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Enhanced air-flow blower wheel

  • US 4,981,416 A
  • Filed: 12/14/1989
  • Issued: 01/01/1991
  • Est. Priority Date: 01/31/1989
  • Status: Expired due to Term
First Claim
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1. A blower wheel assembly comprisinga hub;

  • a central plate surrounding the hub having a concave outer side and a convex inner side;

    a plate rim secured to said central plate;

    a plurality of spaced blower blades protruding from the inner side of said plate rim for expelling air from the inner side of said central plate outward from said blower blades; and

    aperture means for enabling the passage of air from the outer side of said central plate to the inner side of said plate to permit air from the outer side to also be expelled outward from said blower blades;

    whereby a single set of blower blades acts to expel air from both sides of the central plate outwardly from the blower wheel assembly.

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