Patents by Inventor Ernst Praudisch

Ernst Praudisch 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).

  • Cross country skiing boot fitting into a device for the lateral guidance thereof of the ski
    Patent number: 4312141
    Abstract: The cross country skiing boot fitting into a device carrying a plate (8) with preferably one, two or more parallel longitudinal ribs (9) has corresponding parallel depressions (10) in the sole (5). These ribs engage in the depressions and provide lateral guidance for the long distance skiing boot, specifically during descents. The relative movement of the boot (3) with respect to the ski (1) is not impeded during cross country skiing, neither special engagement nor disengagement being unnecessary.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: January 26, 1982
    Assignee: Bata Schuh AG
    Inventors: Hubert Mayer, Ernst Praudisch