Ultrasonic motor

Details Ultrasonic motor Ultrasonic motor

1994-09-09

1995-05-16

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310328, H01L 4108

Patent

active

054163757

ABSTRACT:
An ultrasonic motor comprising an elastic body, at least two laminated piezoelectric bodies clamped by a portion of the elastic body, an ultrasonic oscillator for exciting simultaneously a plurality of shrunk and retreated oscillation modes on the elastic body, to generate ultrasonic elliptic oscillation, and an element to be driven urged against a portion of the ultrasonic oscillator and movable with respect to the ultrasonic oscillator.

REFERENCES:
patent: 3902084 (1975-08-01), May, Jr.
patent: 5001404 (1991-03-01), Kataoka
patent: 5062622 (1991-11-01), Kataoka
patent: 5073739 (1991-12-01), Iijima et al.
patent: 5101132 (1992-03-01), Yamaguchi
patent: 5105117 (1992-04-01), Yamaguchi
patent: 5136200 (1992-08-01), Takizawa et al.
patent: 5140215 (1992-08-01), Yamaguchi
patent: 5198714 (1993-03-01), Salomon et al.
patent: 5200665 (1993-04-01), Iijima et al.
patent: 5233258 (1993-08-01), Myoga et al.

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