Sound generator

Details Sound generator Sound generator

G - Physics

10

K

179/38, 84/63

G10K 9/00 (2006.01) G10K 9/122 (2006.01) H04R 17/00 (2006.01)

Patent

CA 1087004

ABSTRACT OF THE DISCLOSURE A sound generator for use with fire alarm systems, security system and the like is disclosed. The generator con- sists of a three-dimensional body which is closed at one end and open at the other. A crystal is attached to the surface of the closed end and oscillator means are operative to pulse the crystal to cause the body to vibrate.

283858

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