Cavity forming in plastic body

Details Cavity forming in plastic body Cavity forming in plastic body

1991-06-14

1992-09-22

Kisliuk, Bruce M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51124L, 51125, 51284R, B24B 1300

Patent

active

051486326

ABSTRACT:
An apparatus and method for forming a cavity in a rigid, organic plastic body comprises an abrading tool mounted on a carrier, an air spindle for imparting a rotary motion to the tool, and a second air spindle on which the tool carrier is mounted and which has a force applied to it to move the tool through an arc that passes through the plastic body.

REFERENCES:
patent: 1171174 (1916-02-01), Corry
patent: 1659277 (1928-02-01), Maynard
patent: 1671027 (1928-05-01), George
patent: 1681249 (1928-08-01), Mulholland
patent: 1871123 (1932-08-01), Laabs
patent: 2087687 (1937-07-01), Houchin
patent: 2975565 (1961-03-01), Phillips
patent: 4852436 (1989-08-01), Benjamin
patent: 4869626 (1989-09-01), Kosmowski
patent: 4974368 (1990-12-01), Miyamoto et al.

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