Utility knife

Details Utility knife Utility knife

1992-03-30

1992-09-08

Yost, Frank T.

Cutlery

Cutting tools

Traveling roller blade

30292, 30307, B26B 300

Patent

active

051447495

ABSTRACT:
A utility knife has a bolster formed at a downward angle from a body which receives a blade shield and a circular blade. A channel is formed in the body at the bolster and has an upper pair of notches and a lower pair of notches. The blade shield has a circular portion which has a diameter greater than that of the blade and a pair of resilient arms each with a tab. When the tabs are engaged with the lower pair of notches, the blade shield shields the blade, and when the tabs are engaged with the upper pair of notches, the blade is exposed.

REFERENCES:
patent: 1358973 (1920-11-01), Minareik
patent: 3802080 (1974-04-01), Peter
patent: 4432137 (1984-02-01), Okada
patent: 4884342 (1989-12-01), McNamara et al.
patent: 5101564 (1992-04-01), Melter

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