Patents by Inventor Jörn-Rainer Quast

Jörn-Rainer Quast 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: 6375172
    Abstract: A hydraulically-damping engine bearing includes a restrictedly deflectable diaphragm separating first and second fluid-filled primary chambers that are bordered at least partially by elastic walls. At least one channel is connected between the first and second primary chambers. An arrangement is connected for adjusting a characteristic of the bearing. The arrangement includes an auxiliary suspension spring that, with the wall of one of the chambers, forms an auxiliary chamber, whereby one of the primary chambers is connectable to the auxiliary chamber via a controllable flow connection.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: April 23, 2002
    Assignee: Mannesmann Boge GmbH
    Inventors: Ernst Bungart, Heinrich Meyer, Jörn-Rainer Quast