Composite cutting blade and method of making the blade

Details Composite cutting blade and method of making the blade Composite cutting blade and method of making the blade

1989-01-13

1990-01-30

Watts, Douglas D.

Cutlery

Blades

Detachable cutting edge

30161, 76104R, B26B 900, B26B 306, B21K 1100

Patent

active

048964247

ABSTRACT:
A new composite cutting blade for a knife or other cutting instrument and a novel method of making the blade. The blade is formed from a body section made of a strong tough material formed with a dovetail configuration along one edge thereof and a cutting edge section made of a hard durable material that has a matching dovetail configuraion along one edge. The body and cutting edge sections are joined by press fitting the two dovetail edges together and then peening the joint. The blade is provided with a recess so that when the blade is rotated into the handle that includes a unique locking means, the blade is retained in a closed position. The handle includes a liner that has a spring finger which engages the tang of the blade to lock the blade in an open position. The spring finger also has a ball detent mounted thereon that engages the recess in the blade when the blade is in a closed position so as to retain the blade in a tightly closed position.

REFERENCES:
patent: 996235 (1911-06-01), Fuller
patent: 1956588 (1934-05-01), Parker et al.
patent: 2093874 (1937-09-01), Stargardter
patent: 2497482 (1950-02-01), Wilson

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