Device for braking float motion in float-type liquid level gauge

Details Device for braking float motion in float-type liquid level gauge Device for braking float motion in float-type liquid level gauge

1979-03-23

1980-10-28

Goldberg, Gerald

Measuring and testing

Liquid level or depth gauge

Float

G01F 2310

Patent

active

042299730

ABSTRACT:
A device for braking the motion of the float of a float type liquid-level gauge used with a liquid container, comprising a casing, a vane member disposed in the casing in such a manner as to produce a motion relative to the casing, a fluid placed to fill the inner space of the casing now containing the vane member and retaining an extra space for permitting the relative motion of the vane member, and a path formed in the casing to permit flow of the fluid inside the inner space of the casing during the aforementioned relative motion of the vane member inside the casing. In actual use, the casing is fixed in position and the vane member is connected with a member adapted to move in conjunction with the float of the float type liquid-level gauge. When a sudden, momentary displacement occurs in the liquid level in the liquid container with which the liquid-level gauge is used, the float kept on the liquid surface by buoyant force tends to follow the displacement. Since the float is connected with the vane member, any motion of the float in excess of a prescribed level is braked by the resistance offered by the fluid during its flow through the path in the casing. Thus, otherwise possible erroneous detection of the liquid level by the liquid-level gauge is prevented.

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