Knife with exchangeable blades

Details Knife with exchangeable blades Knife with exchangeable blades

1978-03-14

1980-01-01

Simpson, Othell M.

Cutlery

Holders for detachable blades

Knockdown holders

30336, 30338, B26B 100

Patent

active

041809092

ABSTRACT:
A knife comprises a tension rod insertable into an opening extending through a handle, and a bolt at one end of the handle and in threaded engagement with the tension rod for retaining a replaceable blade at the other end of the handle. The tension rod comprises two elongate parallel rod portions of rigid material, one of which is provided with pins engageable with holes in the blade for retaining the blade between adjacent ends of the rod portions. These ends of the rod portions are formed with at least one wedge surface for co-operation with a corresponding wedge surface on the handle. This knife construction facilitates cleaning, requires few parts and enables the blade and the tension rod to be readily withdrawn from the handle.

REFERENCES:
patent: 430186 (1890-06-01), Johnson
patent: 1064101 (1913-06-01), Smith
patent: 1257179 (1918-02-01), Berst
patent: 1506897 (1924-09-01), Goldman
patent: 1861363 (1932-05-01), Scheuner
patent: 1874740 (1932-08-01), Green
patent: 1951393 (1934-03-01), Castroviejo
patent: 2707830 (1955-05-01), McColl
patent: 2736964 (1956-03-01), Lieberman

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