Patents by Inventor Herbert Seelmann

Herbert Seelmann 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).

  • Controls for differential speed controlled vehicle
    Patent number: 4458485
    Abstract: A control is provided for the drive of a motor vehicle with differential-speed steering and with a hydrostatic power transmission unit on each side of the vehicle, where the adjusting element of each of the two power transmission units is provided with a spring-loaded adjusting piston that can be acted upon by control pressure, in which case two pairs of control pressure pick-offs are provided, of which two are assigned to forward and backward movement and the other two are assigned to cornering, where a pressure-dependent switchable pilot valve is installed in the connecting line between a control pressure pick-off assigned to a cornering direction and the adjusting element of the assigned power transmission unit, the pilot valve connects this control pressure pick-off assigned to the cornering direction with a specific pressure chamber of the adjusting element of the power transmission unit on the side of the vehicle on the inside of the curve, so that through actuation of the control pressure pick-off dete
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: July 10, 1984
    Assignee: Linde Aktiengesellschaft
    Inventor: Herbert Seelmann