Patents by Inventor Johannes-Ulrich Weiss

Johannes-Ulrich Weiss 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).

  • Means and method for removing trapped billets from indirect extrusion press
    Patent number: 4809531
    Abstract: Metal billets trapped in the billet container of an indirect extrusion press are removed by indirect extrusion in the reverse direction until the billet size is reduced sufficiently for the residue to be expelled bodily from the container. The stem used to support the container-closing plug constitutes, or is replaced by a stem for effecting the reverse indirect extrusion.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: March 7, 1989
    Assignee: SMS Schloeman-Siemag Aktiengesellschaft
    Inventors: Franz-Josef Zilges, Johannes-Ulrich Weiss