Method and device for controlling wrinkles in a vibratile diaphr

Details Method and device for controlling wrinkles in a vibratile diaphr Method and device for controlling wrinkles in a vibratile diaphr

1978-04-25

1980-07-29

Moffitt, James W.

H04R 714, H04R 1900

Patent

active

042152496

ABSTRACT:
A method and device for significantly improving the efficiency and sensitivity of an electroacoustical transducer. A relatively inelastic vibratile diaphragm is preformed to the shape of a mating backplate prior to the time it is actually mated to said backplate. By such preforming, the efficiency and sensitivity reducing effects from a wrinkled transducer diaphragm are minimized in that said wrinkles move to a diaphragm region where they have no effect on transducer sensitivity when the backplate is subsequently mated to said diaphragm.

REFERENCES:
patent: 1550381 (1925-08-01), Massolle et al.
patent: 2009520 (1935-07-01), Reisz
patent: 2297211 (1942-09-01), Gerlach
patent: 4085297 (1978-04-01), Paglia

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