Volumetric filter for liquid level measurement devices

Details Volumetric filter for liquid level measurement devices Volumetric filter for liquid level measurement devices

1982-08-25

1984-02-07

Adee, John

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Diverse sensing means

2105321, B03D 300

Patent

active

044302126

ABSTRACT:
A volumetric filtering device is provided for use in a liquid level measuring apparatus. The device includes a communicating passageway between a first container for the liquid and a second container in which the measurement is to be made. The communicating passageway is provided with a first opening to the first container and a second opening to the second container, the first opening being located at a higher vertical displacement than the second opening. The described filter prevents passage of suspended particles, sediments, solids and other precipitants, as well as the passage of air bubbles, from the first container to the second container. The filter structure is also useful to prevent passage of a buoyant liquid, floating in a layer above the liquid to be measured, from the first to the second container. The passageway is volumetrically chosen to assure that none of the buoyant liquid will pass therethrough. A further vertical tubular component is provided to reduce the volumetric requirements of the communicating passageway. The tubular component includes an inlet-drain hole and a vent hole, both in communication with the liquid in container 1, and a sensing port in communication with the upper opening of the communicating passageway.

REFERENCES:
patent: 1150360 (1915-08-01), Grevemberg
patent: 1416899 (1922-05-01), Sirch
patent: 2468791 (1949-05-01), Thompson
patent: 2762511 (1956-09-01), Sternaman

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