Patents by Inventor Walter Loichinger

Walter Loichinger 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).

  • Electromechanical cross-drive steering transmission for tracklaying vehicles
    Patent number: 6032751
    Abstract: A cross-drive steering transmission serves for steering a tracklaying vehicle and has the following characteristics: at least two fixed mechanical reduction gears which act according to at least two turning radii; in addition an automatic steering radius switching mechanism is provided between the fixed reduction gears (fixed steering radii) and a device for the driver inputting a desired steering radius. Also provided is a control unit which, depending on the steering radius input by the driver, switches among a plurality of the fixed steering radii and approximates the desired steering radius.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: March 7, 2000
    Assignee: ZF Friedrichshafen AG
    Inventors: Walter Loichinger, Johannes Sorg
  • Protection device for a steering transmission of a tracked vehicle
    Patent number: 5730677
    Abstract: A protection device for a steering transmission of a tracked vehicle having a plurality of planetary gear sets capable of engaging different ratios for cornering in curves with different radii. The input and output speeds of the steering transmission and the transmission ratios are determined and compared with predetermined operating parameters in order to determine if clutch slippage is occurring. If slippage is detected, the steering transmission is thereupon temporarily disengaged.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: March 24, 1998
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Sorg, Walter Loichinger