Fire and explosion detection apparatus

Details Fire and explosion detection apparatus Fire and explosion detection apparatus

1978-05-03

1980-04-22

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250342, 250372, G01J 100, G01J 142

Patent

active

041996828

ABSTRACT:
Fire and explosion detection apparatus comprises an ultra violet detector providing a first output signal in response to receipt of ultra violet radiation and an infra red detector providing a second output signal in response to receipt of infra red radiation. A logical AND circuit, in response to simultaneously occurring first and second output signals, provides a third output signal indicative of simultaneous receipt of ultra violet and infra red radiation.

REFERENCES:
patent: 3653016 (1972-03-01), Cormier
patent: 3665440 (1972-05-01), McMenamin
patent: 3825754 (1974-07-01), Cinzori et al.
patent: 3931521 (1976-01-01), Cinzori

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