Fluent material handling – with receiver or receiver coacting mea – Automatic control of flow cutoff or diversion – Level or overflow responsive
Patent
1975-08-11
1977-02-08
Aegerter, Richard E.
Fluent material handling, with receiver or receiver coacting mea
Automatic control of flow cutoff or diversion
Level or overflow responsive
137386, B65B 326, B65B 5714
Patent
active
040067629
ABSTRACT:
A system for controlling the liquid level in a tank such as a fuel tank. The system includes a main inlet valve and a jet level sensor mechanism. Redundant relay valves which are fluid-pressure responsive are interconnected between the inlet valve and the jet level sensor to cause the inlet valve to shut off when the fluid within the tank reaches a pre-determined level. The inlet of the jet level sensor is connected through a pair of shut-off valves to the inlet valve to thus provide a source of liquid to flow through the jet level sensor. The shut-off valves are connected to be responsive to an over pressure condition which might exist in the tank which is being filled or an over pressure condition at the inlet resultant from excessive fluid pressure at the source thereof.
The liquid level control system is modularized by providing a plurality of plate members formed of molded plastic. Each of the plate members is constructed in such a way as to provide the various porting and interconnection between the valves and the jets. A common diaphragm member is utilized for each of the pressure-responsive valves with one side of the diaphragm being connected in the case of each of the valves to a different fluid pressure source for operation thereof.
REFERENCES:
patent: 3811486 (1974-05-01), Wood
Aegerter Richard E.
Schmidt Frederick R.
Textron Inc.
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