Device for sharpening knives

Details Device for sharpening knives Device for sharpening knives

1987-01-28

1988-02-09

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51128, 51208, 51210, B24B 904

Patent

active

047233753

ABSTRACT:
A device for sharpening knives, comprising a frame and a grinding element rotatably mounted in the frame. The grinding element is provided with two cone-shaped grinding surfaces turned towards each other. The cone angle of the grinding surfaces varies in the peripheral direction of the grinding element, with at least one portion with a small cone angle having a rougher surface than the portion having a wide cone angle.

REFERENCES:
patent: 1342275 (1920-06-01), Cornell
patent: 1360998 (1920-12-01), Barber
patent: 2799125 (1957-07-01), Dicke
patent: 2898709 (1959-08-01), Bednarski
patent: 3332173 (1967-07-01), McMaster et al.
patent: 3461616 (1969-08-01), Nissen et al.
patent: 3909985 (1975-10-01), Knecht
patent: 4050197 (1977-09-01), Thompson et al.

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