Electroacoustic transducers

Details Electroacoustic transducers Electroacoustic transducers

1974-04-22

1976-02-24

Tomsky, Stephen J.

Acoustics

Diaphragm

181161, 181167, 181173, G10K 1300, H04R 700

Patent

active

039399427

ABSTRACT:
The present invention comprises a radially pulsating cylindrical surface operating as a wave transmission-line. The device is responsive to electrical means and may be practically utilized to generate pressure waves. A conventional electromagnetic driving system is employed with the novel cylindrical surface. A cylindrical voice coil is affixed to the cylindrical surface co-axially. The surface may comprise a matrix of helically oriented fibers suspended in an elastomeric impregnant. Damping means may be provided both internally and terminally. The radiation produced is omnidirectional.

REFERENCES:
patent: 337753 (1886-03-01), Dowling
patent: 1862552 (1932-06-01), Schlenker
patent: 3272281 (1966-09-01), Rutter
patent: 3310131 (1967-03-01), Ward

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