Invention Grant
- Patent Title: Double-ended blower and volutes therefor
- Patent Title (中): 双头鼓风机和蜗壳
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Application No.: US13543162Application Date: 2012-07-06
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Publication No.: US08499760B2Publication Date: 2013-08-06
- Inventor: Geoffrey D. Daly , Alexander Virr , Stephen A. Lea , Dion Charles C. Martin , Nicholas J. Reed , Larry Puckeridge , Timothy Tsun-Fai Fu
- Applicant: Geoffrey D. Daly , Alexander Virr , Stephen A. Lea , Dion Charles C. Martin , Nicholas J. Reed , Larry Puckeridge , Timothy Tsun-Fai Fu
- Applicant Address: AU Bella Vista, New South Wales
- Assignee: Resmed Limited
- Current Assignee: Resmed Limited
- Current Assignee Address: AU Bella Vista, New South Wales
- Agency: Nixon & Vanderhye, P.C.
- Main IPC: A61M11/00
- IPC: A61M11/00
Abstract:
A 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 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.
Public/Granted literature
- US20120266887A1 DOUBLE-ENDED BLOWER AND VOLUTES THEREFOR Public/Granted day:2012-10-25
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