Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 11, 2007
Patent Application Number
10973286
Date Filed
October 27, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
An oxygen concentrating apparatus including an output variable type compressor. Oxygen-concentrated gas may be supplied either continuously or synchronized with inhalation or timing of inhalations. In one aspect, when synchronous operation is selected, the compressor is operated at a lower output in comparison with continuous supply operation. In a second aspect, when synchronous operation is selected, the supply quantity of oxygen-concentration gas is set to zero during the exhalation period.
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