Precision actuator

Details Precision actuator Precision actuator

1990-11-20

1991-10-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310323, 310 83, H01L 4108

Patent

active

050536702

ABSTRACT:
A precision actuator includes a housing; an ultrasonic motor disposed in the housing and having a ring-like rotor and a stator; an output shaft; a rotation-restraint rectilinear motion guide for coupling the output shaft to the housing, slidably in an axial direction but unrotatably relative to it; and a screw mechanism for coupling the output shaft to the rotor.

REFERENCES:
patent: 4723086 (1988-02-01), Leibovich et al.
patent: 4734610 (1988-03-01), Okumura et al.
patent: 4793689 (1988-12-01), Aoyagi et al.
patent: 4893047 (1990-01-01), Honda
patent: 4935659 (1990-06-01), Naka et al.

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