Ultrasonic motor using bending, longitudinal and torsional vibra

Details Ultrasonic motor using bending, longitudinal and torsional vibra Ultrasonic motor using bending, longitudinal and torsional vibra

1986-02-21

1987-02-10

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, 310333, H01L 4108

Patent

active

046425098

ABSTRACT:
An ultrasonic motor having a cantilever type longitudinal/torsional vibration coupling element with a beam and a rotor rotated by the vibration of the beam. The rotor is provided with contacting surface for only contacting the beam in the outer peripheral portion of the surface of the beam away from the torsional vibration axis of the beam.

REFERENCES:
patent: 4210837 (1980-07-01), Vasiliev et al.
patent: 4325264 (1982-04-01), Sashida
patent: 4562374 (1985-12-01), Sashida

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