Slide fastener with improved clamps and method of manufacture

Details Slide fastener with improved clamps and method of manufacture Slide fastener with improved clamps and method of manufacture

A - Human Necessities

44

B

26/168, 24/49

A44B 19/32 (2006.01)

Patent

CA 1151404

ABSTRACT OF THE DISCLOSURE In a slide fastener employing coupling elements secured within folds of supporting tapes by clamps secured over the folds, clamp legs are formed with raised land areas and lips for cooperating with flange edges and upper surfaces of bases of the elements, and the inside surfaces of heels of the clamps are formed flat for cooperating with bottom surfaces of the elements to accurately position the elements relative to the clamps. Reduced thickness of the junctions between legs and heels relative to the thickness of central portions of the legs and heels produces corners receiving displaced tape material from between the raised land areas of the legs and the outer edges of flanges of the coupling element as well as from between the bottom surfaces of the bases of the coupling elements and the flat inner surfaces of the heels.

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