Knife sharpener

Details Knife sharpener Knife sharpener

1986-02-04

1988-03-22

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51221BS, 51 58, 51205R, 76 82, 76 822, 76 88, 269 3, B24B 354

Patent

active

047319534

ABSTRACT:
A knife sharpener comprises an elongated blade holder with a clamping device for holding a blade at one end of the holder with the blade extending transversely the length of the holder, a post extending from the other end of the holder perpendicular to the plane in which the blade is gripped, and an elongated sharpening element having a sharpening surface extending over part of its length and a guide slot for receiving a ball at the top of the post extending along the remainder of its length. Engagement between the ball and the guide slot with the sharpening surface contacting an edge of the blade to be sharpened establishes the sharpening angle which is maintained throughout sharpening strokes of the sharpening element. The post may be adjustable in height to adjust the sharpening angle and may be replicated on opposite sides of the holder.

REFERENCES:
patent: 272345 (1883-02-01), Stephens
patent: 961010 (1910-06-01), Poitras et al.
patent: 2504423 (1950-04-01), Johnson et al.
patent: 2557093 (1951-06-01), Garbarino
patent: 4216627 (1980-08-01), Westrom
patent: 4471951 (1984-09-01), LeVine

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