Fastener element and concealed slide fastener

Details Fastener element and concealed slide fastener Fastener element and concealed slide fastener

2006-12-05

2008-09-23

Brittain, James R (Department: 3677)

Buckles, buttons, clasps, etc.

Zipper or required component thereof

Interlocking surface constructed from plural elements in series

C024S432000

Reexamination Certificate

active

07426772

ABSTRACT:
A fastener element for a concealed type slide fastener having a substantially U shaped section including a side edge portion mounting groove for a fastener tape, comprising: a C shaped base portion; flat first and second tape nipping portions extended substantially in parallel from respective front ends of the C shaped base portion; and a coupling portion integrated with an engaging face side on the opposite side to a tape nipping face of the second tape nipping portion, wherein the first tape nipping portion has expanded portions expanded back and forth in a coupling direction, and a front end face of the first tape nipping portion is formed wider than a front end face of the second tape nipping portion, thereby having excellent concealed property and coupling strength and capable of preventing generation of a gap between right and left fastener tapes even if pulling stress is applied.

REFERENCES:
patent: 2849774 (1958-09-01), Ryser
patent: 3153830 (1964-10-01), Morin
patent: 2005/0217086 (2005-10-01), Kusayama et al.
patent: UM-52-10483 (1977-03-01), None
patent: UM-2598345 (1999-06-01), None

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