US Patent 7399347 Control valve structure for an oxygen machine
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Patent Inventor Names
Shao-Shih Huang0
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Patent abstract
A control valve structure for an oxygen machine uses a motor to link a disc to spin, which activates a pair of valve rods to open and close in sequence through rotation of the motor to control air flow.
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US Patent 07399347 Control valve structure for an oxygen machine US Patent 7399347 Control valve structure for an oxygen machine
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Patent Number
07399347
Patent Number
7399347
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Official Website
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US Patent 07399347 Control valve structure for an oxygen machine
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Is a
Patent jurisdiction
Patent number
07399347
Date of patent
July 15, 2008
Patent application number
11104461
Date Filed
April 13, 2005
Patent primary examiner
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