 (en) | 2011-01-11 | 2012-04-12 | Pöppelmann Holding GmbH & Co. KG | Pourer and container with such |
WO2013074953A1 (en) * | 2011-11-16 | 2013-05-23 | Meadwestvaco Calmar, Inc. | Canoe fitments for pouches |
JP6163991B2 (en) * | 2013-09-17 | 2017-07-19 | セイコーエプソン株式会社 | Liquid container and liquid container |
US9481495B2 (en) * | 2014-04-24 | 2016-11-01 | Scholle Ipn Corporation | Dispensing system |
AU2015289669B2 (en) * | 2014-07-16 | 2019-06-06 | Dow Global Technologies Llc | Flexible container with fitment and process for producing same |
WO2016151519A1 (en) * | 2015-03-25 | 2016-09-29 | Ready To Feed Pty Ltd | Discharge spout for a container and a container incorporating such discharge spout |
DE102015215864A1 (en) | 2015-08-20 | 2017-02-23 | Robert Bosch Gmbh | Outlet with a projecting flange |
US10173821B2 (en) | 2016-09-26 | 2019-01-08 | Dow Global Technologies Llc | Flexible fitment for flexible container |
US10155615B2 (en) | 2016-09-26 | 2018-12-18 | Dow Global Technologies Llc | Seal bar and process for using same |
ES2731698A1 (en) * | 2018-05-18 | 2019-11-18 | Georg Menshen Gmbh & Co Kg | Socket with a welding area (Machine-translation by Google Translate, not legally binding) |
ES2731935A1 (en) * | 2018-05-18 | 2019-11-19 | Georg Menshen Gmbh & Co Kg | Welding of an intake nozzle (Machine-translation by Google Translate, not legally binding) |
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- 2009-01-22 JP JP2010544355A patent/JP2011509897A/en active Pending
- 2009-01-22 WO PCT/US2009/000481 patent/WO2009094215A2/en active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
EP2252523A4 (en) | 2012-03-07 |
WO2009094215A3 (en) | 2010-01-14 |
US20110062192A1 (en) | 2011-03-17 |
CA2712761A1 (en) | 2009-07-30 |
JP2011509897A (en) | 2011-03-31 |
WO2009094215A2 (en) | 2009-07-30 |
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