Motor device utilizing ultrasonic oscillation

Details Motor device utilizing ultrasonic oscillation Motor device utilizing ultrasonic oscillation

1984-05-16

1985-12-31

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310323, H01L 4108

Patent

active

045623740

ABSTRACT:
A motor device utilizing ultrasonic oscillation, which comprises an ultrasonic oscillator including an elastic body and one or more piezoelectric, electrostriction or magnetostriction elements assembled in or on the elastic body, and a movable body movable in a fixed direction. A portion of the ultrasonic oscillator and a portion of the movable body are held pressed against each other. A progressive wave, which is generated on the surface of the elastic member and constituted by a longitudinal wave and a transverse wave, is converted to a uni-directional motion of the movable body.

REFERENCES:
patent: 4400641 (1983-08-01), Vishnevsky et al.
patent: 4484099 (1984-11-01), Kawai et al.
patent: 4495432 (1985-01-01), Katsuma et al.
patent: 4504790 (1985-03-01), Yamamoto et al.
patent: 4513219 (1985-04-01), Katsuma et al.
Barth, H. V., "Ultrasonic Driven Motor", IBM Tech. Disclosure Bulletin, v. 16, No. 7, Dec. 1973.

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