Patent ID: 8162613

Claim:
An extension for a fan blade, wherein the fan blade has a concave lower surface and a convex upper surface, the extension comprising: (a) an attachment member, and (b) an angled member having a proximal end and a distal end, wherein the angled member is integrally coupled to and extends from the attachment member at the proximal end of the angled member, such that the attachment member and the angled member together form a homogeneous continuum of material, the angled member comprising: i. a concave lower surface, and ii. a convex upper surface, wherein the attachment member is configured to substantially engage a fan blade first end, wherein a portion of the proximal end of the angled member abuts the fan blade first end when the attachment member is substantially engaged with the fan blade first end, wherein the concave lower surface of the fan blade and the concave lower surface of the angled member substantially align when the angled member abuts the fan blade first end, wherein the fan blade is configured to be mounted to a fan hub at a second end of the fan blade, the second end being opposite the first end, and wherein the angled member extends from the attachment member at a non-perpendicular, non-parallel angle relative to the fan blade.