Patents by Inventor Hubert Sonntag

Hubert Sonntag 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).

  • Method and apparatus for making convex sheets of glass having a small radius of curvature
    Patent number: 4203751
    Abstract: A process for making a convex sheet of glass having a substantial bent portion of small radius of curvature comprising vertically suspending a heated flat sheet of glass between two molds having matching center elements and matching jointed elements mounted on the center elements for movement about an axis, moving the molds together to confine the sheet and moving the jointed elements with respect to the center elements to bend a portion of the heated sheet.A device for making a convex sheet of glass having a bent portion of small radius of curvature including a female mold and a male mold adapted to engage a vertically suspended sheet of glass therebetween and where the molds have matching center elements and at least one set of two matching jointed elements connected to the center elements and including means for moving the joined elements of a set about an axis to bend a portion of the sheet.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: May 20, 1980
    Assignee: Saint-Gobain Industries
    Inventors: Mario Roth, Hans-Peter Siemonsen, Gunther Schmidt, Hubert Sonntag, Leo Peters