Liquid level sensing switch actuator

Details Liquid level sensing switch actuator Liquid level sensing switch actuator

1990-02-09

1990-10-16

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01F 2500

Patent

active

049626612

ABSTRACT:
An actuator for a liquid level sensing switch, particularly useful for testing level sensing switches on storage tanks and tanker cargo tanks. The actuator includes an elongated rod which is slidably supported on and extends through a two part body which may be supported on a flange or a deck portion above the tank. An elongated flexible cable interconnects the rod with a float member of the level sensing switch whereby the actuator rod may be pulled upward to effect movement of the float while, in the normal non-activated position of the actuator, the float may move freely between its limit positions for sensing liquid level in the tank.

REFERENCES:
patent: 3578755 (1971-05-01), Bynum et al.
patent: 3640117 (1972-02-01), Stilling
patent: 3710612 (1973-01-01), Innes et al.

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