Communications: electrical – Condition responsive indicating system – Specified housing
Patent
1985-11-12
1987-09-15
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
Specified housing
340628, 340691, 340586, G08B 2300
Patent
active
046942858
ABSTRACT:
The combination is described of an electrical smoke, heat detector and electrical light in a single unit which is removably attachable to an electrical fixture. The combination includes a closed housing containing smoke heat sensing alarms. Also recessed flush within the housing is a light bulb socket for reception of a light bulb into a face of the housing. Protruding from an opposite face of the housing is an electrical connector, capable of screw-in attachment to a standard electrical outlet fixture. A switching device to turn the light on or off, forms of which include: push button, toggle switch, or pull chain, is installed within the closed housing such that the switch is operable externally of the housing. A second switching device, also operable externally of the housing activates and de-activates a self-contained battery power source to operate the smoke and heat sensor functions of the combination.
REFERENCES:
patent: 4090178 (1978-05-01), Norris
patent: 4093943 (1978-06-01), Knight
patent: 4255746 (1981-03-01), Johnson et al.
patent: 4319229 (1982-03-01), Kirkor
patent: 4365237 (1982-12-01), Knight
Crosland Donnie L.
Semmes John G.
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