Emergency lighting system with alarm for fire, gas and ambient a

Details Emergency lighting system with alarm for fire, gas and ambient a Emergency lighting system with alarm for fire, gas and ambient a

1994-01-27

1996-02-20

Williams, Hezron E.

Communications: electrical

Condition responsive indicating system

With particular system function

G08B 2600

Patent

active

054932726

ABSTRACT:
Emergency lighting system with alarm for fire, gas and ambient air pollution with automatic monitoring and battery recharging utilizing a bus and a microprocessor circuit whose input and output signals regulate the programming. A sensor for one or more environmental hazard factors is connected to the data bus.

REFERENCES:
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patent: 4217646 (1980-08-01), Caltagirone
patent: 4316185 (1982-02-01), Watrous
patent: 4468655 (1984-08-01), Iwata
patent: 4531114 (1985-07-01), Topol
patent: 4589081 (1986-05-01), Massa
patent: 4831361 (1989-05-01), Kimura
patent: 4945280 (1990-07-01), Beghelli
patent: 5061997 (1991-10-01), Rea et al.
patent: 5105370 (1992-04-01), Shaw
Peatman, J. S., Microcomputer-Based Design, N.Y., McGraw-Hill, pp. 104-127, 312-318, 1977.

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