Patents by Inventor Walter L. Runkel

Walter L. Runkel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hydropneumatic suspension system with stabilization
    Patent number: 5547211
    Abstract: A hydropneumatic vehicle suspension system has two strut assemblies with hydraulic struts that act upon at least one hydropneumatic piston-type accumulator. The accumulator has a separating piston charged with hydraulic pressure on one side of a storage volume, pneumatic pressure on the other side of a spring chamber and a supplementary spring force via a separating piston rod that extends out of the piston-type accumulator. The supplementary spring force is generated by a pressure medium cylinder that acts upon the separating piston rod by connecting the pressure medium cylinder with at least one pressure accumulator that generates a prestress pressure.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: August 20, 1996
    Assignee: Hemscheidt Fahrwerktechnik GmbH & Co.
    Inventor: Walter L. Runkel