Protruding end stops for plastic reclosable fastener

Details Protruding end stops for plastic reclosable fastener Protruding end stops for plastic reclosable fastener

1991-03-22

1992-07-21

Cranmer, Laurie K.

Buckles, buttons, clasps, etc.

Zipper or required component thereof

Including means for obstructing movement of slider

156 66, 24400, A44B 1916

Patent

active

051311216

ABSTRACT:
A thermoplastic bag having a zipper that is operated by a slider is provided with end stops that are integral with the ends of the zipper and prevent the slider from going off past the end of the zipper and coming off the bag. There is also disclosed a method for forming these end stops by ultrasonically smashing the ends of the zipper.

REFERENCES:
patent: 2715759 (1955-08-01), Poux
patent: 3259951 (1964-07-01), Zimmerman
patent: 3790992 (1974-02-01), Herz
patent: 3962007 (1976-06-01), Heimberger
patent: 4787755 (1988-11-01), Branson
patent: 4812192 (1989-03-01), Woods et al.
patent: 4890935 (1990-01-01), Ausnit et al.
patent: 4957571 (1990-09-01), Cipolla
patent: 5036643 (1991-08-01), Bodolay

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