Compressed-air dental motor

Details Compressed-air dental motor Compressed-air dental motor

1979-09-07

1981-07-14

Mancene, Gene

Dentistry

Apparatus

Including activator or regulator for controller or drive

415 36, 91 59, 173 12, A61C 102

Patent

active

042784271

ABSTRACT:
A compressed-air dental motor includes a housing, a rotor, a compressed air inlet conduit supplying compressed air for placing the rotor into rotation, and a rotor shaft in the rotor connectable with a work tool, such as a drill. A valve member in the housing associated with the compressed-air inlet conduit is adapted to vary the inlet of compressed air for each unit of time, and an adjusting device is provided for controlling the valve member. The rotor shaft includes an axially displaceable component for controlling the valve member in direct mechanical dependence upon the torque at the work tool so as to form the adjusting device into a torque-dependent adjusting device.

REFERENCES:
patent: 2570009 (1951-10-01), Schmid
patent: 2725918 (1955-12-01), Deshler
patent: 2899941 (1959-08-01), Adams
patent: 3049098 (1962-08-01), Inoue
patent: 3162250 (1964-12-01), Sindelar
patent: 3253662 (1966-05-01), Sacchini
patent: 3442177 (1969-05-01), Ulbing et al.
patent: 3461975 (1969-08-01), Ulbing
patent: 3472323 (1969-10-01), Hall
patent: 3477793 (1969-11-01), Kitagawa
patent: 3578872 (1971-05-01), McBurnie

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