Utility knife

Details Utility knife Utility knife

1987-12-28

1989-09-26

Yost, Frank T.

Cutlery

Sheathed

Sliding blade

30 2, B67B 730, F41B 1302

Patent

active

048689858

ABSTRACT:
A utility knife has a handle housing within which a slide bearing a knife is mounted for longitudinal displacement. Retraction means act on the knife to move it into a protected position. Turnably mounted within the housing (10) is a friction disk (22) which extends out of the handle housing (10) on the cutting-edge side of the knife blade (16). The axis of rotation (24) of said friction disk extends substantially perpendicularly to the plane of the knife blade. A driver member acts on the friction disk which advances the slide together with the knife blade into the cutting position thereof against the force of the retraction means.

REFERENCES:
patent: 3906627 (1975-09-01), Manning
patent: 3999290 (1976-12-01), Wood
patent: 4086698 (1978-05-01), Sparks
patent: 4139939 (1979-02-01), Crooks
patent: 4523379 (1985-06-01), Osterhout et al.
patent: 4683656 (1987-08-01), Peyrot et al.
patent: 4713885 (1987-12-01), Keklak et al.

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