Measuring and testing – Liquid level or depth gauge – Float
Patent
1980-05-02
1982-11-30
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Float
73317, 141 95, 277135, 338 33, F04B 4904, G01F 2310
Patent
active
043610390
ABSTRACT:
A tank wagon for transporting liquid material has a suction pump for drawing liquid material into the tank. Various sensing devices are used to prevent over filling so that material drawn into the tank does not reach the pump. In one form, a float valve in the vacuum conduit shuts the same and/or electrodes are positioned to sense the material level and energize a relay-operated switch that stops the engine driving the pump. Several indicators in the form of lamps or an acoustic horn are operated by short-circuiting electrodes within the tank and give a signal or indication of the liquid level within the tank. In a further embodiment, a float within the tank actuates an ammeter outside the tank to give a signal or reading of the liquid level within the tank.
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Mason William B.
Yasich Daniel M.
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