Folding blade knife

Details Folding blade knife Folding blade knife

1986-10-22

1988-06-14

Bell, Paul A.

Cutlery

Sheathed

Pivoted blade

B26B 104

Patent

active

047502673

ABSTRACT:
A folding blade knife is disclosed in which the knife blade is releasably lockable in a plurality of angular positions relative to a knife handle. The folding knife blade has a polygonal aperture and the knife handle has a circular opening as well as an aligned polygonal recess. A one piece lock and release element operated by push button action includes a cylindrical part engaging in the circular opening of the handle and a polygonal part engageable totally in the polygonal aperture of the blade or partly in such aperture and partly in the polygonal recess of the handle. A spring biases the one piece lock and release element toward a locking position relative to the blade and handle.

REFERENCES:
patent: 900339 (1908-10-01), Woodruff
patent: 2183901 (1939-12-01), Weaver
patent: 3942249 (1976-03-01), Poehlmann
patent: 4170061 (1979-10-01), Henry
patent: 4272887 (1981-06-01), Poehlmann
patent: 4404748 (1983-09-01), Wiethoff
patent: 4541175 (1985-09-01), Boyd et al.

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