Spring fastener with highly improved removal to insertion ratio

Details Spring fastener with highly improved removal to insertion ratio Spring fastener with highly improved removal to insertion ratio

2005-07-12

2008-09-30

Sandy, Robert J. (Department: 3677)

Buckles, buttons, clasps, etc.

Trim molding fastener

Resilient metal type

C024S289000, C024S293000, C024S458000, C411S508000

Reexamination Certificate

active

07428770

ABSTRACT:
A spring fastener, which comprises two engagement springs in opposite sides of the fastener. Each engagement spring has an engagement portion comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio when the engagement portion does not have the hindrance portion, thus permitting very easy insertion into, with considerably more difficult removal of the fastener from the slot of a panel.

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