Self sharpening cutting element

Details Self sharpening cutting element Self sharpening cutting element

1990-01-29

1990-12-04

Watts, Douglas D.

Cutlery

Combined cutlery or combined with ancillary feature

With sharpening feature

30 36, 51205R, 51214, B26B 300, B24B 3300, B24D 300

Patent

active

049743228

ABSTRACT:
A cutting element comprises at least one cutting member, a handle arranged for holding the cutting member, and a casing surrounding the cutting member so that in an operative position a cutting blade of the cutting member is exposed while in an inoperative position it is confined in the casing, the casing being movable relative to the cutting member so as to sharpen the blade of the cutting member.

REFERENCES:
patent: 2291128 (1942-07-01), Yarrow
patent: 2416929 (1947-03-01), Kjorsvik
patent: 2721428 (1955-10-01), Sheets et al.
patent: 2791831 (1957-05-01), Hollis
patent: 3846909 (1974-11-01), Clarke
patent: 4041651 (1977-08-01), Bayly
patent: 4862590 (1989-09-01), Winyard et al.

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