Actuator
AssigneeSRI Energy, Inc.
InventorAlagarsamy Sundararajan
Life of this patent
Estimating the term…
Abstract
A valve actuator assembly having an actuator housing coupled to a bonnet and a housing lid. A hydraulic cylinder is positioned within the actuator housing and directly coupled to the bonnet. A piston is positioned within the hydraulic cylinder and coupled to a spring lifter assembly and a spring is positioned within the actuator housing and having a first end and a second end, the first end being coupled to a lower surface of the housing lid, and the second end being coupled to the spring lifter assembly. An operating stem is coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly.
Claims1
A valve actuator assembly comprising:
- an actuator housing coupled to a bonnet and a housing lid;
- a hydraulic cylinder positioned within the actuator housing and coupled to the bonnet;
- a piston positioned within the hydraulic cylinder and coupled to a spring lifter assembly;
- a spring positioned within the actuator housing and having a first end and a second end, the first end coupled to a lower surface of the housing lid, and the second end coupled to the spring lifter assembly;
- and
- an operating stem coupled to the piston, positioned in a channel, and extending through the bonnet to a valve body assembly.
Dependencies are inferred from the claim text.