Patents by Inventor Stefan Rasman

Stefan Rasman 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).

  • Combined gearbox with stepless variable speed ratio
    Patent number: 4147075
    Abstract: A stepless variable speed gearbox employing a parallel combination of a hydrodynamic drive and a variable speed drive, with a coupling arrangement including an overrunning or disconnecting clutch to disconnect the hydrodynamic drive when the variable speed drive comes up to a given speed.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: April 3, 1979
    Assignee: Turcianske Strojarne
    Inventors: Stefan Rasman, Pavol Hegedus, Pavol Habarda