Fuel level sensor with buried conductor

Details Fuel level sensor with buried conductor Fuel level sensor with buried conductor

1988-09-16

1989-05-09

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

Float

73304R, 73319, 338 33, 200 84R, 340624, G01F 2360

Patent

active

048277690

ABSTRACT:
A fuel level sensor 16 comprises a vertical member 20 and float 22 wherein said vertical member 20 comprises a steel substrate 26 encased in porcelain 28 with a thick film cermet resistive track 34 deposited thereon. A nickel deposit 36 at the bottom portion of the vertical member 20 facilitates electrical continuity between the substrate 26 and the resistive track 34 such that the substrate acts as a buried conductor enabling proportionality between magnitude of resistance and liquid level while diminishing the likelihood of conductor erosion and float interference.

REFERENCES:
patent: 4229972 (1980-10-01), Phillips et al.
patent: 4454761 (1984-06-01), Coulange
patent: 4554831 (1985-11-01), Sealey et al.
patent: 4560986 (1985-12-01), Lew et al.
patent: 4567762 (1986-02-01), Hoppert et al.
patent: 4626874 (1986-12-01), Murai et al.
patent: 4638291 (1987-01-01), Puscasu
patent: 4641523 (1987-02-01), Andreasson
patent: 4702107 (1987-10-01), Guerrini et al.
patent: 4757305 (1988-07-01), Peso
patent: 4779460 (1988-10-01), Cruickshank

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