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US 10,295,078 B2Granted
Valve position translator
AssigneeCameron Internationa Corporation
InventorsWilliam T. Case, Robert H. Wolf
Life of this patent
Estimating the term…
Abstract
Apparatus for determining whether a valve is fully opened or closed. In one embodiment a valve position translator includes a cam tube and a rod. The cam tube has a cylindrical wall. A first slot in the wall is disposed along a radial arc of the tube. A second slot in the wall extends from an end of the first slot at an angle acute to the first slot. The rod extends through the wall, and rotates the cam tube while moving linearly along the cam tube in the second slot and while moving in an arc in the first slot.
Claims7
A valve assembly, comprising:
- a valve, the valve comprising a plug that moves linearly and rotationally to open and close the valve;
- a valve position translator mounted to the valve;
- and
- a valve position indicator mounted to the valve position translator, the valve position indicator being rotatable from a first position to a second position, wherein a first angular orientation of the first position is indicative of the valve being closed, and a second angular orientation of the second position is indicative of the valve being fully open;
- wherein the valve position translator comprises slots and a rod engageable with the slots, the rod being movable in coordination with movement of the plug and a combination of linear and rotary motion of the plug causes only rotation of the valve position indicator.
2 more elements
Dependencies are inferred from the claim text.