Fuel tank resistor card having improved corrosion resistance

Details Fuel tank resistor card having improved corrosion resistance Fuel tank resistor card having improved corrosion resistance

2006-02-21

2006-02-21

Easthom, Karl D. (Department: 2832)

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

C338S033000, C338S194000

Reexamination Certificate

active

07002447

ABSTRACT:
A resistor card for a fuel level sensor has improved resistance to corrosion and wear. The resistor card has a substrate with a resistive layer and a conductive layer. A nickel layer covers the conductive layer. A nickel-gold alloy layer covers the nickel layer. The nickel-gold alloy layer protects the conductive layer from sulfur corrosion and improves wear resistance.

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patent: 5689227 (1997-11-01), Nguyen et al.
patent: 5746088 (1998-05-01), Sawert et al.
patent: 6127916 (2000-10-01), Cooper et al.
patent: 6518873 (2003-02-01), O'Regan et al.
patent: 6681628 (2004-01-01), Sawert et al.
patent: 6824597 (2004-11-01), Heber et al.

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