Siren with remote driver

Details Siren with remote driver Siren with remote driver

1986-12-29

1987-12-01

Caldwell, Sr., John W.

Communications: electrical

Audible indication

Pneumatic-type sound producer

340387, 340388, G08B 300, G10K 700

Patent

active

047107499

ABSTRACT:
An electronic siren includes a driver unit and a speaker unit which are interconnected by a flexible sound pipe. The sound pipe is acoustically coupled to the driver unit and speaker unit by adaptors which provide a substantially smooth transistion from a driver unit to sound pipe and from sound pipe to speaker whereby attenuation is minimized.

REFERENCES:
patent: 2396423 (1946-03-01), Hines
patent: 4241334 (1980-12-01), Shintaku

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