Fuel level sensor with buried conductor
US4827769A · kind A · utility
21Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/68
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.