FAN BLADE TIPS
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United States of America Patent
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N/A
Issued Date -
May 24, 2012
app pub date -
Nov 22, 2011
filing date -
Nov 23, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Fans having blade tips with downwardly extending airfoil surfaces are disclosed herein. In one embodiment, for example, a high volume low speed ceiling fan includes a plurality of blades, each having an anhedral or downward sloping tip portion. The blade tips can also include an aft swept portion that extends between the main airfoil portion of the fan blade and the anhedral tip portion.
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