Slide fastener and method of making same

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

1979-07-10

1981-11-03

Frazier, Roy D.

Buckles, buttons, clasps, etc.

Buckles

One-piece

2420513R, 242051R, A44B 1934

Patent

active

042977703

ABSTRACT:
A slide fastener comprising a pair of tapes and respective rows of slide-fastener elements individually secured to the tapes. The slide-fastener elements are each bent over an edge of the tape and welded together thermally or ultrasonically. The arms of the fastener elements are formed along their lateral surfaces or sides with grooves of increasing depth toward the respective tape and weft yarns, interwoven with the warp of the tape, are provided along the edge and are disposed in the grooves to provide torsional stability for the individual coupling elements.

REFERENCES:
patent: 2380623 (1945-07-01), Winterhalter
patent: 3179996 (1965-04-01), Clauss
patent: 4033014 (1977-07-01), Manning
patent: 4037295 (1977-07-01), Rojahn
patent: 4080691 (1978-03-01), Moertel
patent: 4140157 (1979-02-01), Scott
patent: 4171556 (1979-10-01), Moertel

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