Patents by Inventor Dierk Duerwald

Dierk Duerwald 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).

  • Multiple wheel steering mechanism
    Patent number: 4589510
    Abstract: A multiple wheel steering mechanism is disclosed, wherein a single front wheel by way of example is steerable directly and carries a sideways extending lever, connected by means of a rod to a lateral extension of an intermediate lever in the rear, the connection runs obliquely to the longitudinal axis of the vehicle and the intermediate lever and through steering rods and a lever mechanism is connected to individual journal mounts and bearing for the rear wheels, steering them in unison about separate vertical axes.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: May 20, 1986
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Dierk Duerwald, Jurgen Cittrich