Abstract: A cylinder for a piston-cylinder assembly comprises an extruded stainless steel cylinder body and stainless steel end caps mounted to opposite ends of the body. A unique configuration of three seals is used to seal each end cap to the cylinder body.

Abstract: A cylinder for a piston-cylinder assembly comprises an extruded stainless steel cylinder body and stainless steel end caps mounted to opposite ends of the body. A unique configuration of three seals is used to seal each end cap to the cylinder body.

Abstract: A linear device includes a housing supporting a central hydraulic or pneumatic cylinder and a pair of support shafts on either side of the central cylinder. The cylinder includes a longitudinally-moveable piston rod which is attached at its distal end to a tooling plate. An alignment coupler is received within a cavity in the tooling plate, and interconnects the cylinder piston rod and the tooling plate. The alignment coupler includes an annular bearing pad with an inner planar surface disposed adjacent an inner endwall of the cavity, and an outer convex curved surface facing away from the inner endwall. A T-shaped operating rod is disposed within the cavity having an annular shoulder flange with a concave curved inner surface adjacent to the curved surface of the bearing pad, and a convex curved outer surface.