Zipper construction

Details Zipper construction Zipper construction

1977-09-14

1978-09-12

Gelak, Bernard A.

Buckles, buttons, clasps, etc.

Buckles

One-piece

24205R, 150 3, 190 41Z, 5339, 2265, A44B 1934, A44B 1900

Patent

active

041125568

ABSTRACT:
A dual zipper construction provides a double closure to discourage opening of the zippered enclosure. The zippers co-extend, one above the other, with the upper zipper closing in a direction opposite that of the lower zipper. Each zipper has its engaging surface mounted on a pair of flaps, with one flap being longer than the other. When assembled, the longer flap on the upper zipper overlies the shorter flap on the lower zipper thus offsetting the opening and closing tabs of the two zippers, facilitating closure.

REFERENCES:
patent: 2210547 (1940-08-01), Hoffman
patent: 2229216 (1941-01-01), Marinsky
patent: 2442044 (1948-05-01), Howard
patent: 2615224 (1952-10-01), Shur
patent: 2697227 (1954-12-01), Prupis
patent: 3448463 (1969-06-01), Milone

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