US Patent 6966412 Position-sensitive shock absorber

A position-sensitive shock absorbing device with a single cast body construction is provided. The device has a tubular member, a moveable piston within the tubular member, a first hydraulic fluid chamber defined by an interior volume of the tubular member, a bypass member attached to an outside area of the tubular member. The bypass member surrounds a portion of the tubular member and a second hydraulic fluid chamber is defined by a volume between the tubular member and the bypass member. A first and a second opening in a side of the tubular member are arranged such that the openings are fluidly connected with each other and with both the first and second hydraulic fluid chamber.