Curved slide fastener chain and method for producing curved slid

Details Curved slide fastener chain and method for producing curved slid Curved slide fastener chain and method for producing curved slid

1983-11-29

1986-08-26

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Of a slide fastener

B21D 5350

Patent

active

046074252

ABSTRACT:
A curved slide fastener chain and a method for producing a curved slide fastener are disclosed. The curved slide fastener chain comprises a pair of fastener tapes and a plurality of fastener element rows planted on each of a pair of the fastener tapes. Each of the element rows includes a straight and a curved inter-engagement portion. The curved inter-engagement portions are dis-inter-engaged while the straight inter-engagement portions are inter-engaged, so that each of the pair of fastener tapes are able to extend in a straight line. Therefore, deformation of the curved inter-engagement portions due to heat and tension applied thereto during the washing, dewatering and drying steps in producing a curved slide fastener can be prevented.

REFERENCES:
patent: 2511414 (1950-06-01), Poux
patent: 2623214 (1952-12-01), Yaffe
patent: 2697227 (1954-12-01), Prupis

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