Fuel level sensor

Details Fuel level sensor Fuel level sensor

2006-06-20

2006-06-20

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Float

C073S314000

Reexamination Certificate

active

07062966

ABSTRACT:
A small profile fuel level sensor has a small float located in a vertically-oriented housing in a fuel tank, and instead of sliding against two resistive strips that output a level signal as fuel level changes, the float is drawn to and rolls against the two strips owing to the presence of a magnetic strip on the side of the resistive strips that is opposite the float. Accordingly, with the magnetic strip attracting the float against the resistive strips to force rollable contact therebetween instead of slidable contact, much less friction must be overcome to move the float and, hence, use of a relatively small float and overall small sensor assembly is facilitated.

REFERENCES:
patent: 2416059 (1947-02-01), William
patent: 4637254 (1987-01-01), Dyben et al.
patent: 4951506 (1990-08-01), Lew

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