Siren

Details Siren Siren

1982-12-03

1985-07-16

Cangialosi, Salvatore

Communications: electrical

Audible indication

Pneumatic-type sound producer

116147, 181175, G10K 700, G08B 306

Patent

active

045299692

ABSTRACT:
An improved siren including means for producing and directing sound energy against a rotatable reflector which directs the sound waves out from the siren in a generally horizontal direction and which due to rotation of the reflector about a vertical axis causes such sound waves to be directed in all horizontal directions. One embodiment includes rotor and stator means which create sound energy that is directed generally downwardly in the manner of a ring radiator, together with a reflector mounted beneath the rotor and stator for rotation about a generally vertical axis, the reflector being tilted relative to its axis of rotation to intercept the downwardly directed sound waves and direct them out horizontally thereby providing a directional siren which covers a 360 degree area due to rotation of the reflector.

REFERENCES:
patent: 1428684 (1922-09-01), Erick
patent: 2015387 (1935-09-01), Seiss
patent: 2869667 (1959-01-01), Leslie
patent: 3982142 (1976-09-01), Goble
patent: 4138673 (1979-02-01), Faust

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