Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1978-07-03
1980-02-26
Peshock, Robert
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
279 1G, 433134, A61C 112
Patent
active
041898362
ABSTRACT:
A cartridge-type chuck for use in a dental handpiece wherein a substantially cylindrical cartridge case incorporates within itself at least a friction-type chuck body and a stopper provided with a square hole of a smaller diameter than the inner diameter of said chuck body, said cartridge case being formed at its front part into truncated cone by tapering the outer circumferential surface and is provided at its thickened rear part with a threaded interface on the circumference, is disclosed. This cartridge-type chuck is able to be loaded and unloaded for the purpose of replacing it with ease in relation to the rotor disposed in the inside of a dental hand-piece, into which the dental cutting tool can be inserted by a single step, and whose holding power is strong enough to be free from occurrence of the center whirling of the spindle of said cutting tool.
REFERENCES:
patent: 3324553 (1967-06-01), Borden
patent: 3325899 (1967-06-01), Staunt
patent: 3962789 (1976-06-01), Flatland
Ogawa Haruo
Sugai Hiroshi
Kabushiki Kaisha Morita Seisakusho
Peshock Robert
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