Isotrophic loudspeaker

Details Isotrophic loudspeaker Isotrophic loudspeaker

1985-07-09

1986-04-29

Fuller, Benjamin R.

Acoustics

Diaphragm

Plural dependent diaphragms

181148, 181171, 181173, G10K 1300, H04R 700

Patent

active

045850909

ABSTRACT:
An acoustic device in the form of a loudspeaker is described. An envelope consisting of many discrete parts is driven by an internal driven element so that the parts of the envelope move alternately in unison in an outwards direction and in unison in an inwards direction. Inside the envelope is arranged a framework comprising struts and tensile members, and the envelope parts are mounted on these struts and tensile members. Operation of the driven element varies the distance between two parallel struts of the framework. The framework is thus caused to distort and so cause the desired movement of the envelope parts. The single internal driven element can be replaced with two or more such elements in a modified arrangement.

REFERENCES:
patent: 4010821 (1977-03-01), Quillmann
patent: 4147229 (1979-04-01), Flashman
patent: 4168762 (1979-09-01), Griffin, Jr.

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