Explosive gas detector

Details Explosive gas detector Explosive gas detector

1979-07-16

1981-03-24

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 98, G01N 2716, G01N 3112

Patent

active

042580021

ABSTRACT:
An explosive gas detector employing an electrically conductive element which, when powered, changes temperature in the presence of an explosive gas, and a control circuit which senses the increases in temperature and decreases the power input to the element as an inverse function of changes in temperature of the element. The level of electrical power provided the element is indicative of the concentration of explosive gas present.

REFERENCES:
patent: 2219540 (1940-10-01), Miller
patent: 2782102 (1957-02-01), Howe
patent: 2879142 (1959-03-01), Jones et al.
patent: 3440017 (1969-04-01), Palmer
patent: 3553461 (1971-01-01), Siano et al.
patent: 3574555 (1971-04-01), Fertig
patent: 3907503 (1975-09-01), Betts et al.

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