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Fuel level measurement device

  • US 7,409,860 B2
  • Filed: 02/14/2006
  • Issued: 08/12/2008
  • Est. Priority Date: 02/14/2006
  • Status: Expired due to Fees
First Claim
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1. A fuel level measurement device for a fuel tank comprising:

  • an arm having one end configured to be carried pivotally by a body and a distal end;

    a float housing carried by the arm adjacent the distal end and defining a sealed chamber providing buoyancy generally upon a surface of fuel in the tank;

    a cupped track carried by the housing within the chamber and opening generally upward;

    a gravity responsive, electrically conductive, member that changes position along the track with changing elevation of the float housing;

    an electrical conductor exposed in the chamber and extending along the length of the track;

    a variable electrically resistive ink strip exposed in the chamber and extending along the length of the track; and

    the gravity responsive member is in movable electrical contact with the resistive ink strip at a first point and in movable electrical contact with the electrical conductor at a second point to provide an electrically conductive path generally of the member and between the ink strip and the conductor for electrical circuit completion.

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