Patents by Inventor Walter Siemens

Walter Siemens 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).

  • Process and apparatus for breaking off marginal edge portions from a glass pane
    Patent number: 4371103
    Abstract: The invention relates to a process and apparatus for breaking off the marginal strip of a glass blank scored according to a predetermined contour. The glass blank, resting with its entire surface on an elastically resilient support, is put under tensile stresses in the area of the marginal strip by lowerable pressure tools.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: February 1, 1983
    Assignee: Saint-Gobain Vitrage
    Inventors: Walter Siemens, Gunther Ulrich, Karl R. Bartusel