Patents by Inventor Sanford M. Welton

Sanford M. Welton 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 of applying powder to a glass ribbon
    Patent number: 4082526
    Abstract: A powder is applied to a glass ribbon as the ribbon is displaced between an annealing lehr and a cutting station. The powder on the ribbon facilitates removal of glass chips (1) generated during the cutting of the ribbon into sheets and (2) projected onto the top surface of the glass ribbon. The powder is applied by vaporizing same in a chamber and condensing the vaporized powder on or allowing the powder to condense in the chamber and fall on the top surface of the ribbon as it is displaced past the chamber.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: April 4, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Ronald L. Estes, Larry S. McGee, Sanford M. Welton
  • Method of and apparatus for opening scores in a glass sheet
    Patent number: 4072259
    Abstract: Lateral scores in an annealed glass ribbon are opened by applying a bending moment about the score while applying additional tension to the glass ribbon adjacent its edges.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: February 7, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Sanford M. Welton