Valve position indicator
AssigneeCactus Wellhead, LLC
InventorJerod C. BUSHMAN
Life of this patent
Estimating the term…
Abstract
A valve position indicator for a valve includes a spline barrel, indicator flag, and follower. The spline barrel may be generally tubular and may be positionable about a tail stem protector of the valve. The spline barrel may have a helical slot formed therein. The spline barrel may be rotatably coupled to the tail stem protector of a valve. The indicator flag may be coupled to the spline barrel and may extend radially therefrom. The follower may be coupleable to a tail stem of the valve. The follower may extend in a direction perpendicular to the extent of the tail stem. The follower may extend through a slot in the tail stem protector and the helical slot of the spline barrel when the spline barrel is positioned about the tail stem protector.
Claims12
1-10. (canceled)
A valve position indicator for a valve, the valve position indicator comprising:
- a spline barrel, the spline barrel being generally tubular and positionable about a tail stem protector of the valve such that the tail stem protector is at least partially within an interior of the spline barrel, the spline barrel having a helical slot formed therein, the spline barrel rotatably coupled to the tail stem protector;
- an indicator flag, the indicator flag coupled to the spline barrel and extending radially therefrom;
- and
- a follower, the follower coupleable to a tail stem of the valve, the follower extending in a direction perpendicular to the extent of the tail stem, the follower extending through a slot in the tail stem protector and the helical slot of the spline barrel when the spline barrel is positioned about the tail stem protector.
21-22. (canceled)
Dependencies are inferred from the claim text.