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 an outer housing, actuation rod, indicator flag, and follower. The actuation rod is positioned within the outer housing, which is couplable to a tail stem protector of the valve. The actuation rod may have a helical slot formed therein. The actuation rod may be rotatably coupled to the outer housing. The indicator flag may be coupled to the actuator rod and may extend radially therefrom. The follower may be couplable 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 into the helical slot of the actuation rod when the valve position indicator is coupled to the tail stem protector.
Claims16
A valve comprising:
- a valve housing, the valve housing having a central bore;
- a gate positioned within the valve housing;
- a tail stem, the tail stem coupled to the gate and extending from the valve housing;
- a tail stem protector, the tail stem protector coupled to and extending from the valve housing, the tail stem protector positioned about the tail stem, the tail stem protector having a slot formed therein and extending longitudinally along the tail stem protector;
- and
- a valve position indicator, the valve position indicator including:
- an outer housing, the outer housing coupled to the tail stem protector such that the slot of the tail stem protector is aligned with the outer housing, the outer housing including an opening;
- an actuation rod, the actuation rod positioned within the outer housing and extending at least partially through the opening in the outer housing, the actuation rod having a helical slot formed therein;
- an indicator flag, the indicator flag coupled to the actuation rod and extending radially therefrom;
- and
- a follower, the follower coupled to the tail stem, the follower extending in a direction perpendicular to the extent of the tail stem, the follower extending through the slot in the tail stem protector and into the helical slot of the actuation rod.
A valve position indicator for a valve, the valve position indicator comprising:
- an outer housing, the outer housing coupled to the tail stem protector such that the slot of the tail stem protector is aligned with the outer housing, the outer housing including an opening;
- an actuation rod, the actuation rod positioned within the outer housing and extending at least partially through the opening in the outer housing, the actuation rod having a helical slot formed therein;
- an indicator flag, the indicator flag coupled to the actuation rod and extending radially therefrom;
- and
- a follower, the follower coupled to the tail stem, the follower extending in a direction perpendicular to the extent of the tail stem, the follower extending through the slot in the tail stem protector and into the helical slot of the actuation rod.
Dependencies are inferred from the claim text.