WO1993001107A1 - Dispositif de conditionnement gonflable - Google Patents

Dispositif de conditionnement gonflable Download PDF

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Publication number
WO1993001107A1
WO1993001107A1 PCT/CA1992/000289 CA9200289W WO9301107A1 WO 1993001107 A1 WO1993001107 A1 WO 1993001107A1 CA 9200289 W CA9200289 W CA 9200289W WO 9301107 A1 WO9301107 A1 WO 9301107A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
primary duct
package
inflatable package
inflatable
Prior art date
Application number
PCT/CA1992/000289
Other languages
English (en)
Inventor
Geoffrey Boyer
Original Assignee
Geoffrey Boyer
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geoffrey Boyer filed Critical Geoffrey Boyer
Priority to EP92914075A priority Critical patent/EP0592514A1/fr
Priority to JP5501865A priority patent/JPH07503215A/ja
Publication of WO1993001107A1 publication Critical patent/WO1993001107A1/fr

Links

Classifications

    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films

Definitions

  • the present invention relates to an inflatable package and more particularly to a self-sealing, fluid inflatable package for use as a hot/cold pack or for the packing of fragile objects for shipment.
  • the invention further relates to a one-way multiple valve construction having self-sealing properties.
  • the present invention relates to a plastic self-sealing package that can be easily filled with either air or liquid to function as either a hot/cold pack or as a packing medium.
  • the present invention relates to a one-way self-sealing valve that operates between the package and the exterior environment as well as between a continuous row of interconnected chambers.
  • the present invention relates to a process for manufacturing the self-sealing package and the various other related embodiments of this invention. These various forms allow for the sack to be produced for the least possible cost per linear foot while still maintaining adequate structural integrity to the complete system.
  • an inflatable package comprising outer deformable walls defining at least one fluid-tight chamber therebetween, valve means disposed within said chamber, and in fluid communication therewith, said valve means permitting the ingress of fluid into said chamber, and preventing the egress of said fluid therefrom, said valve means including a primary duct and at least one flow channel intersecting said primary duct at an angle to place said primary duct in fluid communication with the interior of said chamber.
  • Figure 1 is a perspective view of a multiple chamber inflatable package in accordance with the invention
  • Figure 2 is a side elevational view of a one-way multiple valve assembly forming part of the package of Figure 1;
  • FIG. 3 is a perspective, partially sectional view of the valve of Figure 2 in an internally pressurized condition
  • Figure 4 is a perspective, partially sectional view of a modification to the valve of Figure 3;
  • Figure 5 is a perspective view of a further modification to the valve of Figure 2; and Figure 6 is an elevational view of a further modification to the valve of Figure 2.
  • the present inflatable package 1 comprises two major components, namely a deformable enclosure defined by outer walls 10 and a multiple one-way valve assembly 25 which permits the ingress of fluid into discreet pouches or chambers formed between walls 10 and which also acts to prevent the egress of that fluid once the chambers are inflated to the degree required.
  • Walls 10 may consist of opposed, typically rectangular layers of pliable plastic film 11 heat sealed or glued at their peripheral edges 9 to form a strong fluid-tight bond therebetween.
  • the walls are similarly bonded together at seams 12 to sub-divide the package into discreet fluid- tight chambers or pouches 13, each aligned orthogonally to the longitudinal axis of the package.
  • films 11 may be printed with release varnish in the areas representing chambers 13 so that the films can simply be fed between opposed heat rollers to cause the sealing together of only the unvarnished areas of the films.
  • valve assembly 25 Prior to the heat sealing of the walls, valve assembly 25 is placed between the opposed layers of film 11. As shown in Figures 3 and 4, valve 25 consists of two opposed strips of pliable plastic film 26 and 27 sealed together along upper peripheral edge 28 and internally as indicated by lines 30 to define an infinitely repeated inverted U- shaped pattern.
  • the seals which are fluid-tight, define a continuous longitudinally extending primary fluid duct or main artery 32 and a series of parallel, spaced apart, transversely extending flow channels 33, each of which is in fluid communication at its upstream end 34 with primary fluid duct 32 and at its downstream end 35 with the interior of a respective one of chambers 13.
  • channels 33 intersect duct 32 at a 90° angle.
  • Webs 37 formed between adjacent flow channels 33 are sealed along each of their adjoining edges with flow channels 32 and 33.
  • the webs are also sealed along their lower edges 39 to prevent the ingress of fluid between strips 26 and 27 and are additionally reinforced by an "X" shaped seal 41 made therein. Sealing of the valve in the manner described above is easily accomplished by an impulse die which descends onto films 26 and 27 to apply enough heat to the edges and seams in question to permanently seal the two films together to form the pattern of ducts as described hereinabove.
  • strips 26 and 27 may be printed with release varnish and heat rollered to form the required end product.
  • strips 26 and 27 may comprise a single sheet of material folded over onto itself with upper edge 28 defining the fold line, a more reliably fluid-tight seal has been found to be formed if strips 26 or 27 are sufficiently wide to provide an overhang 43 (Figure 4) at least at the upper but preferably at both the upper and lower edges of the valve.
  • overhang 43 Figure 4
  • the rounding of the seams at the intersections of ducts 32 and 33 as shown most clearly in Figure 4 appears to reduce material fatigue when the valve is under pressure.
  • valve 25 After valve 25 has been interlayered between films 11, the heat sealing together of the outer walls 10 can take place.
  • the varnish can be applied of course only to those parts of the duct intersecting with seams 12, but this would require that the valve be properly aligned with the seams prior to the application of heat.
  • ducts 32 and 33 and webs 37 are surrounded by a pattern of thickened seals 82 with the downstream ends of ducts 33 extending beyond (or below) the seals closing off the lower ends of the webs.
  • fluid introduced under pressure at an upstream end 70 of primary duct 32 "inflates" the duct as the fluid travels downstream in the direction of Arrow A towards the next adjacent seam 12.
  • the release varnish has prevented duct 32 from being sealed completely closed at the intersection 54, nevertheless, it requires a pressure buildup to "pop" the intersection and before this occurs, the fluid will enter flow channels 33 as indicated by Arrow B, flowing therethrough into chamber 13 as indicated by Arrow C. The fluid will then completely fill chamber 13 until the pressure buildup in the chamber and the pressure required to pop the seal at intersection 34 equalizes. When this occurs, the intersection will pop and fluid will flow downstream into the next adjacent chamber via duct 32 and channels 33 opening thereinto. This continues until as many chambers as are needed or required are filled. The filled portion of the package may then be detached along perforated lines 65 formed in seams 12 for this purpose. Alternatively, a cut using scissors or a sharpened edge can be made along the seam.
  • additional release varnish or other seal preventing media is applied to the internal surfaces of duct 32 to prevent or at least minimize any closure of the duct at intersections 54. Fluid introduced at upstream end 70 will then travel the length of duct 32 without significant restriction.
  • the intersection 54 immediately downstream of the last chamber to be filled is pinched off or held closed either manually or automatically by an apparatus (not shown) dispensing the uninflated packaging from a roll thereof.
  • the last chamber will be the first to fill with successive upstream chambers filling in order thereafter.
  • one or more ducts 33 may open thereinto.
  • the pressure in ducts 32 and 33 drops to atmospheric. This causes the ducts to physically collapse into a substantially flat condition under the pressure of the fluid in chambers 13 so that the walls of the ducts are actually compressed together in a suffocation effect to prevent the egress of fluid from the chambers.
  • valve 25 is formed by sealing a single strip of plastic film 60 directly to the inner surface of one of films 11.
  • this embodiment is the same as that described above with reference to Figures 1 to 4. This construction not only reduces the amount of plastic film needed to construct the valve, but results in a significant reduction in the stress to which the valve is subject when under inflation.
  • the material used for valve 25 is low slip (i.e. high coefficient of friction) 1.5 mil polyethylene/EVA or EVOH film which increases the suffocation effect for one-way fluid flow when ducts 32 and 33 collapse under pressure of the fluid in chambers 13.
  • Outer skin 10 may also be a polyethylene film or nylon polyethylene laminated film or tri-extruded polyethylene nylon polyethylene film or polyurethane film of varying thicknesses depending upon anticipated loads.
  • a tri-extrud ⁇ d film of LDPE/HDPE/EVA resin may also be used in view c this material's high tensile strength, minimal tear propagation and reasonable cost relative to competitive plastic film products presently on the market.
  • Outer walls 10 may be clear or opaque and may be printable for logos, trade-marks and the like.
  • Chambers 13 can be filled with air for packing or insulating purposes. Water can be used for freezing the package into ice packs.
  • Other fluids than can be used include commercially available gels useful for either cooling or heating purposes. As many chambers as are needed can be torn off to form a pack as large or as small as may be required. The package can be reused or disposed of when done with.
  • a strip made into a closed loop if desired can be used for wrapping a television, computer or a similarly fragile commodity and then inflated, or inflated prior to packing. This will at once conform the shape of the strip to the merchandise being wrapped and will cause the package to constrictively engage the merchandise to prevent slipping.
  • Linear strips can be used for stuffing between the package walls and the enclosed goods.
  • Pouches or pockets can be formed for enclosing smaller goods. The packing will not of course settle and even if the odd chamber is punctured, this will not result in leakage from adjoining chambers and product integrity will be substantially maintained.

Abstract

L'invention décrit un dispositif amélioré de conditionnement gonflable, comprenant des parois extérieures déformables (10) définissant au moins une chambre étanche au fluide (13) entre lesdites parois, ainsi qu'un clapet anti-retour (25) situé à l'intérieur de la chambre, afin d'établir une communication fluide avec ladite chambre; le clapet permet la pénétration du fluide dans la chambre et en empêche la sortie; ledit clapet comprend une conduite primaire (32) et au moins un passage d'écoulement (33) venant en intersection angulairement avec ladite conduite primaire, afin de la mettre en communication fluide avec l'intérieur de la chambre.
PCT/CA1992/000289 1991-07-05 1992-06-30 Dispositif de conditionnement gonflable WO1993001107A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP92914075A EP0592514A1 (fr) 1991-07-05 1992-06-30 Dispositif de conditionnement gonflable
JP5501865A JPH07503215A (ja) 1991-07-05 1992-06-30 膨張可能パッケージ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,046,418 1991-07-05
CA 2046418 CA2046418A1 (fr) 1991-07-05 1991-07-05 Glaciere

Publications (1)

Publication Number Publication Date
WO1993001107A1 true WO1993001107A1 (fr) 1993-01-21

Family

ID=4147961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1992/000289 WO1993001107A1 (fr) 1991-07-05 1992-06-30 Dispositif de conditionnement gonflable

Country Status (5)

Country Link
EP (1) EP0592514A1 (fr)
JP (1) JPH07503215A (fr)
AU (1) AU3220093A (fr)
CA (1) CA2046418A1 (fr)
WO (1) WO1993001107A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353459A (en) * 1993-09-01 1994-10-11 Nike, Inc. Method for inflating a bladder
EP0679588A1 (fr) * 1993-11-05 1995-11-02 Shinwa Corporation Gonfleur pour enveloppe a gaz a compartiments a gaz independants successifs
EP1254049A1 (fr) * 2000-01-20 2002-11-06 Free-Flow Packaging International, Inc. Systeme, procede et materiau destines a la fabrication de coussins d'emballage a remplissage pneumatique
EP2399838A1 (fr) * 2010-06-25 2011-12-28 Sugiyama-Gen Co., Ltd. Emballage de sac pour conditionnement secondaire configuré pour transporter les substances infectieuses

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067530A5 (fr) * 1969-11-06 1971-08-20 Normos Norbert
US3904107A (en) * 1972-07-31 1975-09-09 Toyo Soda Mfg Co Ltd Synthetic resin film bag having valve for preventing free leakage
FR2291114A2 (fr) * 1974-11-12 1976-06-11 Normos Norbert Element de calage integre
EP0255780A2 (fr) * 1986-07-30 1988-02-10 Johnsen & Jorgensen Jaypak Limited Poche spéciale
WO1991000834A1 (fr) * 1989-07-11 1991-01-24 Rolf Becker Sachet gonflable en feuilles plastiques, en particulier a des fins d'emballage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067530A5 (fr) * 1969-11-06 1971-08-20 Normos Norbert
US3904107A (en) * 1972-07-31 1975-09-09 Toyo Soda Mfg Co Ltd Synthetic resin film bag having valve for preventing free leakage
FR2291114A2 (fr) * 1974-11-12 1976-06-11 Normos Norbert Element de calage integre
EP0255780A2 (fr) * 1986-07-30 1988-02-10 Johnsen & Jorgensen Jaypak Limited Poche spéciale
WO1991000834A1 (fr) * 1989-07-11 1991-01-24 Rolf Becker Sachet gonflable en feuilles plastiques, en particulier a des fins d'emballage

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353459A (en) * 1993-09-01 1994-10-11 Nike, Inc. Method for inflating a bladder
EP0679588A1 (fr) * 1993-11-05 1995-11-02 Shinwa Corporation Gonfleur pour enveloppe a gaz a compartiments a gaz independants successifs
EP0679588A4 (fr) * 1993-11-05 1996-04-03 Shinwa Corp Gonfleur pour enveloppe a gaz a compartiments a gaz independants successifs.
US5581983A (en) * 1993-11-05 1996-12-10 Shinwa Corporation Gas injection device for gas bag having serial closed cells
EP1254049A1 (fr) * 2000-01-20 2002-11-06 Free-Flow Packaging International, Inc. Systeme, procede et materiau destines a la fabrication de coussins d'emballage a remplissage pneumatique
EP1254049A4 (fr) * 2000-01-20 2006-10-25 Free Flow Packaging Int Inc Systeme, procede et materiau destines a la fabrication de coussins d'emballage a remplissage pneumatique
US7325377B2 (en) 2000-01-20 2008-02-05 Free-Flow Packaging International, Inc. Apparatus for making pneumatically filled packing cushions
US7526904B2 (en) 2000-01-20 2009-05-05 Free-Flow Packaging International, Inc. Apparatus for making pneumatically filled packing cushions
US8776483B2 (en) 2000-01-20 2014-07-15 Free-Flow Packaging International, Inc. System for making pneumatically filled packing cushions
EP2399838A1 (fr) * 2010-06-25 2011-12-28 Sugiyama-Gen Co., Ltd. Emballage de sac pour conditionnement secondaire configuré pour transporter les substances infectieuses

Also Published As

Publication number Publication date
AU3220093A (en) 1993-02-11
JPH07503215A (ja) 1995-04-06
CA2046418A1 (fr) 1993-01-06
EP0592514A1 (fr) 1994-04-20

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