Float valve
AssigneeGas Research Institute
InventorsDaoud A. Jandal, Jeffrey S. Seewald, Ralph C. Mullally, William J. Plzak
Life of this patent
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Abstract
A float valve having a pair of valve plugs mounted on a single valve stem employing a flexible or pivoting couple between the float and the valve stem that allows the float to tilt and move laterally with respect to the axis of movement of the valve stem without affecting the alignment of the valve plugs in relation to their respective valve outlets. This flexible couple might also allow for some free movement of the float in the direction of the axis of movement of the valve stem. In one embodiment the valve plugs have ported sealing surfaces that allow gradual starting and stopping of the flow of fluid through the valve outlets.
Claims9
A valve comprising:
- a valve body having an inlet, a first outlet and a second outlet;
- a first valve plug and a second valve plug adapted to seal the first and second outlets, the valve plugs being mounted on a valve stem;
- a float disposed within the valve body and guided therein by guide alignment means;
- and
- a freely moveable coupling member for connecting the float to the valve stem movably mounted with respect to the valve stem and being contiguous with at least one of said valve plugs in all positions of said valve plus, said freely moveable coupling member is constructed and arranged to permit movement of the float valve within a predetermined limit when said float engages at least one end of said float guide alignment means in at least one of said valve positions.
Dependencies are inferred from the claim text.