Safety device for utility knives and the like

Details Safety device for utility knives and the like Safety device for utility knives and the like

1989-07-17

1991-01-29

Watts, Douglas D.

Cutlery

Cutting tools

With guard and/or guide

30289, B26B 2900

Patent

active

049876821

ABSTRACT:
A safety attachment for a knife has a yoke member adapted to at least partially encircle the body of the knife a short distance behind the blade. A substantially planar guard plate is hingedly attached to the yoke member to freely swing about an axis located at or below the knife body. In a cutting position, the guard plate extends rearwardly from the axis and the blade, skimming the top of the workpiece. Upon contact with a sizable obstruction, the guard plate pivots about the obstruction to a guard position wherein the guard plate forms a solid barrier between the cutting edge of the knife blade and the obstruction, thereby preventing contact between the obstruction and the knife blade.

REFERENCES:
patent: 1299084 (1919-04-01), Wilson
patent: 1574641 (1926-02-01), Christopherson
patent: 2376887 (1945-05-01), Walters
patent: 2387032 (1945-10-01), Lowry
patent: 2901824 (1959-09-01), Zullo
patent: 3781988 (1974-01-01), Jones
patent: 4086698 (1978-05-01), Sparks
patent: 4091537 (1978-05-01), Stevenson, Jr.
patent: 4531286 (1985-07-01), Vito et al.
patent: 4587735 (1986-05-01), Walters et al.
patent: 4607432 (1986-08-01), Montgomery
patent: 4675996 (1987-06-01), DuBuque

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