Shrouded floor drying fan

  • US 7,007,403 B1
  • Filed: 09/27/2004
  • Issued: 03/07/2006
  • Est. Priority Date: 09/27/2004
  • Status: Active Grant
First Claim
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1. A fan, comprising:

  • a shroud forming a confined space having an inlet orifice and an output orifice;

    a plurality of extensions arranged in distributed manner around the output orifice and extended in the range of two to five inches therefrom for substantially uniformly spacing the output orifice a distance of two to five inches from a substantially flat work surface that is external to the confined space and larger than the output orifice for forming a substantially circular opening between the confined space and the work surface adjacent to the output orifice;

    a fan impeller positioned within the confined space for generating pressurized air within the confined space and directing the pressurized air in an air stream through the output orifice; and

    a rotary power supply coupled for driving the fan impeller.

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