Measuring and testing – Liquid level or depth gauge – Float
Patent
1991-03-04
1992-09-15
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Float
73308, 336136, G01F 2360, H01F 2106
Patent
active
051467844
ABSTRACT:
The improved device for measuring liquid-level changes in storage tanks uses a float to track vertical displacement of the surface of a liquid and a linear variable differential transducer (LVDT) sensor positioned below the surface of the liquid to measure changes in the surface level. The center of gravity of the device is located below the center of buoyancy, thereby minimizing instability of the LVDT sensor.
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patent: 2359927 (1944-10-01), Melas
patent: 3834234 (1974-09-01), Kobayashi et al.
patent: 4321826 (1982-03-01), Bibbee et al.
patent: 4407159 (1983-10-01), Wytaniec
patent: 4497205 (1985-02-01), Zulauf et al.
patent: 4852054 (1989-07-01), Mastandrea
Maresca, Jr. Joseph W.
Starr James W.
Wise Richard F.
Vista Research, Inc.
Yasich Daniel M.
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