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.
Claims10
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.
Dependencies are inferred from the claim text.