Process and apparatus for providing cutting edges

Details Process and apparatus for providing cutting edges Process and apparatus for providing cutting edges

1987-06-17

1989-02-28

Olszewski, Robert P.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51 80BS, 76 86, 76DIG9, B24B 348

Patent

active

048074012

ABSTRACT:
Novel methods and apparatus for providing a facet on opposed surfaces of a cutting instrument such as a razor blade or the like. Essentially, the methods and apparatus are designed to initially abrade opposed surface portions of the instrument concurrently with a relatively high degree of coarseness at a relatively low included angle and thereafter concurrently abrading the opposed surface portions with progressively decreasing degrees of coarseness at progressively increasing included angles. The facets provided by the methods and apparatus on the opposed surfaces of the instrument have a surface in which the included angle decreases as the distance from the edge of the instrument increases.

REFERENCES:
patent: 1734494 (1929-11-01), Kohlmiller
patent: 1828663 (1931-10-01), Jopp
patent: 1941501 (1934-01-01), Steiner
patent: 3461616 (1969-08-01), Nissen et al.
patent: 3494081 (1970-02-01), Taylor et al.
patent: 4265055 (1981-05-01), Cartwright et al.
patent: 4608782 (1986-09-01), Chylinski
patent: 4723375 (1988-02-01), Linden

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