Measuring and testing – Gas analysis – Gas chromatography
Patent
1982-07-09
1985-05-14
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
73 1G, 55 21, G01N 3106
Patent
active
045164240
ABSTRACT:
An improved oxygen concentrator includes an oxygen sensor, valve and timer for periodically directing a breathable gaseous mixture having increased oxygen concentration to the sensor. A preferred assembly includes an alarm and means for increasing oxygen concentration in the breathable gaseous mixture when the concentration falls below a selected concentration.
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Hudson Oxygen Therapy Sales Company
Kreitman Stephen A.
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