Air bearing for a dental handpiece

Details Air bearing for a dental handpiece Air bearing for a dental handpiece

1978-03-08

1980-06-24

Mancene, Louis G.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

A61C 112

Patent

active

042092930

ABSTRACT:
This invention relates to a driving mechanism of an air bearing journaled handpiece for dental treatment, the mechanism being improved in that even when a load contrary to the direction of rotation of a tool shaft such as cutting of the teeth acts upon the tool shaft in a dental operation, rotation of the tool shaft does not stop because of load resistance but enables the heretofore, unmaterialized medium-speed cutting (hereinafter referred to as "extension to medium-speed rotation") and makes it possible to obtain improved torque during high-speed rotation in addition to the extension to medium-speed rotation.

REFERENCES:
patent: 3055112 (1962-09-01), Borden
patent: 3384344 (1968-05-01), Ota
patent: 3408043 (1968-10-01), Williams et al.
patent: 3962789 (1976-06-01), Flatland

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