Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-03-28
2006-03-28
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C029S025350, C029S594000, C427S191000, C427S227000, C310S328000
Reexamination Certificate
active
07019445
ABSTRACT:
A process for fabricating a ceramic electroactive transducer of a predetermined shape is disclosed. The process comprises the steps of providing a suitably shaped core having an outer surface, attaching a first conductor to the outer surface of the core, coating an inner conductive electrode on the the outer surface of the core such that the inner conductive electrode is in electrical communication with the first conductor, coating a ceramic layer onto the inner electrode, thereafter sintering the ceramic layer, coating an outer electrode onto the sintered ceramic layer to produce an outer electrode that is not in electrical communication with the first conductor, and then poling the sintered ceramic layer across the inner electrode and the outer electrode to produce the ceramic electrode.
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International Search Report, dated Jul. 17, 2001. PCT Patent Application Serial No. PCT/US01/40534, Filed Apr. 17, 2001.
Newnham Robert E.
Zhang Jindong
Dougherty Thomas M.
Ohlandt, Greeley, Ruggiero & Perle LLP.
The Penn State Research Foundation
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