Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Patent
1998-02-20
1999-10-19
Spitzer, Robert
Gas separation: apparatus
Solid sorbent apparatus
Plural solid sorbent beds
96133, 96144, B01D 5304
Patent
active
059682361
ABSTRACT:
A valve free oxygen concentrator includes first and second nitrogen filters. Air is pumped into and through the first filter while the second filter is simultaneously evacuated. Alternately, air is pumped into and through the second filter while the first filter is simultaneously evacuated. The filters extract nitrogen from the air pumped therethrough to produce concentrated oxygen. The extracted nitrogen is subsequently exhausted from the filters. The concentrated oxygen is directed from the filters to a patient or other destination that requires concentrated oxygen.
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Noonan William E.
Spitzer Robert
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