Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Reexamination Certificate
2006-10-24
2006-10-24
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
Reexamination Certificate
active
07126878
ABSTRACT:
A Tonpilz transducer which includes a first stack of piezoceramic elements with a first plurality of electrodes connected to form a first pair of external connections. There is also a second stack of piezoceramic elements with a second plurality of electrodes connected to form a second pair of external connections, and the first and second stacks of piezoceramic elements have opposed polarizations.
REFERENCES:
patent: 4735096 (1988-04-01), Dorr
patent: 4752918 (1988-06-01), Boucher et al.
patent: 2349464 (2000-11-01), None
Bae Systems Information and Electronic Systems Integration Inc.
Long Daniel J.
Pihulic Dan
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