Easy opening bag

Details Easy opening bag Easy opening bag

1982-09-30

1984-10-23

Moy, Joseph Man-Fu

Flexible bags

With closure

Rib and groove

383 93, B65D 3324

Patent

active

044792441

ABSTRACT:
A reclosable plastic bag construction having front and back walls attached at their side edges with continuous elongate interlocking separable rib and groove elements along confronting faces of the walls adjacent the top of the bag with the rib and groove elements being interlockable by the application of closing pressure and having frictional surface means at their outer surface for applying local forces of opposing directions parallel to the rib and groove to cause a curl in the interlocked rib and groove and to thereby cause them to separate by relatively sliding the rib and groove axially relative to each other.

REFERENCES:
patent: Re28969 (1976-09-01), Naito
patent: 3347298 (1967-10-01), Ausnit et al.
patent: 3425469 (1969-02-01), Ausnit
patent: 3532571 (1970-10-01), Ausnit
patent: 3633642 (1972-01-01), Siegel
patent: 3780781 (1973-12-01), Uramoto

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