Combination smoke detector and lamp structure

Details Combination smoke detector and lamp structure Combination smoke detector and lamp structure

1976-08-09

1978-05-16

Caldwell, Sr., John W.

Communications: electrical

Systems

Call station

340220, G08B 1710

Patent

active

040901785

ABSTRACT:
Structure for combining at one location smoke detection circuitry and wall or ceiling lamp apparatus. The structure includes a housing formed with a bottom wall and side walls and having an opening at the top thereof. The bottom wall has an opening centrally located therein. Also included is a lamp socket disposed in the housing so that the socket opening may receive the base of a lamp bulb through the opening in the bottom wall. Smoke detection circuitry is also disposed in the housing about the lamp socket. The circuitry includes an audible sound producing mechanism and a detector element responsive to the presence of smoke thereat for causing the sound producing mechanism to produce audible sound. The circuitry is powered alternatively by a rechargeable battery or by the current supplied to the lamp bulb.

REFERENCES:
patent: 1068440 (1913-07-01), McCarthy
patent: 2100908 (1937-11-01), Merdan
patent: 3320601 (1967-05-01), Yankus
patent: 3555531 (1971-01-01), Montone
patent: 3609730 (1971-09-01), Hornung

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