Utility knife with improved slide

Details Utility knife with improved slide Utility knife with improved slide

1994-06-10

1995-04-18

Payer, Hwei Siu

Cutlery

Sheathed

Sliding blade

30335, B26B 108

Patent

active

054067073

ABSTRACT:
A utility knife has a handle providing a cavity and an opening at one end, and a slide seated in the cavity for sliding movement relative to the opening. Supported on the slide is a knife blade which moves therewith between a position within the cavity and a position projecting outwardly of the opening. The blade has a cutting edge extending along its lower edge, and the slide has a side wall against which the blade is disposed and a base wall upon which a portion of the cutting edge is disposed. The slide has a cam portion configured to produce a horizontal force component on the cutting edge portion of the blade when the cutting edge cuts into the base wall as a result of the cutting force applied by the user on the outwardly projecting blade.

REFERENCES:
patent: 3192624 (1965-07-01), Gringer
patent: 4109380 (1978-08-01), Anderson
patent: 4509260 (1985-04-01), Gringer
patent: 4517741 (1985-05-01), Castelluzzo
patent: 4586256 (1986-05-01), Weimann
patent: 4663845 (1987-05-01), Weimann
patent: 4761882 (1988-08-01), Silverstein
patent: 4939839 (1990-07-01), Gorst
patent: 5054198 (1991-10-01), Gmoch
patent: 5093994 (1992-03-01), Karas
patent: 5099578 (1992-03-01), Jan

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