Patents by Inventor Wilhelm Papst

Wilhelm Papst 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).

  • Coal-cutting machine having horizontally swivellable jib boom and vertically swivellable loading means
    Patent number: 4998777
    Abstract: A coal-cutting machine (1) having an all-round swivelling jib boom (6), on which cutting implements (17) are rotatably supported, and a loading platform (3) comprising a loading platform which can swivel about an axis (4) extending transversely to the longitudinal direction of the machine. The loading platform (3) is angularly, rigidly connected to the swing gear (5) for the swivelling of the jib boom (6) in a horizontal direction and is supported on the machine frame (1) so as to swivel, together with the swing gear (5), about the axis (4) extending transversely to the longitudinal direction of the machine. As a result of this construction which a particularly low overall height is made possible while safely preventing a collision between the jib boom (6) and the loading platform (3).
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: March 12, 1991
    Assignee: Voest-Alpine Maschinenbau Gesellschaft m.b.H.
    Inventors: Otto Schetina, Arnulf Kissich, Werner Stecher, Helmut Habenicht, Wilhelm Papst, Bernhard Pleterski