Patents by Inventor Walter Wissmann

Walter Wissmann 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).

  • System for continuous treatment of steel strip
    Patent number: 6427706
    Abstract: A pickling tank for the continuous treatment of a steel strip includes a pickling trough and a recovery tank separated from one another by a linkage that allows for limited movement between the trough and recovery tank. The recovery tank includes a pair of press rollers to remove pickling solution from the steel strip. The linkage includes a chute extending from the trough to the recovery tank to contain the pickling solution while allowing for differences between thermal expansion between the pickling trough and recovery tank. In one embodiment, the chute is coupled to the pickling trough and has a free end inserted into the recovery tank. In a second embodiment, the chute includes two telescoping members extending between the trough and recovery tank.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: August 6, 2002
    Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
    Inventors: Walter Wissmann, Hans Krapinger