Separable slide fastener chain and a method of producing the sam

Details Separable slide fastener chain and a method of producing the sam Separable slide fastener chain and a method of producing the sam

1979-10-09

1980-12-16

Frazier, Roy D.

Buckles, buttons, clasps, etc.

Buckles

One-piece

156 66, A44B 1936

Patent

active

042388724

ABSTRACT:
A separable slide fastener chain comprises a pair of oppositely disposed stringers of continuous length each having a support tape and a fastener element formed from a plastic monofilament into a continuous structure secured by sewn seams to a longitudinal inner edge of the respective tape. The fastener element is fused together over a predetermined length of the two coupled stringers at predetermined intervals. A composite pin-forming structure is located centrally of the fused length of the fastener element and cut out to produce a multi-form aperture having a pair of bay portions extending transversely of the fastener chain and oppositely disposed in point-symmetry relation and a pair of elongated canal portions extending longitudinally closely along the sewn seams. The composite structure is subdivisible across the bay portions into two identical pairs of slider-lock pin members and inserting pin members.

REFERENCES:
patent: Re25935 (1965-12-01), Porepp
patent: 3263291 (1966-08-01), Taylor
patent: 3353233 (1967-11-01), Frolich
patent: 3490970 (1970-01-01), Heimberger
patent: 3510379 (1970-05-01), Heimberger
patent: 3554822 (1971-01-01), Schwarzkopf
patent: 3892017 (1975-07-01), Watson
patent: 3895418 (1975-07-01), Ebata
patent: 3999255 (1976-12-01), Warburton et al.

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