Patents Assigned to Liebherr-Hydraulikagger GmbH
  • Hydraulic cylinder piston
    Patent number: 8191461
    Abstract: The invention relates to a hydraulic cylinder piston comprising a piston rod and a piston connected thereto. In accordance with the invention, the piston can be tensioned with respect to the piston rod via a screw system comprising two threaded rings, with the inner threaded ring of the two threaded rings comprising a removable tensioning element for the application of the pre-tension and with the outer threaded ring being movable relative to the inner threaded ring.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 5, 2012
    Assignee: Liebherr-Hydraulikagger GmbH
    Inventor: Hans-Peter Lavergne