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US 11,415,146 B2Granted
Ceiling fan blade
AssigneeHunter Fan Company
InventorsBobby Neal Norwood, Charles William Botkin
Life of this patent
Estimating the term…
Abstract
A ceiling fan or similar air-moving device can include a motor for rotating one or more blades to drive a volume of air about a space. The blade can include a body having an outer surface with a flat top surface and a flat bottom surface, and a side edge. A curved transition can extend between one of the flat top surface or the flat bottom surface, and the side edge. The curved transition can include an elliptical curvature.
Claims20
A blade for a ceiling fan having a fan motor for rotating the blade, the blade comprising:
- a body having an outer surface extending between a root and a tip in a span-wise direction and extending between a first side edge and a second side edge in a chord-wise direction, the outer surface having a planar top surface and a bottom surface, with the first side edge and the second side edge spacing the planar top surface from the bottom surface;
- a top curved transition transitioning from the planar top surface to the first side edge;
- and
- a bottom curved transition transitioning from the planar top surface to one of the first side edge or the second side edge;
- wherein the top curved transition has a greater chordwise length than the bottom curved transition.
2 more elements
A blade for a ceiling fan, the blade having a chordwise direction and comprising:
- a flat, planar upper surface;
- a flat, planar lower surface opposite from the flat, planar upper surface;
- a side edge having a width spacing the flat, planar upper surface and the flat, planar lower surface;
- a first curved transition transitioning between the side edge and the flat, planar upper surface;
- and
- a second curved transition transitioning between the side edge and the flat, planar lower surface;
- wherein first curved transition has a chordwise width greater than the chordwise width of the second curved transition.
4 more elements
Dependencies are inferred from the claim text.