Patent ID: 7793586

Claim:
A removable blower wheel assembly comprising: (a) a first hub including a disc portion and a protruded portion and a plurality of shafts extending from the disc portion of the first hub, wherein a central aperture is defined through the disc and protruded portions, wherein the disc portion is configured to receive the plurality of shafts that extend in parallel to the protruded portion; (b) a blower wheel defining a central hole and a plurality of first apertures spaced outward from the central hole, wherein the protruded portion of the first hub extends through the central hole; (c) a second hub including a disc portion and a protruded portion, wherein the protruded portion of the first hub extends within and through a portion of the protruded portion of the second hub, and a plurality of second apertures defined in the second hub, wherein the plurality of first and second apertures are coaxially aligned and receive the plurality of shafts when the first hub, blower wheel, and second hub are engaged.