Ultrasonic actuator

Details Ultrasonic actuator Ultrasonic actuator

2007-01-09

2010-02-16

Benson, Walter (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323090, C310S355000

Reexamination Certificate

active

07663292

ABSTRACT:
An ultrasonic actuator includes: a piezoelectric element10producing stretching and bending vibrations; driver elements2, 2placed on the piezoelectric element10so as to be actuated in accordance with the vibrations of the piezoelectric element10, thereby outputting a driving force; a case12for supporting the piezoelectric element 10; and wall-surface supporters6A and6B, top-surface supporters7A and7B and a bottom-surface supporting part8all placed between the case12and the piezoelectric element10to previously apply compressive forces to non-node parts of the vibrations of the piezoelectric element10along the directions of the vibrations.

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patent: 2005-094956 (2005-04-01), None
Matbase, “Silicone Rubber”, 2007.
Memsnet, “Material: Lead Zirconate Titanate (PZT)”, no date information.

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