Zipper closure with unitary adhesive cover sheet

Details Zipper closure with unitary adhesive cover sheet Zipper closure with unitary adhesive cover sheet

1985-08-05

1987-09-01

Marcus, Stephen

Flexible bags

With closure

Rib and groove

24576, 156 66, 478 40, B65D 3316

Patent

active

046913734

ABSTRACT:
Zipper closures for selective attachment along elongated openings in preexisting containers such as bags or cartons to thereby convert such cartons or bags into reclosable containers. The closure for each container comprises a section of a zipper strip assembly having a pair of separable and reclosable strip members provided with respective attachment surfaces on which there is pressure sensitive adhesive. Peelable cover sheet engages the adhesive protectively to permit handling of the zipper closure either as individual lengths or in an indeterminate length from which sections may be severed. The zipper closure is easily applied by peeling the cover sheet and adhesively attaching the attachment surfaces to lips at opposite sides of the elongated opening in the container.
Method and apparatus for making the new and improved zipper closure are also provided.

REFERENCES:
patent: Re19128 (1934-04-01), Drew
patent: Re28969 (1976-09-01), Naito
patent: 2382930 (1945-08-01), Williams
patent: 2483604 (1949-10-01), Abramson
patent: 2550000 (1951-04-01), Brady et al.
patent: 2768922 (1956-10-01), Klein
patent: 2978769 (1961-04-01), Harrah
patent: 3006793 (1961-10-01), Wheeler, III
patent: 3785614 (1974-01-01), Canepa
patent: 3948705 (1976-04-01), Ausnit
patent: 4341575 (1982-07-01), Herz
patent: 4354541 (1982-10-01), Tilman
patent: 4561109 (1985-12-01), Herrington

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