Patents by Inventor Robert Poos

Robert Poos 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).

  • Adjustable press tool
    Patent number: 4408477
    Abstract: The press tool as disclosed is provided for making tubes or pipes at a diameter of 600 millimeters or more and a diameter-to-wall-thickness ratio of 13 or more. In order to permit employment of the tool for a relatively wide range of dimensions without requiring extensive retooling, it is suggested that the tool is comprised of a stationary centerpiece and side pieces, which are hinged to the centerpiece and held in position by spacer bars acting as adjustable cams.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: October 11, 1983
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Rolf Kummerling, Robert Poos, Thomas Pentzien, Karl-Heinz Papierok