Patents by Inventor Ernst Preinknoll

Ernst Preinknoll 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).

  • Device for changing reels at paper machines
    Patent number: 6253818
    Abstract: The invention refers to a process for changing reels at paper machines, particularly tissue machines. It is mainly characterized by adhesive being applied to an empty reel over almost the entire web width, the core shaft being placed thus prepared on the moving paper web, the paper web being detached across its entire width from the reel currently in use, then secured immediately to the empty core shaft as the paper continues to be wound on the reel. In addition, the invention refers to a device for implementing the process, where an adhesive application device is provided, which is installed on a movable mounting on a winding device at least above the paper web area, at right angles to the web running direction.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: July 3, 2001
    Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
    Inventor: Ernst Preinknoll