Stretchable slide fastener

Details Stretchable slide fastener Stretchable slide fastener

1988-05-24

1990-05-15

Cranmer, Laurie K.

Buckles, buttons, clasps, etc.

Zipper or required component thereof

Having coiled or bent continuous wire interlocking surface

24393, 66190, 66202, 139384B, A44B 1912

Patent

active

049245600

ABSTRACT:
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.

REFERENCES:
patent: 4047402 (1977-09-01), Matsuda et al.
patent: 4067208 (1978-01-01), Heimberger
patent: 4492098 (1985-01-01), Heimberger

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