Ultrasonic wave motor

Details Ultrasonic wave motor Ultrasonic wave motor

1994-11-07

1995-08-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

054463319

ABSTRACT:
An ultrasonic wave motor comprises a vibration member for generating a travelling vibration wave, a movable body to be driven by the vibration member, and a pressing mechanism having a spring member which abuts against at least one of the vibration member and the movable body and presses the vibration member and the movable body toward each other. The spring member is formed by a resilient plate member.

REFERENCES:
patent: 4743788 (1988-05-01), Takagi et al.
patent: 4743791 (1988-05-01), Kawai
patent: 4871937 (1989-10-01), Kawai
patent: 4914722 (1990-04-01), Holden et al.
patent: 5264753 (1993-11-01), Mukohjima et al.

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