Valve including a valve stem with a combination threaded and splined section
AssigneeFMC Technologies, Inc.
InventorsCameron Hackney Kusmertz, Zac Michael LeBlanc
Life of this patent
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Abstract
One illustrative embodiment of a valve disclosed herein comprises a body (12), a valve stem (22) that comprises a combination threaded-splined section (22X) and an unthreaded section (22Y) wherein the combination threaded-splined section (22X) comprises at least one spline (22S) and a thread (22Z). The valve (10) also comprises an anti-rotation ring (26) that includes at least one tab (26T) positioned in the at least one spline (22S) of the combination threaded-splined section (22X) and a threaded drive nut (24) that is adapted to engage the thread (22Z) of the combination threaded-splined section (22X).
Claims24
A valve, comprising:
- a body;
- a valve stem comprising a combination threaded-splined section and an unthreaded section, the combination threaded-splined section comprising at least one spline and a thread;
- an anti-rotation ring comprising at least one tab positioned in the at least one spline of the combination threaded-splined section;
- and
- a threaded drive nut that is adapted to engage the thread of the combination threaded-splined section, wherein at least a portion of the combination threaded-splined section is adapted to translationally move through the anti-rotation ring when the threaded nut drive is rotationally actuated to translationally move the valve stem within the valve.
A valve, comprising:
- a body;
- a valve stem comprising a combination threaded-splined section and an unthreaded section, the combination threaded-spline section comprising a plurality of splines and a plurality of spaced-apart axial thread segments that are radially spaced around an outer perimeter of the combination threaded-splined section;
- an anti-rotation ring comprising a plurality of tabs, each of the plurality of tabs being positioned in one of the plurality of splines of the combination threaded-splined section;
- and
- a threaded drive nut that is adapted to engage the plurality of spaced-apart axial thread segments of the combination threaded-splined section, wherein at least a portion of the combination threaded-splined section is adapted to translationally move through the anti-rotation ring when the threaded nut drive is rotationally actuated to translationally move the valve stem within the valve.
A valve, comprising:
- a body;
- a valve stem comprising a combination threaded-splined section and an unthreaded section, the combination threaded-spline section comprising a single spline that defines a partial ring thread segment that extends partially around an outer perimeter of the combination threaded-splined section;
- an anti-rotation ring comprising a single tab that is positioned in the single spline of the combination threaded-splined section;
- and
- a threaded drive nut that is adapted to engage the partial ring thread segment of the combination threaded-splined section, wherein at least a portion of the combination threaded-splined section is adapted to translationally move through the anti-rotation ring when the threaded nut drive is rotationally actuated to translationally move the valve stem within the valve.
Dependencies are inferred from the claim text.