Protective strip for Z-fold bag closure

Details Protective strip for Z-fold bag closure Protective strip for Z-fold bag closure

1981-12-30

1983-10-18

Price, William

Flexible bags

With closure

With provision for positioning closure element in nonuse...

206632, 383 86, B65D 3320

Patent

active

044101309

ABSTRACT:
An improved Z-fold closure for flexible bags such as thermoplastic bags comprising polyethylene film comprising a pressure sensitive adhesive strip and a protective strip having one or more ribs of sufficient stiffness and dimension so that the strip of adhesive is substantially contacted by only the top portion(s) of the rib(s) when the bag closure is in a stored or "z" fold position.

REFERENCES:
patent: Re28969 (1976-09-01), Naito
patent: 3339606 (1967-09-01), Kugler
patent: 3420433 (1969-01-01), Bostwick
patent: 3670876 (1972-06-01), Davis
patent: 3990627 (1976-11-01), Olson
patent: 4186786 (1980-02-01), Kirkpatrick
patent: 4199062 (1980-04-01), Johnston et al.

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