Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2005-11-01
2005-11-01
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S317000, C310S319000, C310S328000, C310S334000
Reexamination Certificate
active
06960867
ABSTRACT:
The invention concerns an installation with piezoelectric element for transmitting or receiving ultrasonic waves in a structure, the electrodes (8) of said element (7) being connected, as the case may be, to a powering circuit producing energizing electric signals designed to enable it to transmit ultrasonic signals in said structure (6), or to a circuit receiving electric signals transmitted by said element under an energizing ultrasound received by it from said structure, said piezoelectric element (7) being integrated in the structure. The powering or receiving circuits of said piezoelectric elements (7) consist each of a magnetic induction loop (9) likewise comprised in the structure (6) and capable of receiving from an external circuit (10, 11) or respectively transmitting thereto, electromagnetic signals.
REFERENCES:
patent: 3771772 (1973-11-01), Honda
patent: 3855847 (1974-12-01), Leschek
patent: 4380931 (1983-04-01), Frost et al.
patent: 4779452 (1988-10-01), Cohen-Tenoudji et al.
patent: 5298828 (1994-03-01), Radovanovich
patent: 6744367 (2004-06-01), Forster
patent: WO 9522065 (1995-08-01), None
Dupont Marc
Pernice Marc
Roy Elisabeth
Jackson Douglas E.
ONERA (Office National d'Etudes et de Recherches Aerospatiales)
Stites & Harbison PLLC
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