Plenum fan banding
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United States of America Patent
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Aug 16, 2005
Grant Date -
N/A
app pub date -
Mar 18, 2003
filing date -
Mar 18, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Plenum fan banding that effectively changes the width of the fan blades in a plenum fan for a HVAC unit. A removable and replaceable band attaches to the back of a fan wheel of the plenum fan so that the band is located within the circle of the fan blades and extends outward perpendicular to the back of the wheel. The band is provided with tabs that insert through slots provided in the back of the fan wheel, and the tabs can be bent over as a means of removably securing the band to the fan wheel. The band effective reduces the functional width of the fan blades in proportion to the width of the band.
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