Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-06-21
2011-06-21
Rosenau, Derek J (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S320000
Reexamination Certificate
active
07965019
ABSTRACT:
A device includes at least one piezoacoustic resonator element (21-29) having at least one piezoelectric layer (21a-29a) and two electrodes (21b-29b,21c-29c) applied to the piezoelectric layer (21a-29a). The piezoacoustic resonator element (21-29) is configured in such a manner that, when a voltage is applied to the piezoelectric layer (21a-29a) by electrodes (21b-29b,21c-29c), a bulk wave of the piezoelectric layer (21a-29a) is induced with a resonant frequency. The device also includes a heating device with a heating element (211-219), integrated into the piezoacoustic resonator element (21-29), for controlling the working temperature of the device.
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Rosenau Derek J
Siemens Aktiengesellschaft
Young & Thompson
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