Piezoelectric transducer

Details Piezoelectric transducer Piezoelectric transducer

1976-11-15

1979-05-29

Stellar, George G.

Electrical generator or motor structure

Dynamoelectric

Rotary

179121D, 310322, 310332, 310800, H04R 1700, H04R 1702, H04R 1710, B06B 106

Patent

active

041568001

ABSTRACT:
A piezoelectric transducer including a member composed of at least two superposed plastics layers at least one of which is piezoelectric, the said at least one piezoelectric layer being sandwiched in an untensioned state between two electrically conducting electrodes; and support means for the said member which are adapted to form at least one transducer element from the said member.

REFERENCES:
patent: 2121779 (1938-06-01), Ballantine
patent: 2198424 (1940-04-01), Baumzweiger
patent: 2323030 (1943-06-01), Gruetzmacher
patent: 2910545 (1959-10-01), Glenn
patent: 2967956 (1961-01-01), Dranetz et al.
patent: 3107630 (1963-10-01), Johnson et al.
patent: 3130275 (1964-04-01), Hagey
patent: 3222462 (1965-12-01), Karmann et al.
patent: 3264861 (1966-08-01), Miles
patent: 3287692 (1966-11-01), Turner
patent: 3351393 (1967-11-01), Emmerich
patent: 3660602 (1972-05-01), Thompson
patent: 3700938 (1972-10-01), Bryant
patent: 3715500 (1973-02-01), Sessler et al.
patent: 3746898 (1973-07-01), Austin et al.
patent: 3792204 (1974-02-01), Murayama et al.
patent: 3798474 (1974-03-01), Cassand et al.
patent: 3947644 (1976-03-01), Uchikawa

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