Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1981-03-23
1982-03-02
Serwin, Ronald
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
043177964
ABSTRACT:
An explosive gas detector wherein power to a catalytic impedance element is held at a constant impedance level via a D.C., amplified, automatic bridge balancing circuit, and gas levels are indicated by an electrical meter connected between the output of a bridge and an adjustable level D.C. bias.
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patent: 3574553 (1971-04-01), Fertig
patent: 3907503 (1975-09-01), Betts et al.
patent: 4258002 (1981-03-01), Barr
Phillips C. A.
Serwin Ronald
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