Patents by Inventor Gerhard Rothfischer

Gerhard Rothfischer 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).

  • Electro-hydrodynamic superimposed steering system
    Patent number: 7201691
    Abstract: A superposition steering system for tracklaying or wheeled vehicles with nonpivoting wheels with a drive system (1) and a zero shaft (10, 10?) to transfer the drive power from one drive side to the other, via at least one steering differential gear (9), wherein the zero shaft (10, 10?) can be driven from a power fraction branched off from the drive system (1) and at least one electric motor (2, 2?).
    Type: Grant
    Filed: October 4, 2003
    Date of Patent: April 10, 2007
    Assignee: Renk Aktiengesellschaft
    Inventors: Max Witzenberger, Gerhard Rothfischer
  • Electro-hydrodynamic superposition steering system
    Publication number: 20060019787
    Abstract: A superposition steering system for tracklaying or wheeled vehicles with nonpivoting wheels with a drive system (1) and a zero shaft (10, 10?) to transfer the drive power from one drive side to the other, via at least one steering differential gear (9), wherein the zero shaft (10, 10?) can be driven from a power fraction branched off from the drive system (1) and at least one electric motor (2, 2?).
    Type: Application
    Filed: October 4, 2003
    Publication date: January 26, 2006
    Inventors: Max Witzenberger, Gerhard Rothfischer