Ultrasonic oscillator and ultrasonic motor using the same

Details Ultrasonic oscillator and ultrasonic motor using the same Ultrasonic oscillator and ultrasonic motor using the same

1991-01-04

1992-11-10

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310325, 310328, H01L 4108

Patent

active

051626926

ABSTRACT:
Disclosed is an ultrasonic oscillator comprising piezoelectric elements and a resonator fixed thereto and having one or more inclined surfaces, elliptical oscillations being generated at the front end of the resonator. Also disclosed is an ultrasonic motor utilizing this oscillator and adapted to rotate a rotatably supported rotor by pressing it with an appropriate pressurizing force against the section where the elliptical oscillations are generated.

REFERENCES:
patent: 4249100 (1981-02-01), Vasiliev et al.
patent: 4400641 (1983-08-01), Vishnevsky et al.
patent: 4453103 (1984-06-01), Vishnevsky et al.
patent: 4634916 (1987-01-01), Okada et al.
patent: 4663556 (1987-05-01), Kumada
patent: 4697117 (1987-09-01), Mishiro
patent: 4893046 (1990-01-01), Honda
patent: 4933590 (1990-06-01), Inoue et al.

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