Piezoelectric high polymer, multilayer electro-acoustic transduc

Details Piezoelectric high polymer, multilayer electro-acoustic transduc Piezoelectric high polymer, multilayer electro-acoustic transduc

1977-09-16

1980-01-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

179110A, 310800, H01L 4110

Patent

active

041863232

ABSTRACT:
The present invention provides an electro-acoustic transducer including a pair of piezo-electric plastics film diaphragms coupled in a push-pull manner and so arranged as to form a lens-like configuration by a body of a light fibrous material therebetween.
The diaphragms are coupled in push-pull manner, and the transducer is especially suitable for use in a telephone instrument.

REFERENCES:
patent: 3816774 (1974-06-01), Ohnuki et al.
patent: 3832580 (1974-08-01), Yamamuro et al.
patent: 3947644 (1976-03-01), Uchikawa

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