Air filtration device

  • US 6,328,791 B1
  • Filed: 05/03/2000
  • Issued: 12/11/2001
  • Est. Priority Date: 05/03/2000
  • Status: Expired due to Term
First Claim
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1. An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air and configured for operational association with a generally vertically oriented surface, said air filtration device comprising:

  • a housing defining an air flow path therethrough and having a front surface, at least one side surface and a rear surface;

    at least one air inlet formed in said front surface of said housing;

    at least one air outlet formed in said housing intermediate said front surface and said rear surface, for cooperation of said air outlet with a generally vertical surface to which said air filtration device is associated for enhanced dispersion of filtered air expelled through said air outlet;

    a generally planar filter supported in said air flow path and being selectively removable from said housing, said filter including a notch formed therein for directing insertion of said filter in a correct orientation with respect to said air flow path; and

    an impeller for moving air through said housing along said air flow path from said at least one air inlet to said at least one air outlet, said impeller being supported within said housing.

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