Loudspeaker voice coil bearing

Details Loudspeaker voice coil bearing Loudspeaker voice coil bearing

1976-03-22

1978-09-19

Stellar, George G.

H04R 904

Patent

active

041156676

ABSTRACT:
A dynamic loudspeaker which operates over a wide band of audio frequencies is disclosed. The speaker includes a speaker cone and voice coil structure of very low mass. A configuration of ribs on the cone and dust cap is important to both high and low frequency performance. The rear suspension for the speaker is a bearing on the voice coil structure. The bearing encircles and slides on the magnetic center pole of the speaker. A method of fabricating the low mass coil structure is disclosed, including forming the bearing surface by heat shrinkage of a low friction tape.

REFERENCES:
patent: 2235654 (1941-03-01), Steers
patent: 3201529 (1965-08-01), Surh

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