Process of and apparatus for gapping a slide fastener

Details Process of and apparatus for gapping a slide fastener Process of and apparatus for gapping a slide fastener

1989-06-14

1990-03-27

Echols, P. W.

Metal working

Method of mechanical manufacture

Of a slide fastener

29770, 83921, B26D 106

Patent

active

049108549

ABSTRACT:
A process and apparatus is disclosed for gapping a slide fastener chain to provide an element-free zone at predetermined intervals along a respective fastener stringer. The process essentially comprises cutting a connecting string interconnecting a series of discrete coupling elements secured by sewn seams to a support tape and simultaneously cutting a predetermined member of coupling elements, or alternatively cutting the string and arresting part of the coupling elements, followed by cutting the latter, so as to provide element-free tape zones with the sewn substantially in the form of an arch.

REFERENCES:
patent: 3812573 (1974-05-01), Fukuroi
patent: 3958319 (1976-05-01), Takamatsu
patent: 4019240 (1977-04-01), MacFee
patent: 4091532 (1978-05-01), MacFee
patent: 4131223 (1978-12-01), Aureli
patent: 4206544 (1980-06-01), Shimai
patent: 4206669 (1980-06-01), Fisher et al.
patent: 4241489 (1980-12-01), Manning
patent: 4274191 (1981-06-01), Ervin et al.
patent: 4324033 (1982-04-01), MacFee
patent: 4325185 (1982-04-01), Kanzaka
patent: 4625382 (1986-12-01), Shirakawa et al.

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