High performance speaker diaphragm

Details High performance speaker diaphragm High performance speaker diaphragm

1981-05-14

1982-11-16

Cannon, James C.

Acoustics

Diaphragm

Critically defined material or coating

1791155R, 1791155ES, 264119, 264122, 264126, 428 65, 428288, D04H 158, H04R 712

Patent

active

043591329

ABSTRACT:
The disclosure is of a high performance speaker diaphragm which comprises needled and interlocked textile staple fibers of a first, relatively heat-resistant fiber and a second, heat-softenable fiber. The fibers are molded together to soften the second fiber whereby it interlocks with the first fiber.

REFERENCES:
patent: 1393515 (1921-10-01), Egerton
patent: 1543394 (1925-06-01), Parsons
patent: 4195112 (1980-03-01), Sheard et al.
patent: 4258093 (1981-03-01), Benedyk
patent: 4291781 (1981-09-01), Niguchi

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