US Patent 6910483 Double-ended blower and volutes therefor
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Patent abstract
A double-ended variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the double-ended blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.
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Patent Inventor Names
Alexander Virr0
Dion Charles C. Martin0
Geoffrey D. Daly0
Larry Puckeridge0
Nicholas J Reed0
Stephen A. Lea0
Timothy Tsun-Fai Fu0
Date of Patent
June 28, 2005
0Patent Application Number
103607570
Date Filed
December 10, 2001
0Patent Primary Examiner
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US Patent 6910483 Double-ended blower and volutes therefor
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