Measuring and testing – Liquid level or depth gauge – Hydrostatic pressure type
Patent
1977-10-21
1978-08-15
Swisher, S. Clement
Measuring and testing
Liquid level or depth gauge
Hydrostatic pressure type
73307, G01F 2316
Patent
active
041063384
ABSTRACT:
A float valve on the bottom of a submerged purging tube in a liquid storage tank detects water in the bottom of the tank below a liquid therein of a lesser specific gravity. When such water or other heavier liquid is detected by the float valve, the purging orifice leading to the purging tube is closed and further pressurizing of the purging tube will result in an associated gage registering the presence of water in the tank.
REFERENCES:
patent: 2559436 (1951-07-01), Isserstedt
patent: 3572121 (1971-03-01), Kesserv
Control Marketing Associates
Swisher S. Clement
Weaver D. Paul
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