Patent ID: 7172058

Claim:
A vibration damper with amplitude dependent damping force, said vibration damper comprising: a cylinder; a piston rod which is axially movable in the cylinder; a housing having a tubular part and a bottom part, wherein the tubular part is connected to said piston rod and has the same outside diameter as said piston rod; a piston carried by the bottom part, the piston dividing the cylinder into a working space on a piston rod side of the piston and a working space away from the piston rod; a separating body supported inside the housing with freedom to move axially, said separating body dividing the housing into first and second working chambers; a radial connecting opening connecting the first working chamber to the working space on the piston rod side; and a connecting channel connecting the second working chamber to the working space away from the piston rod; wherein said tubular part is connected to one of said piston rod and said bottom part by a weld.