Quiet blower apparatus and system and method for reducing blower noise
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United States of America Patent
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Dec 25, 2012
Grant Date -
Jan 14, 2010
app pub date -
Dec 20, 2006
filing date -
Jan 4, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A blower assembly including a motor (4), an impeller (6) and a volute (8) that is configured such that an inlet chamber (112) of the volute and an outlet chamber (114) of the volute are divided from one another by an airtight membrane (128a-b) and the membrane is configured to allow the transmission of pressure waves between the inlet and outlet chambers.
First Claim
Family
International Classification(s)
- F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F03B:MACHINES OR ENGINES FOR LIQUIDS
- F04D:NON-POSITIVE-DISPLACEMENT PUMPS
- F03D:WIND MOTORS
- A62B:DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
- A61M:DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE B....
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