Patent ID: 11953117
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 18:
19. 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.