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Title: Loudspeaker cone stiffeners

Abstract: An improved loudspeaker cone construction and method of improving performance comprises the use of one or more stiffener columns positioned across and attached to a loudspeaker cone at points intermediate small and large ends of the cone. A plurality of stiffener columns may be arranged in one or more cross shaped arrays or one or more polygon shapes, and attached to the cone in a plane perpendicular to a central axis of the cone. The stiffener rods reduce self-resonances within the cone and improve stiffness to generally improve performance.


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Inventors: Miller, Charles D. (P.O. Box 790126, Dallas, TX, 75379)

Application Number: 06/276810
Filing Date: 1981-06-25
Publication_date: 1983-02-15
Assignee: Miller, Charles D.

Primary Class(es): 181/166
Other Classes: H04R7/12; H04R7/00; H04R7/00
US Patent Ref:
2002189May, 1935Round et al.179/115.5R
2513171June, 1950Hassan181/171
2641329June, 1953Levy et al.181/171
3701865October, 1972Carlson et al.181/171
4115667September, 1978Babb179/115.5VC

Other Refs:
Primary Examiner: Hix L. T.
Assistant Examiner: Tarcza, Thomas H.
Attorney: Hubbard, Thurman, Turner & Tucker
Parent Case Data: BACKGROUND OF THE INVENTION

This application is a continuation-in-part of my U.S