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Columnar air moving devices, systems and methods

  • US 9,970,457 B2
  • Filed: 04/22/2016
  • Issued: 05/15/2018
  • Est. Priority Date: 05/30/2008
  • Status: Expired due to Fees
First Claim
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1. An air moving device comprising:

  • a housing having a top and a bottom, the housing defining an outer wall;

    an impeller positioned within said housing;

    an annular interior wall having a top and a bottom;

    stators positioned between the interior wall and the outer wall of the housing;

    the impeller positioned such that air from the impeller moves along a first path between the annular interior wall and the outer wall and along a second path within said annular interior wall;

    the annular interior wall defining a channel narrowing from its top to create an air flow; and

    a light source positioned downstream and below a narrowest portion of said channel, said light source positioned to be within the air flow and spaced below the bottom of the annular interior wall.

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