US Patent 8122884 Double-ended blower and volutes therefor
Patent 8122884 was granted and assigned to ResMed on February, 2012 by the United States Patent and Trademark Office.
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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 Chewe Martin0
Geoffrey Daniel Daly0
Larry Puckeridge0
Nicholas Jerome Reed0
Stephen Anthony Lea0
Timothy Tsun-Fai Fu0
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US Patent 08122884 Double-ended blower and volutes therefor US Patent 8122884 Double-ended blower and volutes therefor
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Patent Number
08122884
Patent Number
8122884
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US Patent 08122884 Double-ended blower and volutes therefor
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Is a
Current assignee
Patent jurisdiction
Patent number
08122884
Date of patent
February 28, 2012
Patent application number
11135477
Date Filed
May 24, 2005
Patent primary examiner
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