Strippable seal mechanism

Details Strippable seal mechanism Strippable seal mechanism

1990-07-20

1992-01-07

Robinson, Ellis P.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428 41, 428163, 428172, 428212, 383207, 383211, B65D 6528, B65D 6532

Patent

active

050790595

ABSTRACT:
The improved strippable seal mechanism inclues first and second polymeric webs each having an exterior and interior surface. The interior surface of at least one of the first and second polymeric webs polymeric webs has a substantially adhesive surface thereon for fixedly but separably adhering to the other polymeric web's interior surface. One of the first and second polymeric webs has at least one line of reduced strength disposed at the exterior surface thereof. A manually grippable tab is disposed adjacent to and operatively connected to the line of reduced strength at the exterior surface of one of the polymeric webs. The manually grippable tab operates in conjunction with the line of reduced strength to direct a peel force along the line of reduced strength to delaminate one of the first and seocnd polymeric webs.

REFERENCES:
patent: 3655503 (1972-04-01), Stanley
patent: 4513876 (1985-04-01), Buchner
patent: 4521467 (1985-06-01), Berger
patent: 4638913 (1987-01-01), Howe, Jr.
patent: 4712706 (1987-12-01), Nakata
patent: 4875587 (1989-10-01), Lulham
patent: 4913307 (1990-04-01), Takata
patent: 4944409 (1990-07-01), Busche

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