Patents by Inventor Kurt Helf

Kurt Helf 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).

  • All-wheel drive motor vehicle
    Patent number: 7464779
    Abstract: An all-wheel drive motor vehicle having at least two wheel axles and comprising an electrical or hydraulic drive unit having a plurality of electric or hydraulic motors connected to an electrical or hydraulic energy source. Each motor is associated with a drive wheel and drives such wheel via a transmission. The motors that are associated with a given one of the wheel axles are adapted to be coupled with one another via a shiftable transverse locking device. At least one of the motors on a first side of the vehicle is adapted to be coupled, via a shiftable longitudinal locking device, with one of the motors associated with a different one of the wheel axles on the same side or on a second side of the vehicle.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: December 16, 2008
    Assignee: Krauss-Maffei Wegmann GmbH & Co. KG
    Inventors: Norbert Grabmaier, Kurt Helf
  • All-wheel drive motor vehicle
    Publication number: 20060243512
    Abstract: An all-wheel drive motor vehicle having at least two wheel axles and comprising an electrical or hydraulic drive unit having a plurality of electric or hydraulic motors connected to an electrical or hydraulic energy source. Each motor is associated with a drive wheel and drives such wheel via a transmission. The motors that are associated with a given one of the wheel axles are adapted to be coupled with one another via a shiftable transverse locking device. At least one of the motors on a first side of the vehicle is adapted to be coupled, via a shiftable longitudinal locking device, with one of the motors associated with a different one of the wheel axles on the same side or on a second side of the vehicle.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Inventors: Norbert Grabmaier, Kurt Helf