CA2381055C - Dispositif de fermeture - Google Patents

Dispositif de fermeture Download PDF

Info

Publication number
CA2381055C
CA2381055C CA002381055A CA2381055A CA2381055C CA 2381055 C CA2381055 C CA 2381055C CA 002381055 A CA002381055 A CA 002381055A CA 2381055 A CA2381055 A CA 2381055A CA 2381055 C CA2381055 C CA 2381055C
Authority
CA
Canada
Prior art keywords
density
closure element
flange portion
density polyethylene
closure
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.)
Expired - Fee Related
Application number
CA002381055A
Other languages
English (en)
Other versions
CA2381055A1 (fr
Inventor
Michael G. Borchardt
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.)
Glad Products Co
Original Assignee
Glad Products Co
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 Glad Products Co filed Critical Glad Products Co
Publication of CA2381055A1 publication Critical patent/CA2381055A1/fr
Application granted granted Critical
Publication of CA2381055C publication Critical patent/CA2381055C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B65D33/25—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Slide Fasteners (AREA)
  • Bag Frames (AREA)
  • Closures For Containers (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

Cette invention concerne un dispositif de fermeture comprenant une première et une seconde bandes de fixation encastrables. La première bande de fixation comporte un élément de fermeture réalisé par extrusion sur une partie rebord. L'élément de fermeture et la partie rebord sont faits de matériaux de densités différentes, ce qui permet d'agir sur la forme des bandes de fixation. Ce différentiel de densité permettent d'atténuer ou de supprimer l'effet de cintrage des bandes de fixation qui apparaît pendant le processus de fabrication. Comme l'élément de fermeture a une moindre densité, mais un volume plus important, et que la partie rebord est faite dans un matériau à la densité plus élevée, le taux de cristallisation de cette partie est le même que celui de l'élément de fermeture. Cette différence de densité permet d'atténuer ou d'éliminer le cintrage des bandes de fixation.
CA002381055A 2000-06-06 2000-06-06 Dispositif de fermeture Expired - Fee Related CA2381055C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/040120 WO2001094212A2 (fr) 2000-06-06 2000-06-06 Dispositif de fermeture

Publications (2)

Publication Number Publication Date
CA2381055A1 CA2381055A1 (fr) 2001-12-13
CA2381055C true CA2381055C (fr) 2006-11-21

Family

ID=21742120

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002381055A Expired - Fee Related CA2381055C (fr) 2000-06-06 2000-06-06 Dispositif de fermeture

Country Status (3)

Country Link
AU (1) AU780866B2 (fr)
CA (1) CA2381055C (fr)
WO (1) WO2001094212A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056933A (en) * 1986-07-22 1991-10-15 First Brands Corporation Multiposition interlocking closure fastening device
US5655273A (en) * 1996-04-18 1997-08-12 Reynolds Consumer Products, Inc. Minimal curl sealing flange
US5664299A (en) * 1996-09-10 1997-09-09 Dowbrands L.P. Reclosable fastener assembly
US5944425A (en) * 1997-05-22 1999-08-31 Forman; Harold M Packages with unitarilly formed resealable closure

Also Published As

Publication number Publication date
AU6119100A (en) 2001-12-17
WO2001094212A3 (fr) 2008-03-20
CA2381055A1 (fr) 2001-12-13
WO2001094212A2 (fr) 2001-12-13
AU780866B2 (en) 2005-04-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130606