Leak resistant zipper

Details Leak resistant zipper Leak resistant zipper

1988-08-16

1990-01-02

Marcus, Stephen

Flexible bags

With closure

Including auxiliary means for forming leakproof closure seal

383 64, 24390, 24399, 24435, A44B 1928, A44B 1932, B65D 3316

Patent

active

048909351

ABSTRACT:
A leak resistant toothless plastic zipper is provided. The closed end of the zipper fused together and/or is secured in position by a clamp from which a gasket extends toward the open end of the zipper to engage with the zipper slider in sealing the gap that would otherwise form at the zipper closed end. A hook is provided to secure the tab of the zipper slider in sealing engagement with the gasket when the slider is at the closed end. The gasket may be disposed about the zipper elements or interposed between the elements. A bag incorporating such a zipper is also disclosed.

REFERENCES:
patent: 2321926 (1943-06-01), Marinsky et al.
patent: 2753609 (1956-07-01), Gossner
patent: 2841851 (1958-07-01), Van Amburg et al.
patent: 2869207 (1959-01-01), Bernstein

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