Self-contained oxygen generator
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United States of America Patent
Stats
-
Mar 27, 2007
Grant Date -
Feb 10, 2005
app pub date -
Aug 2, 2004
filing date -
Aug 4, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A self-contained oxygen generator containing a PSA unit and a flowmeter in the outlet line. The flowmeter provides a signal which represents the flow rate of the oxygen in the outlet line. A leakage circuit with a calibrated orifice and a solenoid valve are also located on the outlet line. In response to a signal from the flowmeter, the solenoid can be actuated so as to provide a calibrated leakage at the outlet of the PSA. This calibrated leakage is useful when overall oxygen usage is too low.
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