Circular knife and method of making same

Details Circular knife and method of making same Circular knife and method of making same

1986-10-21

1987-11-17

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

76112, B21K 512

Patent

active

047065249

ABSTRACT:
An improvement in the structure of a circular knife including a novel method of making its peripheral cutting edges by reducing the number of operations required to produce the knife. Previously, as presently known, the peripheral cutting edges of circular knives involves the expense of individually cutting material out of a peripheral area as compared to the unique method of the subject disclosure which simultaneously shears and forms offset portions and radial portions, and wherein the outer knife ends of these portions are simutlaneously sharpened by a common bevel which causes the edges of the sharpened ends of the offset portions to be inset with reference to the sharpened ends of the radial portions. These two significant factors in the manfacture of circular knives constitute a meritorious advance in the art.

REFERENCES:
patent: 1345045 (1920-06-01), Waters
patent: 2531841 (1950-11-01), Cashin
patent: 4167132 (1979-09-01), Zontelli

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