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Dust collection unit and vacuum cleaner with the same

  • US 7,419,520 B2
  • Filed: 08/30/2005
  • Issued: 09/02/2008
  • Est. Priority Date: 08/31/2004
  • Status: Active Grant
First Claim
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1. A dust collection unit for a vacuum cleaner, comprising:

  • a dust collection container configured to collect foreign objects contained in air introduced therein;

    a porous filter unit configured to filter off the foreign objects in the dust collection container;

    covers defining a top and bottom of the dust collection container; and

    a filter-cleaning unit having;

    a plurality of brushes configured to rotate around the porous filter unit to remove the foreign objects clogging the outer surface of the porous filter unit;

    top and bottom rotation guides defining top and bottom portions of the filter-cleaning unit; and

    a rotation unit configured to provide a rotational force to rotate the plurality of brushes around the porous filter unit, the rotation unit including blades connected to the top and bottom rotation guides to provide the rotational force,wherein the blades extend from the top rotation guide to the bottom rotation guide.

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