Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1978-01-05
1980-01-08
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51128, 51267, 51272, 51377, 403348, B24B 900
Patent
active
041826159
ABSTRACT:
A dental model trimmer having an easily replaceable abrasive surfaced member. The abrasive surfaced member is contained within a housing and is releasably coupled onto a back plate assembly which is driven by a drive motor. The housing includes a releasably coupled cover plate providing access to the abrasive surfaced member. An opening formed in the cover plate exposes a portion of the abrasive surface so that a dental model workpiece can be inserted into the opening against the abrasive surface to permit work on the dental model workpiece. A tilting work table beneath the opening supports the workpiece during the operation. A stream of water is directed through the front cover onto the abrasive surface and is redirected against this surface by means of baffles positioned inside the cover plate. The opening includes a beveled boundary and an inwardly directed lip permitting angular manipulation of the workpiece, better visibility of the workpiece and maximum safety.
REFERENCES:
patent: 2449459 (1948-09-01), Eckert
patent: 2781618 (1957-02-01), Larson
patent: 3064400 (1962-11-01), Johnson
patent: 3481086 (1969-12-01), Paterson
patent: 3574978 (1971-04-01), Block
patent: 3603040 (1971-09-01), Paterson
patent: 3650553 (1972-03-01), Wennstrom
patent: 3808746 (1974-05-01), Knecht
patent: 3936981 (1976-02-01), White
IPCO Hospital Supply Corporation
Olszewski Robert P.
Whitehead Harold D.
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