Vibratory motor

Details Vibratory motor Vibratory motor

1989-10-17

1991-06-11

Budd, Mark O.

Electricity: motive power systems

Nonmagnetic motor

310316, 310323, H01L 4108

Patent

active

050235265

ABSTRACT:
A vibratory motor is provided with a detecting member for detecting rotational speed of a rotor member and a control circuit for stopping oscillation of a stator member of the motor when the rotational speed of the rotor member becomes less than a predetermined speed. When the rotational speed of the rotor member is less than the predetermined speed, the control circuit stops oscillation of the stator member. When the stator member stops oscillating, slippage is not generated between the rotor member and the stator member and deterioration of the motor due to friction is successfully decreased.

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patent: 4371816 (1983-02-01), Wieser
patent: 4607652 (1986-08-01), Yung
patent: 4692649 (1987-09-01), Izukawa et al.
patent: 4727276 (1988-02-01), Izukawa et al.
patent: 4743788 (1988-05-01), Takagi et al.
patent: 4794294 (1988-12-01), Shimizu et al.
patent: 4914337 (1990-04-01), Takagi

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