Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1992-10-30
1994-04-05
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310321, 310323, H01L 4108
Patent
active
053008510
ABSTRACT:
In a linear-type actuator where an elastic wave is excited upon the vibrator composed of a rod shaped elastic member and a piezo member so as to drive the moving member bought into pressure contact upon the vibrator, the present invention provides a linear-type actuator where the improvement of the driving efficiency and the simplification of the driving circuit can be achieved by the new driving principle.
REFERENCES:
patent: 4727278 (1988-02-01), Staufenberg et al.
patent: 4857793 (1989-08-01), Okuno
patent: 5134334 (1992-07-01), Onishi et al.
patent: 5182484 (1993-01-01), Culp
Kawasaki Osamu
Nishikura Takahiro
Sumihara Masanori
Takeda Katsu
Budd Mark O.
Dougherty Thomas M.
Matsushita Electric - Industrial Co., Ltd.
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