Zipper for reclosable thermoplastic bag

Details Zipper for reclosable thermoplastic bag Zipper for reclosable thermoplastic bag

1991-05-13

1992-08-18

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Separable-fastener or required component thereof

Each mating member having similarly shaped, sized, and...

24403, 383 63, A44B 1900, B65D 3300

Patent

active

051387506

ABSTRACT:
A zipper closure for a reclosable thermoplastic bag includes two opposing interlockable rib and groove profiles, wherein at least a part of one or both of the profiles is divided into segments of materials having different elastic moduli. The zipper provides an audibly and/or tactilely perceptible indication of proper interlocking of the profiles.

REFERENCES:
patent: 1963813 (1934-06-01), Van Voorhis
patent: 2091617 (1937-08-01), Sundback
patent: 2557163 (1951-06-01), Williams
patent: 3371696 (1968-03-01), Ausnit
patent: 3440696 (1969-04-01), Staller
patent: 4502190 (1985-03-01), Inamura
patent: 4796300 (1989-01-01), Branson
patent: 4821381 (1989-04-01), Kaneko et al.
patent: 4854017 (1989-08-01), Kamp
patent: 4941238 (1990-07-01), Clark

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