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Air actuated automatic lint screen cleaning system for dryer

  • US 4,700,492 A
  • Filed: 02/05/1986
  • Issued: 10/20/1987
  • Est. Priority Date: 02/05/1986
  • Status: Expired due to Fees
First Claim
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1. A method for cleaning a circular lint screen in a clothes dryer including a blower for generating a first air flow through said circular lint screen, comprising:

  • accumulating lint on a first side of said circular lint screen by said first air flow during operation of said dryer;

    directing a restricted second air flow through said lint screen in a direction opposite to said first air flow to remove lint accumulated on said first screen side, said restricted second air flow being directed through a narrow radially extending region of said circular lint screen from substantially the center of said screen to adjacent the edge of said screen, said radially extending region through which said second air flow is directed being wider adjacent said edge of said screen than at said center of said screen;

    moving said restricted second air flow rotationally relative to said lint screen to cause oppositely directed air flow through substantially all of said lint screen in a predetermined time period;

    transporting lint removed from said lint screen to a lint reservoir; and

    storing lint that has been transported within said lint reservoir.

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