Stretchable slide fastener

Details Stretchable slide fastener Stretchable slide fastener

A - Human Necessities

44

B

24/47, 139/58

A44B 19/34 (2006.01)

Patent

CA 1310477

ABSTRACT OF THE DISCLOSURE A stretchable slide fastener includes a pair of stretchable stringer tapes each having a longitudinal edge, and a row of coupling elements mounted on the longitudinal edge at a pitch. The pitch of the row of coupling elements is variable as the longitudinal edge is stretched. Each of the coupling elements includes a coupling head having a height, and at least the longitudinal edge being longitudinally stretchable by at least 10 % such that the pitch of the coupling elements remains smaller than an interval which is twice the height of the coupling head.

567833

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