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US 11,686,315 B2Granted
Ceiling fan and impeller blade
AssigneeHunter Fan Company
InventorJeffrey Butler Cunnane
Life of this patent
Estimating the term…
Abstract
A ceiling mounted fan or ceiling fan includes a body defining an interior passage having an inlet and an outlet provided on the body. The inlet, outlet, and interior passage can be annular. An impeller mounted is mounted within the interior passage and driven by a motor mounted within the body to draw a volume of air through the interior passage from the inlet to the outlet. The impeller blades include a set of extensions extending from the tip.
Claims18
A ceiling fan comprising:
- a body having an outer periphery and a bottom, the body defining an annular air flow passage with an annular inlet in the bottom, and an annular outlet provided on the outer periphery of the body;
- a motor having a rotor, defining a rotational axis, with at least a portion of the rotor located within the body;
- an impeller mounted to the rotor to move air through the air flow passage;
- an annular grill located radially exteriorly of the impeller and circumscribing the annular outlet such that air passing through the annular air flow passage and exiting the annular outlet passes through the grill;
- and
- a set of blades provided on the impeller, the set of blades located within the annular air flow passage and circumferentially spaced about the annular air flow passage, with at least one blade of the set of blades extending from a root to a tip in a span-wise direction, and extending from a first edge to a second edge defining a chord-wise direction, wherein at least some tips of the blades include an extension extending outward at the tip.
3 more elements
A blade for a ceiling fan impeller, the blade comprising:
- a body extending between a root and a tip, defining a span-wise direction, and extending between a first edge and a second edge, defining a chord-wise direction;
- and
- a set of extensions extending from the body at the tip;
- wherein the second edge includes a straight linear portion extending radially outwardly from the root and the second edge extends between the root and the tip, and includes a first curved portion and a second curved portion.
1 more element
An impeller for a ceiling fan comprising:
- a hub having an inner wall defining an interior motor chamber, and a top wall extending radially from an upper edge of the inner wall;
- a set of blades extending radially from the hub;
- wherein each blade of the set of blades includes a root and a tip and opposing first and second edges, with the first edge spaced from the second edge, and which extend between the root and the tip, wherein the root is attached to the inner wall, the first edge is attached to the top wall, and the tip includes a set of extensions extending radially outwardly from each blade of the set of blades;
- wherein each blade of the set of blades includes a bottom edge extending between the root and the tip, with the bottom edge including a straight linear portion extending from the root, a convex portion extending from the straight linear portion, and a concave portion extending between the convex portion and the tip.
1 more element
A ceiling fan comprising:
- a body defining an air flow passage with an inlet provided on a lower surface of the body and an outlet provided on an outer periphery of the body;
- a motor having a rotor, with at least a portion of the rotor located within the body;
- an impeller mounted to the rotor to move air through the air flow passage;
- a grill located radially exteriorly of the impeller and facing circumscribing the outlet such that air passing through the air flow passage and exiting the outlet passes through the grill;
- and
- a set of blades provided on the impeller, the set of blades located within the flow passage and circumferentially spaced about the flow passage, with at least one blade of the set of blades extending from a root to a tip in a span-wise direction, and extending from a first edge to a second edge defining a chord-wise direction, wherein at least some tips of the blades include an extension extending outward at the tip, the second edge includes a straight linear portion extending radially outwardly from the root, and the second edge further includes a first curved portion extending from the straight linear portion.
3 more elements
Dependencies are inferred from the claim text.