Draft inducer having a backward curved impeller
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United States of America Patent
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Oct 7, 2008
Grant Date -
Nov 17, 2005
app pub date -
May 17, 2004
filing date -
May 17, 2004
priority date (Note) -
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Abstract
A draft inducer is disclosed. The draft inducer includes an impeller having one or more backward curved blades. The impeller is coupled to a motor which is preferably a DC motor. The DC motor resides at the center of the impeller and is housed within the impeller structure. The draft inducer may be mounted on a hot water heater between the hot and cold water pipes such that the impeller spins about a vertical axis.
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