Level indicator for liquid contained in a reservoir

Details Level indicator for liquid contained in a reservoir Level indicator for liquid contained in a reservoir

1977-11-14

1979-04-24

Swisher, S. Clement

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

G01F 2314, G01F 2316

Patent

active

041505697

ABSTRACT:
A level indicator for monitoring liquid contained in a reservoir. The indicator comprises a tubular probe which has one end immersed in the liquid and the other end connected to an inlet orifice to a gas-filled chamber in a housing. The gas-filled chamber is connected to a liquid column manometer and an external gas reserve. A valve is located in the inlet orifice to control communication between the gas filled chamber and the probe. A venting duct controls the development of a pressure drop in the gas-filled chamber to establish a permanent connection between the gas reserve and probe irrespective of the position occupied by the valve.

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