Oxygen concentrator

Details Oxygen concentrator Oxygen concentrator

1984-07-26

1985-12-31

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

55 21, G01N 3106

Patent

active

045612870

ABSTRACT:
An oxygen concentrator having molecular sieve beds for selectively adsorbing nitrogen from atmospheric air for increasing the oxygen concentration of a product gas, a reservoir for receiving the product gas, a compressor for charging atmospheric air to the sieve beds and a valve and valve switching means for directing atmospheric air from the compressor to alternate sieve beds includes means for sensing the withdrawal rate of product gas from the reservoir and a microprocessor provided with the minimum time required for charging the respective sieve beds to achieve a product gas having a selected oxygen concentration at the sensed rate of withdrawal and means for switching the valve to charge the beds for the minimum charge time.

REFERENCES:
patent: 3922149 (1975-11-01), Ruder et al.
patent: 4197095 (1980-04-01), White, Jr. et al.
patent: 4247311 (1981-01-01), Seibert et al.
patent: 4404005 (1983-09-01), Hamlin et al.
patent: 4428372 (1984-01-01), Beysel et al.
patent: 4449990 (1984-05-01), Tedford, Jr.

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