WO2009089019A1 - Emballage refermable amélioré pour ouverture par pincement - Google Patents

Emballage refermable amélioré pour ouverture par pincement Download PDF

Info

Publication number
WO2009089019A1
WO2009089019A1 PCT/US2009/000091 US2009000091W WO2009089019A1 WO 2009089019 A1 WO2009089019 A1 WO 2009089019A1 US 2009000091 W US2009000091 W US 2009000091W WO 2009089019 A1 WO2009089019 A1 WO 2009089019A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
package
package body
recloseable
assembly
Prior art date
Application number
PCT/US2009/000091
Other languages
English (en)
Inventor
James W. Yeager
Original Assignee
Innoflex Incorporated
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 Innoflex Incorporated filed Critical Innoflex Incorporated
Priority to US12/811,988 priority Critical patent/US20100290719A1/en
Publication of WO2009089019A1 publication Critical patent/WO2009089019A1/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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8131—Making bags having interengaging closure elements
    • 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
    • B65D2313/00—Connecting or fastening means
    • B65D2313/02—Connecting or fastening means of hook-and-loop type

Definitions

  • the present invention relates to packages that can be pinch-grip opened, that is, the end seal of the package can be broken open by pulling the front and rear panels of the package apart. More particularly the present invention relates to recloseable packages that each include a recloseable fastener assembly that can be pinch-grip opened in conjunction with the breaking open of the package end seal.
  • Packages that can be pinch-grip opened are commonly used when packaging snack foods.
  • Film substrates utilized to make packages for snack foods, such as potato chips, corn chips, or the like have been designed so that the end seal of the package preferably breaks open prior to the tearing of the film.
  • Pinch-grip opening recloseable packages provides several benefits over other types of recloseable packaging. Aside from the fact that most consumers have a tendency to open snack food packaging this way, other technical benefits exist as well.
  • One important benefit is that packages which can be opened in this fashion allow the package to be formed with the recloseable fastener disposed totally within the confines of the package, and therefore not interfere with the barrier properties of the package. Unlike most other packages with recloseable fastener arrangements there is no need to provide a separate, dedicated means for accessing the recloseable fastener. Such access means often require perforations that compromise the gas barrier properties of the package.
  • the gas barrier properties, of snack food packaging are of critical importance to the freshness of the product being packaged.
  • the recloseable fastener When utilizing such opposing wall recloseable fastener arrangements, the recloseable fastener must be opened before the end seal of the package is broken open when pinch-grip opening the package. This requires that the recloseable fastener assembly have the right mechanical elements to allow it to open from the opposite direction than is typical, that is, from the bottom up (i.e., the "product side"), instead of the top down.
  • the present invention overcomes the shortcomings of the prior art by providing a recloseable fastener with interlocking profile strips that can be used with packages utilizing- grip opening without the need for the typical leverage required of the recloseable fasteners used in conjunction with form, fill, and seal machinery when transversely applying recloseable fasteners.
  • the present invention is directed to a package that can be pinch-grip opened without the fastener strips tearing away from the panels of the package.
  • One solution is to utilize a fastener assembly that is designed to unlock when lateral forces are applied to its members.
  • Another advantage of the present invention is that when using conventional locking members, a method is taught whereby the locking members can be left unlocked in a center portion where the forces are the greatest.
  • An improved recloseable package embodying the principles of the present invention comprises a package body including a front wall or panel, and a rear wall or panel joined to each other.
  • a recloseable fastener assembly is joined to the package body for gaining access to the interior of the package body, with the fastener assembly including first and second fastener elements which can be releasably secured to each other for closing the package body after the fastener elements have been separated from each other.
  • the first and second fastener elements are at least partially separated from each other, intermediate the ends of the fastener assembly, to facilitate initial separation of the first and second fastener elements.
  • the first and second fastener elements respectively define at least one groove, and at least one projection, or vice versa, which cooperate with each other to releaseably secure the fastener elements to each other.
  • Flange portions of the fastener assembly facilitate its securement to the inside surface of the film material or the like from which the package is formed, and facilitates releasable opening of the package.
  • the first fastener element has a pair of first flange portions respectively extending in generally opposite directions thereof to facilitate joining of the fastener assembly to the package body, such as to the inside of the front panel of the package.
  • the second fastener element has a single, second flange portion extending from only one side thereof, to facilitate joining of the second fastener element to the interior of the package body after the package body is formed generally about the fastener assembly.
  • the fastener assembly is provided with three flange portions which are secured to the inside of the package body.
  • the fastener assembly of the present invention is preferably configured to facilitate pinch-grip opening of the package by gripping and separating the front and rear panels thereof.
  • the present package is configured so as to facilitate pinch-grip opening, without separation of the second fastener element, having a single flange portion, from the interior of the package body or without permanently deforming the package body, such as by delamination thereof.
  • the fastener assembly is configured to facilitate pinch-grip opening by the first and second fastener elements being partially separated from each other, intermediate the ends of the fastener assembly. Pinch-grip opening of the package by separation of the fastener elements and subsequent opening of the generally adjacent end seal, is thus facilitated.
  • the fastener assembly itself can be configured to facilitate separation of the fastener element in a preferential fashion, that is, providing fastener elements which provide the desired releasable securement when separated normally, generally away from each other, but which can be more easily separated from each other when manipulated in a different fashion.
  • this aspect of the present invention contemplates the fastener elements can be configured to facilitate separation from each other by movement of the first fastener assembly in a direction, relative to the second fastener assembly, which is generally away from the direction in which the flange portion of the second fastener element extends from the second fastener element.
  • the single flange of the second fastener element extends in a direction generally toward an end seal of the package generally adjacent to which the fastener assembly is positioned in closely spaced relationship.
  • This arrangement facilitates pinch-grip opening of the package, in that separation of the front and rear panels away from each other acts to pull the first fastener element in a direction generally away from the direction in which the flange portion of the second fastener element extends.
  • FIGURE 1 is a perspective view of a recloseable package embodying the principles of the present invention
  • FIGURE 2 is a view similar to FIGURE 1 , illustrating the application of forces to front and rear panels of the package for effecting pinch-grip opening;
  • FIGURE 3 is a cross-sectional view taken generally along lines 3-3 of FIGURE 1 illustrating the present recloseable package, and its contents, prior to opening;
  • FIGURE 4 is a cross-sectional view similar to FIGURE 3, illustrating application of forces to the front and rear panels of the package for effecting pinch-grip opening;
  • FIGURE 5 is a perspective view of a recloseable fastener assembly configured in accordance with the present invention to facilitate pinch-grip opening of a package having the assembly;
  • FIGURE 6 is a diagrammatic, cross-sectional view illustrating the recloseable fastener assembly of a recloseable package embodying the prior art
  • FIGURE 7 is a cross-sectional view similar to FIGURE 6, illustrating a recloseable package, with a recloseable fastener assembly embodying the principles of the present invention to facilitate pinch-grip opening;
  • FIGURE 8 is a diagrammatic view similar to FIGURE 6, illustrating forces applied to a package, configured in accordance with the prior art, attendant to pinch-grip opening;
  • FIGURE 9 is a diagrammatic view illustrating a recloseable package having a recloseable fastener assembly configured in accordance with FIGURE 7, and embodying the present invention, showing forces applied thereto attendant to pinch-grip opening.
  • bag 10 is specifically configured in a manner which facilitates formation of the bag from a substantially continuous web of film material, to which fastener assemblies have been previously applied, for use in a so-called form, fill, and seal apparatus for packaging of food products, or non-food products.
  • the present package can be configured for packaging of non-food items such as hardware articles or the like, wherein repeated opening and closing of the package is desired.
  • the recloseable bag 10 is formed from a generally rectangular sheet of film material, and includes a top end generally designated 12, a bottom end generally designated 14, and front and back walls 16 and 18.
  • the front and back walls are joined to each other by upper and lower seams 20, 22, respectively provided at top and bottom ends 12 and 14 of the bag.
  • Lateral edges of the rectangular sheet of film material from which the bag body is formed are joined to each other along a back seam 24 extending vertically along back wall 18.
  • the seams 20, 22, and 24 can be formed adhesively, or by heat- sealing as is known in the art.
  • Recloseable bag 10 includes profile strip fastener assembly 26 which is sealingly mounted on the inside surface of front wall 16, transversely of and perpendicular to back seam 24, and the forming axis of the bag 10.
  • fastener assembly 26 has a length no more than one- half the width of the rectangular sheet of film material from which the bag body is formed.
  • a substantially continuous sheet of film material is provided with a plurality of the fastener assemblies 26 mounted thereon at spaced locations, which spacing corresponds to the length dimension of the bags ultimately to be formed.
  • this web of film material (with the fastener assemblies mounted thereon) is supplied to a form, fill, and seal apparatus which operates to form a series of the bags 10, in end-to-end relationship, by formation of back seam 24, bottom seam 22, and top seam 20, as food product is supplied to the individual bags being formed.
  • the individual bags are ordinarily separated from each other for packaging and shipment, as may be required.
  • the package of the present invention is specifically configured to facilitate pinch- grip opening thereof, that is, initial opening of the package by gripping the front and rear panels of the package, and separating them from each other.
  • first and second recloseable fastener elements of the fastener assembly are separated from each other, generally within the interior of the package, and the end seal of the package, such as the upper end seal generally adjacent the fastener assembly, then opened generally by delamination or other deformation of the end seal.
  • the fastener assembly of the present invention includes three flange portions, which arrangement facilitates securement of the fastener assembly within the package body, generally as the package body is formed about the fastener assembly.
  • one of the panels of the package typically the rear panel, is joined to the single flange of the second fastener element, with the fastener assembly thus joined to, and generally extending between, the front and rear panels of the package.
  • FIGURE 3 generally illustrates the package after its formation and sealing, with the contents therein, and the three-flange fastener assembly 26 extending generally between the front and rear panels 16 and 18 thereof.
  • FIGURE 4 illustrates forces being exerted on the package to effect pinch-grip opening thereof.
  • the forces exerted on the package tend to orient the fastener assembly such that the fastener elements thereof are generally subjected to shear forces.
  • typical fastener assemblies are ordinarily configured to not release or separate when subjected to shear forces. It was thus recognized that configuring the fastener assembly to facilitate opening in this fashion, without separation of the single flange portion of the second fastener element from the package, or by delamination or other deformation of the rear panel of the package, is necessary.
  • FIGURE 5 illustrates one form of the present fastener assembly, wherein the first and second fastener elements 28, 30 of the assembly 26 are partially separated from each other, intermediate the ends of the fastener assembly as illustrated at 32, to facilitate initial separation of the first and second fastener elements attendant to pinch-grip opening of the package.
  • this partial separation acts to relatively reduce the relative holding force of the fastener elements, while permitting the elements to otherwise function in a normal fashion to provide the desired recloseable feature for the package.
  • fastener assembly 26 is illustrated as including fastener elements in the form of profile strips, but it will be appreciated that the assembly 26 may be otherwise configured, such as comprising adhesive fastener elements, hook-and-loop fastener elements, or the like.
  • FIGURES 6 and 8 generally illustrate the action of fastener elements, F 1 and F 2 , having a generally typical configuration, shown in package P, wherein the fastener elements can be separated by pulling them away from each other.
  • FIGURES 7 and 9 illustrate a fastener assembly 26" having fastener elements 28', 30' in accordance with the present invention, wherein the fastener elements have been configured to preferentially separate to facilitate separation by movement of the first fastener element in a direction, relative to the second fastener element, which is generally away from the direction in which the single second flange portion of the second fastener element extends.
  • this configuration facilitates separation of the first and second fastener elements, without undesired separation of the single flange of the second fastener element from the associated panel of the package, or delamination of the package body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Abstract

Un emballage refermable comprenant un ensemble de fermeture refermable est configuré de manière à faciliter l'ouverture par pincement de l'emballage. L'ouverture s'effectue par serrage et séparation des panneaux avant et arrière de l'emballage. L'ensemble de fermeture refermable est configuré de manière à s'ouvrir et à se séparer pendant l'ouverture par pincement, sans que l'ensemble de fermeture ne se sépare et/ou se décolle du corps de l'emballage. Par conséquent, les éléments de l'ensemble de fermeture refermable sont en partie séparés l'un de l'autre, à mi-chemin par rapport à leurs extrémités, pour faciliter l'ouverture de l'ensemble de fermeture sans séparation de l'ensemble et du corps. En variante, l'ensemble de fermeture peut être configuré de sorte que l'un des éléments comprenne une paire de parties de brides pour une fixation sur le corps de l'emballage, alors que l'autre élément de fermeture comprend une partie de bride unique. Les éléments de fermeture sont configurés de manière à se séparer de préférence dans une direction s'éloignant généralement de la direction dans laquelle la partie de bride unique s'étend.
PCT/US2009/000091 2008-01-08 2009-01-08 Emballage refermable amélioré pour ouverture par pincement WO2009089019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/811,988 US20100290719A1 (en) 2008-01-08 2009-01-08 Improved recloseable package for pinch-grip opening

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1035508P 2008-01-08 2008-01-08
US61/010,355 2008-01-08

Publications (1)

Publication Number Publication Date
WO2009089019A1 true WO2009089019A1 (fr) 2009-07-16

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ID=40853403

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/000091 WO2009089019A1 (fr) 2008-01-08 2009-01-08 Emballage refermable amélioré pour ouverture par pincement

Country Status (2)

Country Link
US (1) US20100290719A1 (fr)
WO (1) WO2009089019A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118737B2 (en) 2012-10-24 2018-11-06 Illinois Tool Works Inc. Child-resistant reclosable bags
US10287063B2 (en) 2012-10-24 2019-05-14 Illinois Tool Works Inc. Child-resistant reclosable bags
US11286086B2 (en) 2018-12-19 2022-03-29 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11292638B2 (en) 2018-12-19 2022-04-05 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11572219B2 (en) 2019-02-08 2023-02-07 Elplast Europe Sp. Z O.O. Zipper closure and package using the same

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646975B2 (en) * 2009-08-14 2014-02-11 Cryovac, Inc. Easy open and reclosable package with discrete tape and die-cut web
US9221591B2 (en) * 2009-08-14 2015-12-29 Cryovac, Inc. Easy open and reclosable package with discrete laminate with die-cut
US8622618B2 (en) * 2009-08-14 2014-01-07 Cryovac, Inc. Easy open and reclosable package with discrete laminate having panel section with easy-open sealant
US8979370B2 (en) 2011-01-28 2015-03-17 Cryovac, Inc. Easy open and reclosable package with discrete laminate with die-cut
US9260214B2 (en) 2012-02-13 2016-02-16 Cryovac, Inc. Easy open and reclosable package with panel section with die-cut, and reclosure mechanism
US8727621B2 (en) 2012-02-13 2014-05-20 Cryovac, Inc. Easy open and reclosable package with die-cut web and reclosure mechanism
US8807834B2 (en) 2012-02-13 2014-08-19 Cryovac, Inc. Easy open and reclosable package with panel section with easy open sealant, and reclosure mechanism
US9586724B2 (en) 2014-06-10 2017-03-07 Cryovac, Inc. Easy open and reclosable gusseted package with die-cut web and reclosure mechanism
WO2021161296A1 (fr) * 2020-02-12 2021-08-19 Aquabot Ltd. Sac à fermeture automatique

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US4817188A (en) * 1988-03-07 1989-03-28 Minigrip, Inc. Bag with separate attached zipper and method of making
US4946289A (en) * 1987-02-06 1990-08-07 Union Camp Corporation Reclosable open mouth bag
US5972396A (en) * 1998-05-15 1999-10-26 Recot, Inc. Flexible package having a re-closable zipper
US20010046334A1 (en) * 1997-04-11 2001-11-29 Innoflex Incorporated Reclosable bag with profile strip fastener assembly having improved opening feature

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US2519290A (en) * 1946-03-11 1950-08-15 Rogers Imp S Inc Tobacco pocket and closure means therefor
US4024010A (en) * 1975-05-15 1977-05-17 Minigrip, Inc. Open profile bag
US4561109A (en) * 1982-10-12 1985-12-24 Mobil Oil Corporation Plastic bags with releasable closure which resists opening from inside
US4617683A (en) * 1984-01-30 1986-10-14 Minigrip, Inc. Reclosable bag, material, and method of and means for making same
US5174658A (en) * 1991-07-12 1992-12-29 The Procter & Gamble Company Self-expanding and reclosable flexible pouch
US5511884A (en) * 1994-12-05 1996-04-30 Bruno; Edward C. Recloseable plastic bag with easy open and easy reclose profiles
US6030122A (en) * 1998-03-06 2000-02-29 Illinois Tool Works Inc. Pinch-grip zipper
US7565977B2 (en) * 2004-02-13 2009-07-28 Leonard Frenkil Sealable bag with excess air evacuation blocking structure

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US4946289A (en) * 1987-02-06 1990-08-07 Union Camp Corporation Reclosable open mouth bag
US4817188A (en) * 1988-03-07 1989-03-28 Minigrip, Inc. Bag with separate attached zipper and method of making
US20010046334A1 (en) * 1997-04-11 2001-11-29 Innoflex Incorporated Reclosable bag with profile strip fastener assembly having improved opening feature
US5972396A (en) * 1998-05-15 1999-10-26 Recot, Inc. Flexible package having a re-closable zipper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118737B2 (en) 2012-10-24 2018-11-06 Illinois Tool Works Inc. Child-resistant reclosable bags
US10287063B2 (en) 2012-10-24 2019-05-14 Illinois Tool Works Inc. Child-resistant reclosable bags
US11286086B2 (en) 2018-12-19 2022-03-29 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11292638B2 (en) 2018-12-19 2022-04-05 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11511914B2 (en) 2018-12-19 2022-11-29 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11530076B2 (en) 2018-12-19 2022-12-20 Reynolds Presto Products Inc. Hidden flange child resistant closure for recloseable pouch and methods
US11572219B2 (en) 2019-02-08 2023-02-07 Elplast Europe Sp. Z O.O. Zipper closure and package using the same

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