Multi-function combustion detecting device

Details Multi-function combustion detecting device Multi-function combustion detecting device

1978-01-26

1981-11-24

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

390506, 390533, 390636, G08B 1710, G08B 2900

Patent

active

043027539

ABSTRACT:
A battery powered products of combustion detector and warning device, which is interconnectable in a detecting system with other similar devices, is characterized by means for providing separate, distinct and sensibly perceptible signals representative of (a) a standby or quiescent condition of the device, (b) the energy level of the battery decreasing to at least a predetermined level, (c) the sensitivity of the device to the phenomena decreasing to at least a selected level, (d) detection by the device of the occurrence of the phenomena, or (e) detection of the phenomena by another warning device interconnected therewith. In consequence, a user of the warning device is readily and continuously apprised of the operating condition and state of the device.

REFERENCES:
patent: 3774186 (1973-11-01), Enemark
patent: 3879718 (1975-04-01), Roberts
patent: 3899732 (1975-08-01), Staby
patent: 4020479 (1977-04-01), Conforti et al.
patent: 4081795 (1978-03-01), Ogawa
Arthur, P. R., "Battery Condition Indicator", Radio & Electronics Constructor, vol. 29, No. 3, pp. 174-175, Oct. 1975, London.

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