Patent ID: 6530220
Filing Date: 2003-03-11
Classification: F15B,F16D

Abstract:
A hydraulic cylinder comprising:a body that inwardly contains a piston that is slidable within an interior cavity of said body, wherein said piston divides said cavity into first and second cavity portions, wherein said piston is attached to a piston rod, wherein said piston rod has a longitudinal axis, and wherein said piston is capable of moving in a direction parallel to said longitudinal axis; and a cylinder head located adjacent said body, wherein said cylinder head inwardly contains a pump, a motor operatively connected to said pump and connectable to a power source, a fluid reservoir, and a main control valve that is capable of being actuated by a user, wherein said fluid reservoir has an elongated shape having a longitudinal axis that is substantially collinear with the longitudinal axis of the piston rod, and wherein when said motor is connected to said power source and said valve is actuated by said user, pressurized fluid can flow from said pump to said main control valve and then through a passage in said cylinder head and into said first cavity portion.