US20090028469A1 - Method to accurately control size, velocity, and relative position sets of reclosable mechanism - Google Patents
Method to accurately control size, velocity, and relative position sets of reclosable mechanism Download PDFInfo
- Publication number
- US20090028469A1 US20090028469A1 US12/218,418 US21841808A US2009028469A1 US 20090028469 A1 US20090028469 A1 US 20090028469A1 US 21841808 A US21841808 A US 21841808A US 2009028469 A1 US2009028469 A1 US 2009028469A1
- Authority
- US
- United States
- Prior art keywords
- extruder
- zipper
- film
- reclosable
- velocity
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
- B29D5/10—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the interlocking members being formed by continuous profiled strip
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- 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
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
Abstract
Description
- This application claims priority under 35 U.S.C. §119(e) of provisional application Ser. No. 60/961,752, filed on Jul. 24, 2007.
- 1. Field of the Invention
- The present invention relates to a manufacturing method to control the size velocity and relative position of a reclosable mechanism or multiple reclosable mechanisms, such as a zipper or zippers on a flexible plastic film, bag or pouch.
- 2. Description of the Prior Art
- In the prior art of the manufacture of zippers and similar devices for reclosable plastic film, bags or pouches, the velocity of the delivery of the resin to the profiles or to the locking elements could not be accurately controlled by such elements as a choke device. This inability to accurately control the resin velocity made it difficult to extrude complex locking mechanisms at a reasonable cost and production rate.
- Further prior art includes methods where the zipper tape is extruded, wound and then, in a secondary process, unwound, heated and attached to the film. Still further prior art may be found in published patent application US2005/0269733 A1 entitled “Method of and Apparatus for Forming Multiple Closure Elements”.
- It is therefore an object of the present invention to provide a method and apparatus for the manufacture of complex locking mechanisms for reclosable interlocking elements, such as a zipper profile on a flexible film plastic package, bag or pouch, at a reasonable cost and production rate.
- It is therefore a further object of the present invention to provide accurate control of the velocity of the resin flow delivered to the profile at its point of juncture with the film or tubing of the reclosable plastic package, bag or pouch.
- It is therefore a still further object of the present invention to improve adhesion of closure elements to the body of the package, bag or pouch by preventing exposure of the contact surfaces.
- These and other objects are attained by cooling the integral profile tubing and drawing it in a negative ratio whereby the circumference of the cooled and drawn finished tubing is less than the circumference of the die plate. The resin for the profile interlocking elements is delivered from a co-extruder through a separate channel, or several separate channels, to the die body and thence to the die plate, where the resin is joined to the film (tubing) at a controlled rate, with the control being the speed of the co-extruder drive.
- Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:
-
FIG. 1 is a schematic of the apparatus of the present invention. -
FIGS. 2 a-2 i are examples of zipper profiles which can be produced by the apparatus of the present invention. - Referring now to the drawings in detail, wherein like numerals indicate like elements throughout the several views, one sees that
FIG. 1 is a schematic of theapparatus 10 of the present invention.Extrusion die body 12 receives the material for the formation of the tubing (e.g. a tube or a film), such as, but not limited to, low density polyethylene, fromprimary extruder 14 andextruder material hopper 16 viasupply channel 18.Supply channel 18 joins extrusion die bodyprimary supply channel 20 which is formed within extrusion diebody 12. Extrusion die bodyprimary supply channel 20, in turns, feeds the material for the tubing to theextrusion die cavity 22 where the tube orfilm 100 is formed. Tube orfilm 100, typically in a cylindrical shape, exits from themouth 24 ofextrusion die plate 13, and therefore may be referred to as tubing (or as a low density polyethylene bubble). The tubing is typically drawn into a negative ratio and cooled. That is, due to the speed of the film and related factors, the circumference of the cooled and drawn finishedtubing 100 is typically less than the circumference of theextrusion die plate 13, but in some applications may be the same size or even greater than the circumference of theextrusion die plate 13. -
Secondary extruders extruder material hoppers secondary extruders primary extruder 14 would supply a flexible, soft and pliable material while thesecondary extruders reclosable profiles secondary supply channels 38, 40 (typically implemented as heated hoses) and respective secondary diebody supply channels tubing 100 at a controlled rate (as well as a controlled temperature), with the control being the speed of the drive of thesecondary extruders reclosable profiles tubing 100. The resin (or other material) from thesecondary extruders reclosable profiles primary extruder 14 until it reaches theextrusion die plate 13 typically approximately one half inch (although other distances are envisioned) before both exit theextrusion die body 12. The control of the speed of the drive of thesecondary extruders secondary supply channels 38, 40 (is, in turn, typically controlled byCPU 200 or a similar processing device) thereby provides the ability to extrude more complex shapes of the interlocking elements than was previously possible. Additionally, it is envisioned that as many as nine, or even more, secondary extruders may be used, with respective material supplies and secondary supply channels to form the various complex shapes.FIGS. 2 a-2 i are representative of a sample of the many profile shapes that are possible with various embodiments of the present invention which, applicant believes, have been difficult, if not impossible, to obtain with the prior art, particularly with respect to multiple interlocking elements formed on a single profile. - The resulting configuration typically has many or all of the following advantages:
- 1. the velocity and speed of the resin for the locking mechanism is controlled separately from that of the tubing;
- 2. the velocity of the resin for the interlocking elements is controlled accurately and separately from that of the tubing;
- 3. the distance between sets of profiles is controlled;
- 4. more complex locking mechanisms may be manufactured;
- 5. the cooling rate of the interlocking elements is accurately controlled;
- 6. more complex multiple interlocking elements are possible;
- 7. interlocking elements with separators between the interlocking elements can be provided;
- 8. the shapes, construction and structural characteristics of the interlocking elements are controlled, including profiles with multiple interlocking elements;
- 9. the tubing may have two or more sets of profiles, each set provided with separate sources of profile control;
- 10. the separate resin source can be a co-extruder (or secondary extruder);
- 11. the profiles are provided with multiple interlocking elements;
- 12. a co-extruder (or secondary extruder) can provide resin flows to several sets of profiles or a separate co-extruder (or secondary extruder) can be used for each resin flow;
- 13. the flow of resin to the profiles can be controlled, so that the profiles cool at a controlled rate; and
- 14. the speed of the profile extrusion can be controlled so that the speed of the profile extrusion and the speed of the film extrusion are equal when the profile and the film come into contact with each other.
- Thus the several aforementioned objects and advantages are most effectively attained. Although preferred embodiments of the invention have been disclosed and described in detail herein, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.
Claims (30)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/218,418 US20090028469A1 (en) | 2007-07-24 | 2008-07-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
PCT/US2008/070702 WO2009015113A2 (en) | 2007-07-24 | 2008-07-22 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
US13/048,143 US20110165280A1 (en) | 2008-07-15 | 2011-03-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
US13/089,025 US20110194790A1 (en) | 2007-07-24 | 2011-04-18 | Reclosable package or bag with double zipper or similar configuration |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96175207P | 2007-07-24 | 2007-07-24 | |
US12/218,418 US20090028469A1 (en) | 2007-07-24 | 2008-07-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/220,371 Continuation-In-Part US20090025191A1 (en) | 2007-07-24 | 2008-07-24 | Reclosable package or bag with double zipper or similar configuratiion |
US13/048,143 Continuation US20110165280A1 (en) | 2008-07-15 | 2011-03-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090028469A1 true US20090028469A1 (en) | 2009-01-29 |
Family
ID=44224834
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/218,418 Abandoned US20090028469A1 (en) | 2007-07-24 | 2008-07-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
US13/048,143 Abandoned US20110165280A1 (en) | 2008-07-15 | 2011-03-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/048,143 Abandoned US20110165280A1 (en) | 2008-07-15 | 2011-03-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
Country Status (2)
Country | Link |
---|---|
US (2) | US20090028469A1 (en) |
WO (1) | WO2009015113A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090025191A1 (en) * | 2007-07-24 | 2009-01-29 | Roy Kosub | Reclosable package or bag with double zipper or similar configuratiion |
Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380481A (en) * | 1962-03-02 | 1968-04-30 | Minigrip Inc | Closed tube with fastener members |
US3579730A (en) * | 1965-10-22 | 1971-05-25 | Steven Ausnit | Apparatus for making a web having integral interlocking rib and groove portions |
US3841816A (en) * | 1971-06-30 | 1974-10-15 | Minigrip Inc | Apparatus for extruding tubing for fastener bags |
US5066444A (en) * | 1990-07-05 | 1991-11-19 | Dowbrands Inc. | Process and apparatus for reducing color contamination in the process recycle of zippered thermoplastic bags |
US5216787A (en) * | 1990-10-22 | 1993-06-08 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
US5238306A (en) * | 1989-05-19 | 1993-08-24 | Reynolds Consumer Products, Inc. | Method of producing a sealing system for a reclosable webbed-wall package, and system made |
US5242516A (en) * | 1990-10-22 | 1993-09-07 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
US5248201A (en) * | 1992-02-24 | 1993-09-28 | Reynolds Consumer Products Inc. | Interlocking closure for plastic storage bags with confirming color strips |
US5603995A (en) * | 1992-11-09 | 1997-02-18 | Idemitsu Petrochemical Co., Ltd. | Snap zipper and bag with the same |
US5930877A (en) * | 1996-05-22 | 1999-08-03 | Illinois Tool Works Inc. | Peel seal zipper tape |
US6217216B1 (en) * | 1996-02-22 | 2001-04-17 | Nossi Taheri | Reclosable plastic bag with non-perforated tear zone |
US20040234172A1 (en) * | 2003-05-19 | 2004-11-25 | Pawloski James C. | Closure device for a reclosable pouch |
US20040234173A1 (en) * | 2003-05-19 | 2004-11-25 | Saad Zain E.M. | Closure device for a reclosable pouch |
US6877898B2 (en) * | 2002-09-05 | 2005-04-12 | Illinois Tool Works Inc. | Ease of closure through tactile/optical means |
US20050244083A1 (en) * | 2003-02-19 | 2005-11-03 | Mcmahon Michael J | Reclosable vacuum storage bag having flat resealable means |
US20050269733A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Method of and apparatus for forming multiple closure elements |
US20050271307A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20050271308A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20060213038A1 (en) * | 2005-03-24 | 2006-09-28 | C.I. Sanplus Co., Ltd. | Zipper and the packaging therewith |
US7857515B2 (en) * | 2007-06-15 | 2010-12-28 | S.C. Johnson Home Storage, Inc. | Airtight closure mechanism for a reclosable pouch |
US7904995B2 (en) * | 2005-04-08 | 2011-03-15 | S2F Flexico | Bi-material closure device for a bag |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US357403A (en) * | 1887-02-08 | Pigeon-hole case | ||
JPS593340B2 (en) * | 1978-12-14 | 1984-01-24 | 株式会社生産日本社 | Tubular film with chuck and method for producing the same |
US4563319A (en) * | 1983-03-03 | 1986-01-07 | Minigrip, Inc. | Method of making quadruple profile tubing |
US4635294A (en) * | 1985-04-05 | 1987-01-06 | Minigrip Incorporated | Material for making three reclosable bag sections from extruded plastic material |
FR2589437B1 (en) * | 1985-11-04 | 1988-06-10 | Flexico France Sarl | CONNECTION DEVICE BETWEEN TWO SHEETS OF PLASTIC MATERIAL; BAG EQUIPPED, FOR CLOSING SAME, WITH SUCH A DEVICE |
US4822539A (en) * | 1987-09-14 | 1989-04-18 | Minigrip, Inc. | Method of and apparatus for extruding bag making material having fastener profiles and alignment ribs, with reinforcing and stabilizing beam effect ridge means |
JPH04133719A (en) * | 1990-09-26 | 1992-05-07 | Kiyoujin Seni Kogyo Kk | Basis material for bag and the bag |
US6066281A (en) * | 1998-06-16 | 2000-05-23 | Velcro Industries B.V. | Fastener products and their production |
-
2008
- 2008-07-15 US US12/218,418 patent/US20090028469A1/en not_active Abandoned
- 2008-07-22 WO PCT/US2008/070702 patent/WO2009015113A2/en active Application Filing
-
2011
- 2011-03-15 US US13/048,143 patent/US20110165280A1/en not_active Abandoned
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380481A (en) * | 1962-03-02 | 1968-04-30 | Minigrip Inc | Closed tube with fastener members |
US3579730A (en) * | 1965-10-22 | 1971-05-25 | Steven Ausnit | Apparatus for making a web having integral interlocking rib and groove portions |
US3841816A (en) * | 1971-06-30 | 1974-10-15 | Minigrip Inc | Apparatus for extruding tubing for fastener bags |
US5238306A (en) * | 1989-05-19 | 1993-08-24 | Reynolds Consumer Products, Inc. | Method of producing a sealing system for a reclosable webbed-wall package, and system made |
US5066444A (en) * | 1990-07-05 | 1991-11-19 | Dowbrands Inc. | Process and apparatus for reducing color contamination in the process recycle of zippered thermoplastic bags |
US5216787A (en) * | 1990-10-22 | 1993-06-08 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
US5242516A (en) * | 1990-10-22 | 1993-09-07 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
US5248201A (en) * | 1992-02-24 | 1993-09-28 | Reynolds Consumer Products Inc. | Interlocking closure for plastic storage bags with confirming color strips |
US5603995A (en) * | 1992-11-09 | 1997-02-18 | Idemitsu Petrochemical Co., Ltd. | Snap zipper and bag with the same |
US6217216B1 (en) * | 1996-02-22 | 2001-04-17 | Nossi Taheri | Reclosable plastic bag with non-perforated tear zone |
US5930877A (en) * | 1996-05-22 | 1999-08-03 | Illinois Tool Works Inc. | Peel seal zipper tape |
US6877898B2 (en) * | 2002-09-05 | 2005-04-12 | Illinois Tool Works Inc. | Ease of closure through tactile/optical means |
US20050244083A1 (en) * | 2003-02-19 | 2005-11-03 | Mcmahon Michael J | Reclosable vacuum storage bag having flat resealable means |
US20040234172A1 (en) * | 2003-05-19 | 2004-11-25 | Pawloski James C. | Closure device for a reclosable pouch |
US20040234173A1 (en) * | 2003-05-19 | 2004-11-25 | Saad Zain E.M. | Closure device for a reclosable pouch |
US20040234171A1 (en) * | 2003-05-19 | 2004-11-25 | Dais Brian C. | Reclosable pouch with closure device that allows venting and/or an air-tight seal |
US20050269733A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Method of and apparatus for forming multiple closure elements |
US20050271307A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20050271308A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20060213038A1 (en) * | 2005-03-24 | 2006-09-28 | C.I. Sanplus Co., Ltd. | Zipper and the packaging therewith |
US7904995B2 (en) * | 2005-04-08 | 2011-03-15 | S2F Flexico | Bi-material closure device for a bag |
US7857515B2 (en) * | 2007-06-15 | 2010-12-28 | S.C. Johnson Home Storage, Inc. | Airtight closure mechanism for a reclosable pouch |
Also Published As
Publication number | Publication date |
---|---|
US20110165280A1 (en) | 2011-07-07 |
WO2009015113A2 (en) | 2009-01-29 |
WO2009015113A3 (en) | 2009-12-23 |
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