Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-01-17
2006-01-17
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S331000
Reexamination Certificate
active
06987348
ABSTRACT:
A system and method of operation for a piezoelectric transducer is described which utilizes a mesa structure interposed between a piezoelectric material element and a chamber diaphragm. The system can be used as a sensor where a net motion to the diaphragm causes a net charge equal to the sum of the charges on each piezoelectric diaphragm. Alternatively, the system can be used as an actuator wherein an applied voltage causes movement of the piezoelectric transducer and the chamber diaphragm.
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European Search Report for EPO Counterpart Application No. EP 03 028 768.4 Jul. 14, 2004.
Andrews John R.
Buhler Steven A.
Burke Cathie J.
Fitch John S.
Littau Karl A.
Addison Karen B.
McBain Nola Mae
Palo Alto Research Center Inc.
Schuberg Darren
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