Ultrasonic motor

Details Ultrasonic motor Ultrasonic motor

1990-05-24

1991-10-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

050598490

ABSTRACT:
In an ultrasonic motor using a friction member having arrangements of reinforcing fibers between an driven member to be driven and a vibrating stator for generating travelling waves by the vibration of a piezoelectric element, the arrangements of the fibers are oriented in at least a predetermined direciton, such as parallel to the moving direction of the driven member.

REFERENCES:
patent: 4484099 (1984-11-01), Kawai et al.
patent: 4495432 (1985-01-01), Katsuma et al.
patent: 4562373 (1985-12-01), Tokusima et al.
patent: 4634916 (1987-01-01), Okada et al.
patent: 4739212 (1988-04-01), Imasaka et al.
patent: 4939404 (1990-07-01), Inagaki et al.
patent: 4963781 (1990-10-01), Sumihara et al.

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