Patents by Inventor Andreas Walsdorf

Andreas Walsdorf 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).

  • Publication number: 20030051506
    Abstract: A method for producing glass balls, wherein a glass flow is fed between two rollers which are driven synchronously but counter-rotatingly in a flow direction, from a feed tank containing a mass of molten glass. The rollers have hemispherical depressions distributed over the circumference and form spherical beads on a thin glass strip successively in the region of an imaginary contact tangent. A thickness of the glass strip is fixed by the spacing between the rollers externally of the depressions in the region of the contact tangent. Crude balls are separated from the glass strip by a separating device, once the glass strip, containing the spherical beads, is cooled. The crude balls are subjected to a cold surface finishing treatment.
    Type: Application
    Filed: July 10, 2002
    Publication date: March 20, 2003
    Inventors: Hatto Schafer, Christian Schenk, Horst Wolf, Andreas Walsdorf