Folding knife with thumb release opening

Details Folding knife with thumb release opening Folding knife with thumb release opening

2011-04-05

2011-04-05

Ashley, Boyer D (Department: 3724)

Cutlery

Sheathed

Pivoted blade

C030S160000, C030S161000

Reexamination Certificate

active

07918028

ABSTRACT:
A folding knife with thumb release opening includes a knife blade, a first liner plate, a second liner plate, a first handle plate and a second handle plate. The knife blade includes a cutting edge and a point formed on a first end. A second end of the knife blade is pivotally retained by a first end of first and second liner plates. A push button is retained in the knife blade. A liner lock is formed in the second liner plate. A lock pin is pressed into an end of the liner lock and a lock hole is formed in the second end of the knife blade to receive the lock pin. The first and second handle plates cover the first and second liner plates. The push button may be replaced with a thumb disc. A second embodiment includes spring assisted opening and a third embodiment includes automatic opening.

REFERENCES:
patent: 4535539 (1985-08-01), Friedman et al.
patent: 4979301 (1990-12-01), Walker
patent: 5293690 (1994-03-01), Cassady
patent: 6957491 (2005-10-01), Van Deursen et al.
patent: 7278213 (2007-10-01), Pardue et al.
patent: 7293360 (2007-11-01), Steigerwalt et al.
patent: 7543386 (2009-06-01), Sullivan
patent: 7578064 (2009-08-01), Busse
patent: RE41259 (2010-04-01), McHenry et al.
patent: 7748122 (2010-07-01), Duey
patent: 2005/0229401 (2005-10-01), Onion
Photographs of knife shown at trade show and sold in 2005.

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