Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Patent
1993-05-17
1994-08-23
Spitzer, Robert
Gas separation: processes
With control responsive to sensed condition
Pressure sensed
95105, 95130, 96114, 96130, 96133, B01D 5304
Patent
active
053403819
ABSTRACT:
An operating system for dual-sieve oxygen concentrators, as used by invalids, provides a method and apparatus for controlling the purging and release of product gas and the cycling period in response to the pressure build-up in each sieve column. The cycling period is thereby self-adjusting to changes in the capacity of the columns. Restricting flow of product gas and purge gas to the higher-pressure part of the adsorption period provides product gas of higher purity and reduces the loss of oxygen in the purge.
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Oxycon; Service and Repair Manual; Oxycon, Inc.; Cover and Flow Sheet of FIG. 3, p. 8, (not dated).
Gross Jerome A.
Spitzer Robert
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