Patents by Inventor Hans J. Zenner

Hans J. Zenner 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).

  • Patent number: 5433903
    Abstract: A brick press for the production of formed bodies from free-flowing materials has a measuring and comparison device, in which pressing force and press path are detected from the beginning of the pressing process and are compared with a preset pressure curve, which represents the pressure/path setpoint value of the pressing process. Any deviations from the force/path setpoint value determined outside a range of tolerance of pressure curve are used as a signal for early ending of the pressing process. Reject formed bodies resulting in this case can be crushed effortlessly and again recycled in the initial material to be pressed without subsequent treatment. A process is also disclosed for the control and regulation of the pressing process.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: July 18, 1995
    Assignee: Laeis-Bucher GmbH
    Inventors: Hans U. Hauser, Hans J. Zenner, Martin Mick