Piezo electric transducer

Details Piezo electric transducer Piezo electric transducer

1992-02-10

1993-06-01

Stephan, Steven L.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310339, 200181, 341 34, H01L 4108

Patent

active

052163164

ABSTRACT:
The first embodiment of a piezo electric transducer shown in this application has a housing, an actuator, piezoelectric material, a first fixed contact and a second fixed contact. The actuator overlies the piezo-electric material and is attached to the inner surface of the housing. The piezoelectric material overlies the spaced first and second fixed contacts whereby distortion of the piezoelectric material by the actuator causes a current to flow between the first and second fixed contacts. In the second embodiment the piezoelectric material is attached to the inner surface of the housing. In a variation of the first and second embodiments, the piezo electric material is sandwiched between first and second dome portions. The first dome portion is engaged to a first fixed contact and the second dome portion is engaged to a second fixed contact.

REFERENCES:
patent: 2714642 (1955-08-01), Kinsloy
patent: 3940637 (1976-02-01), Ohigashi et al.
patent: 4158117 (1979-06-01), Quilliam et al.
patent: 4398074 (1983-08-01), Danielson
patent: 4527105 (1985-07-01), Shiraishi
patent: 4542325 (1985-09-01), Kobayashi
patent: 4580074 (1986-04-01), Gilman
patent: 4598181 (1986-07-01), Selby
patent: 4703139 (1987-10-01), Dunlap
patent: 4868566 (1989-09-01), Strobel
patent: 4896069 (1990-01-01), Rosenberg

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