Material depth measurement and indicator

Details Material depth measurement and indicator Material depth measurement and indicator

1975-06-27

1976-11-30

Woodiel, Donald O.

Measuring and testing

Liquid level or depth gauge

G01F 2300

Patent

active

039941698

ABSTRACT:
Measurement of the depth of material in a container is achieved through the use of an elongated sensor having a flexible member capable of being maintained in a collapsed condition to the extent of immersion by the material. A fluid control and measurement system in communication with a fluid passage in the sensor defined in part by the flexible member is operable to alternately force fluid into and drawn fluid from the portion of the sensor which is not maintained in a collapsed state by immersion in the material. The quantity of fluid thus measured is an indication of the extent of the sensor not yet covered by the material, and hence an indication of the depth of the material in the container.

REFERENCES:
patent: 1560343 (1925-11-01), Foulk
patent: 3290938 (1966-12-01), Miller
patent: 3401562 (1968-09-01), Reany

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