Liquid level scale changeover measuring apparatus

Details Liquid level scale changeover measuring apparatus Liquid level scale changeover measuring apparatus

1980-09-15

1984-07-24

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Thermal type

324 96, 324115, 340618, 34087038, 364509, G01F 2324

Patent

active

044611757

ABSTRACT:
An apparatus for measuring liquid level in a container, particularly the fuel tank of a motor vehicle, has a plurality of detector stages for sensing or detecting a plurality of liquid level ranges, whereby an indicator stage can be arranged to indicate a first, normal range of measurement, and a second, precise resolution can be obtained of at least a portion of the overall measurement range, without requiring an excessively larger indicator stage. This is accomplished by arranging at least two groups of sensing elements one above the other in the tank and connecting them to indicator elements via change-over circuits such that one range of measurement is made via one group of sensing elements and a second, more precise range of measurements is made via a second group of sensing elements.

REFERENCES:
patent: 2894390 (1959-07-01), Talbot
patent: 3485100 (1969-12-01), Peterson
patent: 3882967 (1975-05-01), Gulla et al.
patent: 3918035 (1975-11-01), Eshraghian
patent: 3922564 (1975-11-01), Kachuk et al.
patent: 4023137 (1977-05-01), Olsbo et al.
patent: 4065967 (1978-01-01), Beeston
patent: 4187723 (1980-02-01), Golden et al.
patent: 4254375 (1981-03-01), Matsuoka
patent: 4319233 (1982-03-01), Matsuoka

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