Audio-visual alarm device with translucent cover

Details Audio-visual alarm device with translucent cover Audio-visual alarm device with translucent cover

1982-05-19

1985-05-21

Groody, James J.

Communications: electrical

Systems

Plural

340327, 340331, G08B 2700

Patent

active

045189463

ABSTRACT:
An alarm device comprises a bell alarm 12 and a flashing light warning means 11, both encased in a housing 13 formed of translucent material. The device of the invention incorporates both an audible and visual alarm means in a single device and electrical circuit means are provided whereby the audible alarm may be turned off after a preselected time period and the visual warning means then comes into operation. Alternatively, both the audible alarm and the visual warning alarm can both operate together initially and then, after a preselected time, the audible alarm is turned off, leaving the visual warning means in operation.
The arrangement of the invention is substantially maintenance free and vandal-proof and the translucent housing permits the visual warning means to be seen therethrough, without disclosing the workings of the device.

REFERENCES:
patent: 2572400 (1951-10-01), Slocum
patent: 2723389 (1955-11-01), Hallerberg
patent: 2730704 (1956-01-01), Warren
patent: 2731627 (1956-01-01), Herbst
patent: 3742480 (1973-06-01), Hoecker
patent: 4200823 (1980-04-01), Keeran
patent: 4241332 (1980-12-01), Farque
patent: 4254405 (1981-03-01), Wenzlaff

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