Inertially stable actuator with telescoping supply port

An apparatus for actuating a valve, the apparatus comprising:

• an actuator body with a cylindrical sidewall and having a proximal end and a distal end, the proximal end having a connector for selectively attaching the actuator body to a valve assembly;
• a piston assembly located within the proximal end of the actuator body, an outer diameter of a piston cylinder of the piston assembly being static relative to, circumscribed by, and concentric with, the cylindrical sidewall of the actuator body, the piston assembly having a piston with a pressure surface facing the distal end of the actuator body and an outer diameter surface that sealingly engages an inner diameter of the piston cylinder;
• and
• a telescoping port assembly with a central axis, the telescoping port assembly extending from the distal end of the actuator body to the piston assembly, the telescoping port assembly having an inner telescoping member and an outer telescoping member with an inner cavity that reciprocatingly receives an end of the inner telescoping member;
• wherein
• the telescoping port assembly includes an outlet in fluid communication with a pressure cavity of the piston assembly such that pressure media injected into the telescoping port assembly acts on the pressure surface of the piston to move the piston towards the proximal end of the actuator body.

An apparatus for actuating a valve, the apparatus comprising:

• an actuator body with a proximal end and a distal end, the proximal end having a connector selectively attached to a valve assembly;
• a piston assembly located within the proximal end of the actuator body;
• a telescoping port assembly extending from the distal end of the actuator body to the piston assembly and having:
• a telescoping port portion having an outer telescoping member that circumscribes and reciprocates with respect to an inner telescoping member that is fixed to the distal end of the actuator body;
• and
• a solo port portion having one end connected to the outer telescoping member of the telescoping port portion and an opposite end connected to a piston of the piston assembly and movable with the piston inside of a piston cylinder of the piston assembly, the piston cylinder being static relative to the actuator body.

An apparatus for actuating a valve, the apparatus comprising:

• an actuator body with a cylindrical sidewall and having a proximal end and a distal end, the proximal end having a connector for selectively attaching the actuator body to a valve assembly;
• a piston assembly located within the proximal end of the actuator body, an outer diameter of a piston cylinder of the piston assembly being static relative to, circumscribed by, and concentric with, the cylindrical sidewall of the actuator body, the piston assembly having a piston with a pressure surface facing the distal end of the actuator body and an outer diameter surface that sealingly engages an inner diameter of the piston cylinder;
• and
• a telescoping port assembly with a central axis, the telescoping port assembly extending from the distal end of the actuator body to the piston assembly, the telescoping port assembly having an inner telescoping member and an outer telescoping member with an inner cavity that reciprocatingly receives an end of the inner telescoping member;
• wherein the telescoping port assembly has an internal bore for providing fluid communication between a pressure media supply fitting at the distal end of the actuator body and the pressure surface of the piston so that as the apparatus moves between a contracted position and an extended position, relative axial movement between the outer telescoping member and the inner telescoping member shortens or lengthens the internal bore of the telescoping port assembly.