Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1988-09-14
1990-10-02
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
73 232, 422 93, 422103, 436136, 436181, G01N 3100
Patent
active
049605682
ABSTRACT:
An improved oxygen analyzer device is disclosed which comprises a gas flow passage having inlet and exhaust ports, an oxygen concentration detector in proximity to the exhaust port and first and second parallel intermediate flow passages, one of which contains a purifier to remove oxygen from the gas flowing therethrough. The device is characterized by the use of metal, diaphram-type, three-way valves in the branch-off and junction points between the intermediate flow passages. The valves eliminate dead space in conventional devices that extends both the calibration and analysis time of such devices.
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Makihara Akira
Matsumoto Yoshiro
Johnston Jill
Nemetz Carol A.
Osaka Sanso Kogyo Ltd.
Pearlman Robert I.
Rosenblum David M.
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