Patents by Inventor Franz Landerl

Franz Landerl 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).

  • Protection arrangement for a casting jet emerging from a metallurgical vessel
    Patent number: 4402437
    Abstract: A protection arrangement for a casting jet emerging from a metallurgical vessel includes a protective tube enveloping the casting jet and fastened to an articulation-rod assembly that is pivotable into any space direction. In order to be able to follow any desired position of the casting jet with the protective tube, the articulation-rod assembly includes a first, vertically extending, four-bar linkage parallelogram which is mounted with its vertically arranged web so as to be rotatable about a vertical axis. To its coupler, an extension arm carrying the protective tube is hinged, forming the oscillating crank of a second four-bar linkage. The web of the second four-bar linkage is formed by an oscillating crank of the first four-bar linkage parallelogram.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: September 6, 1983
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Walter Fortner, Erich Misera, Franz Landerl, Gunther Robiczek, Meinhard Berger