Abstract: A mechanical feedthrough for a pressure vessel having an outer wall including a cylinder extending through the outer wall. A piston is positioned within and movable relative to the cylinder to transmit at least one of rotational and axial movement through the outer wall of the pressure vessel. A flange of the piston engages a wall of the cylinder to define first and second pressure cavities on opposing sides of the flange. A first fluid passageway fluidly connects the first pressure cavity with a low pressure side of the outer wall such that low pressure forces acting on the piston are counteracted by low pressure forces acting on the flange. A second fluid passageway fluidly connects the second pressure cavity with a high pressure side of the outer wall such that high pressure forces acting on the piston are counteracted by high pressure forces acting on the flange.

Abstract: A mechanical feedthrough for a pressure vessel having an outer wall including a cylinder extending through the outer wall. A piston is positioned within and movable relative to the cylinder to transmit at least one of rotational and axial movement through the outer wall of the pressure vessel. A flange of the piston engages a wall of the cylinder to define first and second pressure cavities on opposing sides of the flange. A first fluid passageway fluidly connects the first pressure cavity with a low pressure side of the outer wall such that low pressure forces acting on the piston are counteracted by low pressure forces acting on the flange. A second fluid passageway fluidly connects the second pressure cavity with a high pressure side of the outer wall such that high pressure forces acting on the piston are counteracted by high pressure forces acting on the flange.

Abstract: A modular and scalable high optical fiber count connector assembly (800) is formed by engagement mating of a plug connector (500) to a receptacle connector (700). The plug connector (500) includes a plug shell unit (200) and a pin subassembly unit (400), which includes a plurality of small form factor engagement mate pin connectors (100). The plug connector (500) is formed by inserting the pin subassembly unit (400) into the plug shell unit's (200) hollow body (230). The receptacle connector (700) includes a receptacle shell unit (300) and a socket subassembly unit (600), which includes a plurality of small form factor engagement mate socket connectors (150). The receptacle connector (700) is formed by inserting the socket subassembly unit (600) into the receptacle shell unit (300) hollow body (330).