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US 2015/0129062 A1Published application
Valve Position Translator
AssigneeCameron International 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.
Claims9
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 to represent the position of the valve based on rotary motion provided to the valve position indicator;
- wherein the valve position translator combines linear and rotary motion of the plug to produce rotary motion indicative of the valve fully opening or closing and provides the produced rotary motion to the valve position indicator.
2 more elements
A valve motion converter, comprising:
- a rod disposed in a slotted cam tube, a first slot of the tube disposed to convert linear motion of the rod to rotary motion of the tube, and a second slot of the tube extending at an angle from the first slot, the second slot disposed to transfer rotary motion of the rod to the tube.
Dependencies are inferred from the claim text.