EP1053948A2 - Sack mit Reissverschluss und abziehbarer Innendichtung - Google Patents

Sack mit Reissverschluss und abziehbarer Innendichtung Download PDF

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Publication number
EP1053948A2
EP1053948A2 EP00460034A EP00460034A EP1053948A2 EP 1053948 A2 EP1053948 A2 EP 1053948A2 EP 00460034 A EP00460034 A EP 00460034A EP 00460034 A EP00460034 A EP 00460034A EP 1053948 A2 EP1053948 A2 EP 1053948A2
Authority
EP
European Patent Office
Prior art keywords
closure
package
peelable seal
zipper closure
interior
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Withdrawn
Application number
EP00460034A
Other languages
English (en)
French (fr)
Other versions
EP1053948A3 (de
Inventor
Richard G. Custer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reynolds Consumer Products Inc
Original Assignee
Reynolds Consumer Products Inc
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 Reynolds Consumer Products Inc filed Critical Reynolds Consumer Products Inc
Publication of EP1053948A2 publication Critical patent/EP1053948A2/de
Publication of EP1053948A3 publication Critical patent/EP1053948A3/de
Withdrawn legal-status Critical Current

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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
    • B65D33/25—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

Definitions

  • the present disclosure generally relates to closure arrangements for packages.
  • the present disclosure relates to closure arrangements having recloseable profiles and slider devices to open and close the profiles.
  • resealable containers to store various types of articles and materials. These packages may be used to store and ship food products, non-food consumer goods, medical supplies, waste materials, and many other articles. Slider devices have been used to help open and close closure profiles on recloseable and/or resealable bags and other packages.
  • Resealable packages are convenient in that they can be closed and resealed after the initial opening to preserve the enclosed contents. The need to locate a storage container for the unused portion of the products in the package is thus avoided. As such, providing products in resealable packages appreciably enhances the marketability of those products.
  • Some perishable goods are sold to consumers already packaged in a recloseable package.
  • cheese, meat or vegetable products can be packaged in a bag with recloseable closure profiles so that after opening the package, it can be re-closed.
  • these packages include tamper evident features to inform the consumer whether the package previously has been opened. Because of the construction of these packages with recloseable closure profiles, it has been difficult to place tamper evident features on bags or packages that include a slider device to help open and close the recloseable closure profiles.
  • Improvements in packaging that includes tamper evident features and easily recloseable seals, are desirable.
  • the present disclosure relates to a package, such as a flexible bag, having a combination of a resealable, recloseable zipper closure mechanism and a tamper evident peelable seal. Opening and closing of the zipper closure mechanism is accomplished by a slider device mounted on the zipper closure mechanism. The slider device facilitates mating and unmating of the first and second profile members of the zipper closure. A peelable seal is positioned on the package between the zipper closure mechanism and the package interior. Access to the interior of the package interior, and any items packaged therein, cannot be gained until the zipper closure has been opened and the tamper evident peelable seal has been opened.
  • a package with a surrounding wall defining an interior and with a mouth is disclosed; the mouth providing access to said package interior.
  • a recloseable zipper closure having first and second interlockable closure profiles is positioned along the mouth for selective opening and closing of the mouth.
  • a slider device is mounted on the zipper closure and is configured and constructed to selectively interlock and disengage the first and second closure profiles so as to open and close the zipper closure.
  • a peelable seal is positioned between the recloseable zipper closure and the package interior, so as to deny access to the package interior until the peelable seal is broken.
  • a method of opening a package is also provided.
  • FIGS. 1 and 2 illustrate an example of a packaging arrangement in the form of a resealable, flexible package 10 having a zipper closure 11 with first and second closure profiles 12, 14 and a slider device 16 to open and close (mate and unmate) the profiles 12, 14.
  • the flexible package 10 includes first and second opposed panel sections 20, 22 made from flexible, polymeric film.
  • the first and second panel sections 20, 22 are heat-sealed together along two edges 24, 26 (FIG. 1) and meet at a fold line in order to form a three-edged containment section for a product within the interior 25 (FIG. 2) of the package 10.
  • the fold line comprises the bottom edge 28.
  • two separate panel sections 20, 22 of polymeric film may be used and heat-scaled together along the two edges 24, 26 and at the bottom edge 28.
  • the package 10 may include pleats to allow expansion of package 10 in width; a pleat in the bottom is commonly referred to as a "bottom gusset". Access is provided to the interior 25 of the package 10 through a mouth 30 (FIG.
  • interior it is meant the inner volume of the package configured and constructed to hold items.
  • the “interior” of the package is defined by the inner surfaces 20a, 22a of first and second panel sections 20, 22 and by a permanent bottom seal, for example bottom edge 28.
  • the zipper closure 11 may be selected from a variety of configurations and structures.
  • the zipper closure 11 can be constructed according to U.S. Patent Nos. 4,240,241; 4,246,288; or 4,437,293; each of which is incorporated by reference herein,
  • the zipper closure 11 has first and second closure profiles 12, 14 in the form of a first profile member 32 and second profile member 34.
  • a first depending fin or flange 42 extends from first profile member 32
  • a second depending fin or flange 44 extends from second profile member 34.
  • the zipper closure 11 is formed separately from the panel sections 20, 22 (FIG. 1), the first and second fins 42, 44 are attached, typically thermally fused, to inner surfaces 20a, 22a of the respective first and second panel sections 20, 22.
  • Thermally fusing typically refers to the application of pressure and heat either or both of the panel sections 20, 22 and fins 42, 44.
  • the zipper closure 11 may be extruded with the panel sections 20, 22 such that the first fin 42 is integrally formed with the first panel section 20, and the second fin 44 is integrally formed with the second panel section 22.
  • slider device 16 mounted on zipper closure 11, engages and disengages first and second closure profiles 12, 14.
  • Slider device 16 functions by facilitating the mating, engaging or interlocking (closing) and unmating (opening) of zipper closure 11, and is typically made from a molded plastic material.
  • Slider device 16 closes closure profiles 12, 14 by pressing the two profiles 12, 14, in particular, first profile member 32 and second profile member 34 (illustrated in FIG. 3) together so that they mate, providing a seal.
  • slider device 16 opens profiles 12, 14 by providing a wedge between the two profiles 12, 14.
  • First and second closure profiles 12, 14 can then be spread apart to provide access to the package interior through mouth 30.
  • Slider devices and how they function to open and close zipper closures, in general, are taught, for example, in U.S. Patent Nos. 5,063,644; 5,301,394; 5,442,837, and 5,664,229, each of which is incorporated by reference herein.
  • a preferred slider device is taught in U.S. patent applications 09/365,215 and 29/108,657, both filed July 30, 1999 and incorporated herein by reference in their entirety.
  • a tamper evident peelable seal is provided between zipper closure 11 and package interior 25; the tamper evident seal provides evidence whether or not the recloseable package 10 has been previously opened.
  • tamper evident it is meant that an attempt to breach the integrity of a seal is evidenced or shown by a distortion or destruction of the seal.
  • peelable it is meant that the bonding strength between the layers forming the peelable seal is less than the bonding strength of other layers in the package 10, so that when a pulling force is applied, the layers forming the peelable seal will break or peel apart before other portions of package 10.
  • FIG. 2 illustrates a peelable seal 50 in package 10 configured and constructed to protect the interior 25 of package 10.
  • peelable seals 450, 550, 650 respectively, in packages 410, 510, 610, respectively. It will be appreciated that when peelable seal 50 is undisturbed (that is, seal 50 has not been opened or otherwise breached), access cannot be gained to the package interior 25 (FIG. 2).
  • peelable seal 50 is positioned between zipper closure 11 and package interior 25 and provides a seal that does not allow access to interior 25 of package 10 unless peelable seal 50 is opened.
  • a cavity 15 may be created between peelable seal 50 and zipper closure 11, depending on the structure and position of peelable seal 50. It will be appreciated that cavity 15 is not the intended receptacle for items to be stored within package 10.
  • peelable seal 50 will remain intact and retain the security of the contents of the package 10 by not permitting package 10 to be opened and access gained to the interior 25.
  • peelable seal 50 extends the entire width of package 10; that is, from edge 24 to edge 26 (FIG. 1), or at least the entire length of zipper closure 11.
  • Peelable seals are known in the packaging art, and examples of peelable seals that may be useable with the package of the present disclosure are taught in U.S. Patent Nos. 4,923,309; 4,925,316; 5,425,825; 5,456,928; 5,470,156; and 5,733,636 the disclosures of which are incorporated herein by reference.
  • One approach is to provide a thin bead or layer of adhesive between panel section 20 and 22; the bonding strength of the adhesive to the interior surfaces 20a, 22a is less than the tearing strength of panels 20, 22.
  • a peelable seal 50 is formed by sealing, such as heat sealing, the first and second multilayered films to one another.
  • Another approach is to adhere a layer of film to each of interior surfaces 20a, 22a or fins 42, 44 and to introduce a contaminant to one or both of the film layers. When the peelable seal 50 is formed by heat sealing the layers to one another, the bond between them is weak due to the surface contamination. All of these peelable seals are broken or otherwise breached by separating first and second panel sections 20, 22.
  • Peelable seal 50 no matter how constructed or applied, should provide a seal across the width of package 10, or at least along the length of zipper closure 11, so that any tampering, vandalism, mutilation, or other attempts to access interior 25 are readily discernible. When broken, peelable seal 50 may exhibit distortion, a color change, the emergence of graphics or the like, or may have an inability to reseal. Specific examples of various embodiments of a peelable seal 50 will now be described in reference to FIGS. 4, 5 and 6.
  • FIG. 4 illustrates a package 410 having a zipper closure 411 with first and second closure profiles 412, 414.
  • a slider device is used to engage and disengage first and second closure profiles 412, 414.
  • First panel section 420 is thermally fused to first closure profile 412 and sealant strip 426, and second panel section 422 is thermally fused to second closure profile 414 at preselected locations.
  • Package 410 further includes peelable seal 50, in particular a peelable seal 450 having a T-shaped peelable strip 424 and a sealant strip 426, that seals the access to package interior 425.
  • Peelable seal 450 provides a peelable feature to package 410 at the location 428.
  • the T-shaped peelable strip 424 is composed of peelable material and includes a top portion 432 and a stem portion 434.
  • the stem portion 434 is integrally formed with the top portion 432 and extends perpendicular to the center of the top portion 432.
  • Non-sealable strips 421, 423 are positioned parallel to each other and arc spaced from each other so as to form a gap 430 between strips 421, 23 and stem portion 434 of T-shaped peelable strip 424.
  • the stem portion 434 projects into a gap 430 between the non-sealable strips 421, 423, and the base of the stem portion 434 is attached to the inner surface of the second closure profile 414.
  • the sealant strip 426 is composed of low-temperature sealant material and is firmly attached to the outer (left) surface of the top portion 432 of the peclable strip 424. Since the sealant strip 426 bonds readily to other materials at low temperatures, the sealant strip 426 acts as a bridge for attaching the first panel section 420 to the top portion 432 of the peelable strip 424. Alternatively, the first panel section 420 may be thermally fused directly to the top portion 432 of the peelable strip 424 by use of higher temperatures, greater pressure and/or greater dwell time during the heat sealing process.
  • FIG. 5 illustrates a package 510 with a zipper closure 511 having first and second closure profiles 512, 514.
  • a slider device is used to engage and disengage first and second closure profiles 512, 514.
  • Package 510 further includes a peelable seal 50, in particular a peelable seal 550 having peelable bands 566, 568 with each pair of peelable bands attached to each other to form individual peelable seals therebetween, to seal access to the package interior 525.
  • Non-sealable strips 560, 562, 564 surround the peelable bands 566, 568, Therefore, one peelable seal is formed between the pair of peelable bands 566, and another peelable seal is formed between the pair of peelable bands 568.
  • the strength of the combined peelahle seal is determined by the width of the peelable bands 566, 568, the number of pairs of peelable bands 566, 568, and the material composition of the peelable bands 566, 568.
  • the first and second panel sections 520, 522 that form the structure of package 510 are thermally fused to the respective fins 542, 544 of first and second closure profiles 512, 514 and simultaneously, each member of the pairs of peelable bands 566, 568 is fused to each other. This fusion of opposing peelable bands 556, 568 creates the individual peelable seals.
  • the pairs of non-sealable strips 560, 562, 564 surrounding peelable bands 556, 568 arc composed of non-sealable material, and thus do not fuse together.
  • FIG. 6 illustrates yet another embodiment of a package 610 having a zipper closure 611 with engageable first and second closure profiles 612, 614.
  • a slider device is used to engage and disengage first and second closure profiles 612, 614.
  • Peelable seal 50 in particular peelable seal 650, seals access to package interior 625.
  • the peelable seal 650 includes a flat peelable strip 690 attached to one of first and second closure profiles 612, 614; here, peelable strip 690 is attached to second closure profile 614.
  • First panel section 620 is thermally fused to both first closure profile 612 and to the peelable strip 690.
  • the second closure profile 614 is longer than first closure profile 612 and first fin 642. Due to this relatively large difference of the fin strip length, the second panel section 622 is thermally fused to the second fin 644 at multiple locations to provide a firm attachment therebetween.
  • One surface of the peelable strip 690 is firmly attached to the second closure profile 614, for example by co-extruding the peelable strip 690 with the second closure profile 614 with second fin 644.
  • a sealant strip may be interposed between the peelable strip 690 and the second fin 644. This sealant strip, however, is not necessary to provide an effective bond between the peelable strip 690 and the second closure profile 614.
  • the opposite surface of the peelable strip 690 is attached to the first panel section 620 to form a peelable seal 650.
  • slider device 16 When flexible package 10 (or any other package such as 410, 510, 610) having zipper closure 11 operable by slider 16, is ready to be opened by the purchaser of the package, slider device 16 is moved from a first position to a second position, so that slider device disengages first closure profile 12 from second closure profile 14 and opens zipper closure 11. This action will expose any cavity 15 and peelable seal 50.
  • peelable seal 50 To gain access to the items stored in package interior 25, peelable seal 50 must be broken.
  • first closure profile 12 and second closure profile 14 of zipper closure 11 are grasped and separated. This action of forcing the two closure profiles 12, 14 and the attached panel sections 20, 22 apart should break or otherwise breach peelable seal 50. After peelable seal 50 has been opened, access can be gained to the interior 25 of package 10.
  • peelable seal 50 When package 10 is resealed by closing zipper closure 11, peelable seal 50 does not return to its undistorted or undamaged state; rather, peelable seal 50 evidences that the seal to the package interior 25 has been breached.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Slide Fasteners (AREA)
EP00460034A 1999-05-14 2000-05-12 Sack mit Reissverschluss und abziehbarer Innendichtung Withdrawn EP1053948A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13427899P 1999-05-14 1999-05-14
US134278P 1999-05-14
US56761600A 2000-05-10 2000-05-10
US567616P 2000-05-10

Publications (2)

Publication Number Publication Date
EP1053948A2 true EP1053948A2 (de) 2000-11-22
EP1053948A3 EP1053948A3 (de) 2001-04-04

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EP00460034A Withdrawn EP1053948A3 (de) 1999-05-14 2000-05-12 Sack mit Reissverschluss und abziehbarer Innendichtung

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20207333U1 (de) 2002-05-10 2002-09-12 Bischof und Klein GmbH & Co. KG, 49525 Lengerich Wiederverschließbares Verpackungsbehältnis
EP1253081A1 (de) * 2001-04-27 2002-10-30 Illinois Tool Works Inc. Verfahren und Vorrichtung zur Herstellung von wiederverschliessbaren Beuteln
GB2384766A (en) * 2002-02-04 2003-08-06 Illinois Tool Works A fastener assembly for a reclosable bag
EP1388503A1 (de) * 2002-08-07 2004-02-11 P.F.M. S.p.A. Hermetisch versiegelte Verpackung insbesonders für Feuchttücher
EP1403191A1 (de) * 2002-09-30 2004-03-31 Illinois Tool Works Inc. Beutel mit Reissverschluss und Verfahren zur Herstellung desselben
EP1279612A3 (de) * 2001-07-27 2004-06-30 Illinois Tool Works Inc. Verfahren zum Herstellen von wiederverschliessbaren Kuntstoffbeuteln
EP1590253A4 (de) * 2002-12-09 2006-05-17 Cmd Corp Wiederverschliessbarer beutel
EP1551248A4 (de) * 2002-06-17 2009-11-25 Illinois Tool Works Schieberverschlussbeutel mit abzieh-originalitätsverschluss

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240241A (en) 1979-08-09 1980-12-23 W. R. Grace & Co. Method and apparatus for making a reclosable package
US4246288A (en) 1979-08-09 1981-01-20 W. R. Grace & Co. Reclosable package
US4923309A (en) 1989-02-27 1990-05-08 Illinois Tool Works Tamper-evident package
US4925316A (en) 1986-08-11 1990-05-15 Minigrip, Inc. Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closure
US5063644A (en) 1991-03-22 1991-11-12 Mobil Oil Corporation Foldable zipper slider with compression-type latch
US5301394A (en) 1993-07-29 1994-04-12 Mobil Oil Corporation Plastic reclosable fastener with slider detent lock for locking slider in closed position
US5425825A (en) 1993-04-22 1995-06-20 Rasko; George Reclosable zipper with tamper evident feature
US5442837A (en) 1994-06-20 1995-08-22 Mobil Oil Corporation Integrated end stops for zipper slider
US5456928A (en) 1989-06-30 1995-10-10 Oscar Mayer Foods Corporation Tamper-evident, flexible, reclosable package
US5470156A (en) 1994-04-11 1995-11-28 Reynolds Consumer Products, Inc. Closure arrangement having a peelable seal
US5664229A (en) 1995-05-18 1997-09-02 Symbol Technologies, Inc. Accessory for conversion with housing with first connection includes host cable and host connector and second connection including a plug-in modular connector
US5733636A (en) 1995-01-18 1998-03-31 Reynolds Metals Company Heat-sealable peelable composition
US10865700B2 (en) 2017-07-10 2020-12-15 Bombardier Recreational Products Inc. Air intake and exhaust systems for a snowmobile engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513915A (en) * 1994-04-11 1996-05-07 Reynolds Consumer Products Inc. Closure arrangement having a breakaway seal
US5486051A (en) * 1994-04-11 1996-01-23 Reynolds Consumer Products Inc. Closure arrangement having a breakaway seal
US5647671A (en) * 1994-04-11 1997-07-15 Reynolds Consumer Products, Inc. Closure arrangement having a peelable seal

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240241A (en) 1979-08-09 1980-12-23 W. R. Grace & Co. Method and apparatus for making a reclosable package
US4246288A (en) 1979-08-09 1981-01-20 W. R. Grace & Co. Reclosable package
US4437293A (en) 1979-08-09 1984-03-20 W. R. Grace & Co., Cryovac Div. Method and apparatus for making a reclosable package
US4925316A (en) 1986-08-11 1990-05-15 Minigrip, Inc. Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closure
US4923309A (en) 1989-02-27 1990-05-08 Illinois Tool Works Tamper-evident package
US5456928A (en) 1989-06-30 1995-10-10 Oscar Mayer Foods Corporation Tamper-evident, flexible, reclosable package
US5063644A (en) 1991-03-22 1991-11-12 Mobil Oil Corporation Foldable zipper slider with compression-type latch
US5425825A (en) 1993-04-22 1995-06-20 Rasko; George Reclosable zipper with tamper evident feature
US5301394A (en) 1993-07-29 1994-04-12 Mobil Oil Corporation Plastic reclosable fastener with slider detent lock for locking slider in closed position
US5470156A (en) 1994-04-11 1995-11-28 Reynolds Consumer Products, Inc. Closure arrangement having a peelable seal
US5442837A (en) 1994-06-20 1995-08-22 Mobil Oil Corporation Integrated end stops for zipper slider
US5733636A (en) 1995-01-18 1998-03-31 Reynolds Metals Company Heat-sealable peelable composition
US5664229A (en) 1995-05-18 1997-09-02 Symbol Technologies, Inc. Accessory for conversion with housing with first connection includes host cable and host connector and second connection including a plug-in modular connector
US10865700B2 (en) 2017-07-10 2020-12-15 Bombardier Recreational Products Inc. Air intake and exhaust systems for a snowmobile engine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6715262B2 (en) 2001-04-27 2004-04-06 Illinois Tool Works Inc. Form, fill and seal method and apparatus for forming reclosable bags
EP1253081A1 (de) * 2001-04-27 2002-10-30 Illinois Tool Works Inc. Verfahren und Vorrichtung zur Herstellung von wiederverschliessbaren Beuteln
JP2008074108A (ja) * 2001-04-27 2008-04-03 Illinois Tool Works Inc <Itw> 包装体
US7413535B2 (en) 2001-07-27 2008-08-19 Illinois Tool Works Inc. Method for manufacturing tamper evident reclosable plastic bags
EP1279612A3 (de) * 2001-07-27 2004-06-30 Illinois Tool Works Inc. Verfahren zum Herstellen von wiederverschliessbaren Kuntstoffbeuteln
US6659643B2 (en) 2002-02-04 2003-12-09 Illinois Tool Works Inc. Barrier arrangements for plastic bags
GB2384766B (en) * 2002-02-04 2004-08-04 Illinois Tool Works Barrier arrangements for plastic bags
GB2384766A (en) * 2002-02-04 2003-08-06 Illinois Tool Works A fastener assembly for a reclosable bag
DE20207333U1 (de) 2002-05-10 2002-09-12 Bischof und Klein GmbH &amp; Co. KG, 49525 Lengerich Wiederverschließbares Verpackungsbehältnis
EP1551248A4 (de) * 2002-06-17 2009-11-25 Illinois Tool Works Schieberverschlussbeutel mit abzieh-originalitätsverschluss
EP1388503A1 (de) * 2002-08-07 2004-02-11 P.F.M. S.p.A. Hermetisch versiegelte Verpackung insbesonders für Feuchttücher
EP1403191A1 (de) * 2002-09-30 2004-03-31 Illinois Tool Works Inc. Beutel mit Reissverschluss und Verfahren zur Herstellung desselben
US6993886B2 (en) 2002-09-30 2006-02-07 Illinois Tool Works Inc. Method for sealing zipper assembly to bag making film at three or more points
EP1590253A4 (de) * 2002-12-09 2006-05-17 Cmd Corp Wiederverschliessbarer beutel

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Publication number Publication date
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