Apparatus incorporating a splashed-liquid, normally-closed check

Details Apparatus incorporating a splashed-liquid, normally-closed check Apparatus incorporating a splashed-liquid, normally-closed check

1981-07-23

1984-10-02

Schwadron, Martin P.

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137351, 1375133, 137540, 137541, 137590, 55385C, 55417, F16K 1500

Patent

active

044741898

ABSTRACT:
An apparatus incorporating a normally-closed check valve mounted on the inlet end of a vapor withdrawal conduit and located in the upper vapor portion of a partially filled pressurized LP gas tank on a recreational vehicle or the like. The outlet end of the vapor withdrawal conduit extends to a point lower and exterior to the volatile liquid container and is connected to a control valve to stop the flow of fluid. As the control valve is opened to allow fluid to pass. Then the pressure in the vapor withdrawal conduit drops. The check valve opens and allows gases from the volatile liquid container to pass down the tube. After the control valve is closed, the pressure in the vapor withdrawal conduit increases till it equals the pressure in the container. The check valve closes and stops the flow of fluid.
When the apparatus is used in a movable mode, such as on a vehicle, the check valve is closed, preventing the volatile liquid contained in the container from being splashed into the vapor withdrawal conduit. This prevents possible damage to gas consuming devices by liquid entering the vapor withdrawal conduit and in turn the gas consuming device when the control valve is opened.

REFERENCES:
patent: 2217582 (1940-10-01), White
patent: 2460159 (1949-01-01), White

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