Slide fastener and method of making same

Details Slide fastener and method of making same Slide fastener and method of making same

1980-02-29

1981-09-22

Frazier, Roy D.

Buckles, buttons, clasps, etc.

Buckles

One-piece

2420513R, A44B 1940

Patent

active

042901766

ABSTRACT:
A method of and an apparatus for the formation of slide-fastener stringers wherein coupling members of a thermoplastic synthetic resin are bent into a U configuration to straddle the edges of respective fabric support tapes also composed of thermoplastic synthetic-resin filaments or yarns at least in the region in which the tape is straddled by the shanks of each coupling member. The shanks of the coupling members are thermally welded together through the tape and thereby also bonded to the filaments or yarn between the shanks; thereafter the tapes bearing the coupling members are subjected to thermofixing i.e. heating to shrink the tapes thereby condensing the meshes formed by the yarn or filaments.

REFERENCES:
patent: 3436041 (1969-04-01), Haller
patent: 3482290 (1969-12-01), Uhrig
patent: 3883381 (1975-05-01), Thaeler
patent: 3900929 (1975-08-01), Takamatsu
patent: 3977053 (1976-08-01), Takamatsu
patent: 3984901 (1976-10-01), Takamatsu
patent: 4186467 (1980-02-01), Lawrence 24
patent: 4210985 (1980-07-01), Scott

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