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Self cleaning filter and vacuum incorporating same

  • US 7,351,269 B2
  • Filed: 12/22/2003
  • Issued: 04/01/2008
  • Est. Priority Date: 12/22/2003
  • Status: Expired due to Fees
First Claim
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1. A vacuum cleaner comprising:

  • a housing containing a motor configured to drive a fan, said fan positioned to draw air through an air intake aperture and discharge air through a vent;

    a dust collection chamber operatively attached to said housing, said dust collection chamber having an inlet and an outlet, said inlet configured to allow air and airborne particles to enter said dust collection chamber, said outlet positioned to fluidly communicate with said air intake aperture for said fan;

    a first filter configured to prevent at least some of said airborne particles from reaching said fan;

    a movable brush configured to encounter said first filter as said brush moves, whereby at least some of said airborne particles that adhere to said first filter may be dislodged by said brush; and

    wherein said brush is operatively connected to said motor whereby operation of said motor will cause said brush to move.

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