Loudspeaker suspension

Details Loudspeaker suspension Loudspeaker suspension

2005-05-10

2005-05-10

Hsieh, Shih-Yung (Department: 2837)

Acoustics

Diaphragm

Mounting or suspension means

C181S171000, C181S173000, C181S174000, C181S157000

Reexamination Certificate

active

06889796

ABSTRACT:
An annular surround for a loudspeaker cone wherein a radial cross-section of the surround varies around the circumferential extent of the surround, so as to accommodate peripheral expansion or contraction of the surround by bending. Thus a trough shaped cross-section of the surround may vary sinusoidally with angle around the polar axis of the surround between a semicircular and semielliptical cross-section. The trough section may bland to an adjacent portion of the surround by a fillet which also varies sinusoidally in cross-section in phase with the variation of the trough.

REFERENCES:
patent: 3997023 (1976-12-01), White
patent: 4881617 (1989-11-01), Faraone
patent: 5455396 (1995-10-01), Willard et al.
patent: 369476 (1932-03-01), None
patent: 726780 (1955-03-01), None
patent: 1247434 (1971-09-01), None
patent: 2035008 (1980-06-01), None
patent: 2055528 (1981-03-01), None
patent: 2348336 (2000-09-01), None

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