Patents by Inventor Mathias Raulf

Mathias Raulf 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).

  • Patent number: 6286820
    Abstract: A pneumatic spring having a vibration damper and a rolling bellows which defines a spring chamber. The rolling bellows is actively connected at one end to the vibration damper which has a container pipe which possesses a connecting bearing to a motor vehicle chassis. The connecting bearing is arranged in the region of the outer surface of the container pipe. The connecting bearing is of circular design and possesses a sealing ring which seals the spring chamber. Furthermore, the connecting bearing can be designed as a pivot bearing, having at least one universal ball joint in conjunction with a ball socket. Optionally, an air direction device may be assigned to the pneumatic spring, producing a targeted air flow onto the container pipe.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: September 11, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Mathias Raulf, Wolfgang Kolb, Thomas Eichenmüller, Dieter Lutz