Measuring and testing – Liquid level or depth gauge – Float
Reexamination Certificate
2007-01-23
2007-01-23
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Float
Reexamination Certificate
active
10883155
ABSTRACT:
A fuel level sensor has a rotor with two magnets mounted for rotation therewith, the magnets spaced from one another and with like poles directed toward one another. A Hall effect sensor on the housing is positioned between the two magnets such that increasing the volume of fluid in the tank moves one magnet toward the sensor and decreasing the volume in the tank moves the other magnet toward the sensor. A metal sleeve around the magnets protects the parts from interference from magnetic material in the fuel. A static discharge path is provided from a metal rod connecting a float, a plate contracting the rod, and a pivot pin retaining the rotor to the housing, and a ground connector in contact with the pivot pin.
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Chen Jack
Jamnia Mohammad Ali
Marsh Robert L.
West Paul M.
Williams Hezron
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