Patent ID: 8485267
Filing Date: 2013-07-16
Classification: E21B,F16L

Abstract:
1. A fluid-driven connector for mineral extraction equipment, comprising: a first piston configured to move axially relative to an axis of the fluid-driven connector with a first axial range of movement responsive to a first fluid pressure applied to a first fluid chamber; a first fastener configured to move radially relative to the axis of the fluid-driven connector with a first radial range of movement responsive to the first axial range of movement of the first piston; a second piston configured to move axially relative to the axis of the fluid-driven connector with a second axial range of movement responsive to a second fluid pressure applied to a second fluid chamber; and a second fastener configured to move radially relative to the axis of the fluid-driven connector with a second radial range of movement responsive the second axial range of movement, wherein the first and second pistons are disposed in a coaxial arrangement one around another.