Ergonomic utility knife

Details Ergonomic utility knife Ergonomic utility knife

1987-03-10

1989-04-04

Watts, Douglas D.

Cutlery

Holders for detachable blades

30330, B65B 100

Patent

active

048172847

ABSTRACT:
A utility knife having a handle with a shaft portion and a lower protrusion for improved ergonomics is disclosed. The shaft portion has a bore for receiving a collet and the knife includes a central knob for cooperating with the collet to clamp a blade into the collet when the knob is rotated in a first direction and to move the collet axially out from the handle, thereby freeing the blade, when the knob is rotated in the other direction.

REFERENCES:
patent: 3934591 (1976-01-01), Gleason

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