CA2067416A1 - Perforated tear strip for easy-open flexible containers - Google Patents

Perforated tear strip for easy-open flexible containers

Info

Publication number
CA2067416A1
CA2067416A1 CA2067416A CA2067416A CA2067416A1 CA 2067416 A1 CA2067416 A1 CA 2067416A1 CA 2067416 A CA2067416 A CA 2067416A CA 2067416 A CA2067416 A CA 2067416A CA 2067416 A1 CA2067416 A1 CA 2067416A1
Authority
CA
Canada
Prior art keywords
membrane
bag
container
easy
opening
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.)
Granted
Application number
CA2067416A
Other languages
French (fr)
Other versions
CA2067416C (en
Inventor
Frank La Pierre
Daniel Beyer
Daniel P. Mcdonald
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.)
Illinois Tool Works Inc
Original Assignee
Individual
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
Priority claimed from US07/695,263 external-priority patent/US5121997A/en
Application filed by Individual filed Critical Individual
Publication of CA2067416A1 publication Critical patent/CA2067416A1/en
Application granted granted Critical
Publication of CA2067416C publication Critical patent/CA2067416C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

An easy-open container includes a membrane forming the top edge of the container and hermetically sealing the contents thereof. Means for opening the container are disposed on the membrane, and include a first bead of thermoplastic material and a first perforated line for tearing across the membrane. In one embodiment the membrane is disposed inward from the mouth of the bag, leaving portions of the bag walls extending upward beyond the container top edge to form guide rails which facilitate opening of the container. One guide rail is removed as the bag is opened and remaining portions of the bag walls are offset to enhance access to the bag contents. A membrane for sealing the mouth opening of a bag-like structure is also provided, as are methods for making an easy-open container and for making a membrane having the structures aforesaid.
CA002067416A 1991-05-03 1992-04-28 Perforated tear strip for easy-open flexible containers Expired - Lifetime CA2067416C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/695,263 US5121997A (en) 1990-10-09 1991-05-03 Perforated tear strip for easy-open flexible containers
US07/695,263 1991-05-03

Publications (2)

Publication Number Publication Date
CA2067416A1 true CA2067416A1 (en) 1992-11-04
CA2067416C CA2067416C (en) 1996-09-24

Family

ID=24792299

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002067416A Expired - Lifetime CA2067416C (en) 1991-05-03 1992-04-28 Perforated tear strip for easy-open flexible containers

Country Status (1)

Country Link
CA (1) CA2067416C (en)

Also Published As

Publication number Publication date
CA2067416C (en) 1996-09-24

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry