Audio-visual disaster alert system

Details Audio-visual disaster alert system Audio-visual disaster alert system

1979-06-18

1981-10-13

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

With particular system function

340517, 340525, 179 5P, G08B 1900

Patent

active

042951305

ABSTRACT:
A disaster alert system for a public area, building or the like, each area of which is provided with a sensor responsive to a localized disaster such as a fire with a circuit for each sensor connected to an audio/visual device identified with a specific area, the circuits being connected together so that the response of a sensor in a specific area activates the associated audio/visual device to provide an alerting output which indicates the location of the disaster and measure to be taken at all of the interconnected audio/visual devices.

REFERENCES:
patent: 3207849 (1965-09-01), Andrews
patent: 4107464 (1978-08-01), Lynch et al.

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