Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-06-10
1988-09-27
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51102, 51128, 51238R, B24B 700
Patent
active
047731869
ABSTRACT:
A portable polishing unit for dental instruments is characterized by comprising a base member; a motor mounted thereon and driven by a dry cell; a rotary grindstone assembly fixed to the motor through a grindstone rod of a round shape and including a grindstone disc positioned in opposition to the motor, having a diameter larger than that of the grindstone rod and planar on its end face; a supporting member mounted on the base member at a position adjacent to the side of the grindstone disc which does not face the motor, and having a plane face extending in parallel with the upper face of the base member and having a length larger than the diameter of the grindstone disc; and a supporting plate mounted on the base member in the vicinity of the side edge of the supporting member, the supporting plate including a groove for supporting the root of working means extending from a grip of a dental instrument.
REFERENCES:
patent: 328256 (1885-08-01), Scott
patent: 483042 (1892-09-01), Brown
patent: 2297306 (1942-09-01), Kousin
patent: 2435642 (1948-02-01), Bates
patent: 2578309 (1951-12-01), Kroczek
patent: 2663976 (1953-12-01), Jacoby
patent: 3084486 (1963-04-01), Orciani
Cruz Lawrence
G-C Dental Industrial Corp.
Schmidt Frederick R.
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