Sonic transducer having diaphragm tensioning spring directly att

Details Sonic transducer having diaphragm tensioning spring directly att Sonic transducer having diaphragm tensioning spring directly att

1981-06-04

1983-09-06

Schreyer, Stafford D.

H04R 1900

Patent

active

044031173

ABSTRACT:
Method and apparatus for significantly reducing the size and cost of an electroacoustical transducer. The transducer assembly includes a backplate with a grooved electrically conductive surface and a spring whose center portion supports the center portion of said backplate. The vibratile diaphragm of said transducer cooperatively engages said grooved backplate surface and the periphery of said diaphragm is bonded to a peripheral extension of said spring while said spring is being compressed under a predetermined amount of spring-flexing force.

REFERENCES:
patent: 3373251 (1968-03-01), Seefer
patent: 4085297 (1978-04-01), Paglia

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