Piezoelectric-type electroacoustic transducer

Details Piezoelectric-type electroacoustic transducer Piezoelectric-type electroacoustic transducer

1972-08-18

1976-03-30

Claffy, Kathleen H.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 86, 310 95, 310 96, H04R 1700

Patent

active

039476448

ABSTRACT:
A piezoelectric-type electroacoustic transducer composed of two convex or concave piezoelectric polymer films each having electrodes on both surfaces thereof, said two polymer films being so connected to electric wiring that, when the one of the piezoelectric polymer films elongates by the action of an electric field in one direction, the other shrinks by the action of the same electric field.

REFERENCES:
patent: 2834952 (1958-05-01), Harris
patent: 2895062 (1959-07-01), Abbott
patent: 3030606 (1962-04-01), Harris
patent: 3153156 (1964-10-01), Watlington
patent: 3225226 (1965-12-01), Kawakami
patent: 3586889 (1971-06-01), Kolter
patent: 3676722 (1972-07-01), Schafft
patent: 3749948 (1973-07-01), Morris
patent: 3792204 (1974-02-01), Murayama et al.
patent: 3832580 (1974-08-01), Yamamuro et al.

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