Automatic liquid-supply stopper plug

Details Automatic liquid-supply stopper plug Automatic liquid-supply stopper plug

1982-05-13

1984-04-24

Rolla, Joseph J.

Fluid handling

Liquid level responsive or maintaining systems

With control fluid connection at desired liquid level

13762538, 141198, 222 64, F16K 2118

Patent

active

044442220

ABSTRACT:
An automatic liquid-supply stopper plug has a casing body which has an inlet port and a discharge port. Within the casing body, an inverted cup shaped member and a valve seat member are provided to be opposed to each other. A movable valve member is positioned so that it can slide on the inverted cup shaped member and the valve seat member to open or close a passage of liquid through the valve seat member. A first conduit which communicates with the discharge port is provided for pushing the movable member upwardly. A second conduit which communicates with the discharge port is provided for pushing the movable valve member downwardly when a preset level of liquid is obtained to stop the liquid-supply.

REFERENCES:
patent: 3631891 (1972-01-01), Brumm
patent: 4191208 (1980-03-01), Mylander

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