Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1984-08-06
1986-04-29
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
250379, H01J 4702
Patent
active
045859329
ABSTRACT:
A system for monitoring potentially hazardous conditions in an area. The monitor system provides a continuous check of the atmosphere in a given area for nuclear radiation hazard and for combustion hazard. When a predetermined radiation level or combustion condition occurs in the area an alarm is activated which indicates the particular kind of danger existing. A small bomb calorimeter housing or vessel supports and houses a radiation sensor and a combustion sensor. Detection circuitry responds to the radiation and combustion sensors to provide an output signal when a predetermined, dangerous threshold condition exists in the area. A screen capacitor, electroscope, and a periodic charging circuit comprise the radiation hazard detection circuitry. A reflex surge generator comprised of a sparking circuit and a spark gap in conjunction with a resistance thermometer detector provide the fire hazard circuitry. Indicator or annunciator circuitry coupled to the detectors disclose the status of the two circuits. A percentage of prevailing atmosphere is controllably forced through a portion of the container and continuously sampled to indicate potential fire and nuclear hazards.
REFERENCES:
patent: 2885555 (1959-05-01), Blumer
patent: 3436542 (1969-04-01), Ganouna-Cohen
patent: 4398836 (1983-08-01), Sitek
patent: 4445037 (1984-04-01), Anderson
Honeycutt Thomas E.
Roberts Thomas G.
Bush Freddie M.
Gibson Robert P.
Hanig Richard
Lane Anthony T.
Smith Alfred E.
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