Gate valve indicator devices for oil and gas applications
AssigneeSaudi Arabian Oil Company
InventorMohammed E. Mukhlifi
Life of this patent
Estimating the term…
Abstract
An indicator device is provided for indicating a configuration of a gate valve. The indicator device includes a cam that is coupled to a valve stem of the gate valve such that rotation of the valve stem causes rotation of the cam. The indicator device further includes a gear that is coupled to the cam such that rotation of the cam causes movement of the gear and a gauge along which the gear is movable. The gauge displays an indicator that corresponds to the configuration of the gate valve based on a first position of the gear and a second position of the valve stem.
Claims19
An indicator device for indicating a configuration of a gate valve, the indicator device comprising:
- a cam that is coupled to a valve stem of the gate valve such that rotation of the valve stem causes rotation of the cam;
- a gear that is coupled to the cam such that rotation of the cam causes movement of the gear;
- and
- an elongate linear gauge along which the gear is rotatable and translatable, the elongate linear gauge having a fixed position and displaying a movable indicator having an indicator position that corresponds to the configuration of the gate valve based on a first position of the gear and a second position of the valve stem.
A system comprising:
- a gate valve comprising a valve stem;
- and
- an indicator device for indicating a configuration of the gate valve, the indicator device comprising:
- a cam that is coupled to the valve stem of the gate valve such that rotation of the valve stem causes rotation of the cam,
- a gear that is coupled to the cam such that rotation of the cam causes movement of the gear, and
- an elongate linear gauge along which the gear is rotatable and translatable, the elongate linear gauge having a fixed position and displaying a movable indicator having an indicator position that corresponds to the configuration of the gate valve based on a first position of the gear and a second position of the valve stem.
A method of indicating a configuration of a gate valve, the method comprising:
- securing a cam of an indicator device to a valve stem of the gate valve;
- rotating the valve stem of the gate valve and the cam of the indicator device;
- rotating and translating a gear of the indicator device along an elongate linear gauge of the indicator device in response to rotation of the cam, the elongate linear gauge having a fixed position;
- detecting a position of the gear along the elongate linear gauge;
- and
- displaying a movable indicator on the elongate linear gauge, the movable indicator having an indicator position that corresponds to the configuration of the gate valve based on a first position of the gear and a second position of the valve stem.
Dependencies are inferred from the claim text.