Utility knife with retracting shield

Details Utility knife with retracting shield Utility knife with retracting shield

2006-01-10

2006-01-10

Watts, Douglas D. (Department: 3724)

Cutlery

Cutting tools

With guard and/or guide

C030S002000

Reexamination Certificate

active

06983541

ABSTRACT:
A utility knife has a handle and a replaceable blade fixed to the handle. The blade has a cutting edge extending from the handle along an axis for a distance. The utility knife includes a movement mechanism, which may be at least partially enclosed by the handle. The movement mechanism is adapted to provide reversible motion along relative to the blade. A shield is connected to the movement mechanism and disposed adjacent to the blade, whereby the shield is movable between an extended position covering the cutting edge and a retracted position exposing the cutting edge. When in a retracted position, the shield may be inside or closely adjacent to the handle, so as to not interfere with handling of the knife.

REFERENCES:
patent: 3906625 (1975-09-01), Gringer
patent: 4757612 (1988-07-01), Peyrot
patent: 5241750 (1993-09-01), Chomiak
patent: 6233832 (2001-05-01), Berns
patent: 6330749 (2001-12-01), Khachatoorian et al.

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