Patents by Inventor Philip K. Fuhrman

Philip K. Fuhrman 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).

  • Use of reducing gas curtain for start of glass forming process
    Patent number: 4081262
    Abstract: A curtain of reducing gas is established across the entrance end of a glass forming chamber which employs a pool of molten metal to support glass during forming in order to impinge reducing gas along a line across a refractory delivery piece and molten metal region of the forming chamber in order to insure that molten glass is initially delivered onto molten tin free of contaminants, such as metal oxide.
    Type: Grant
    Filed: August 3, 1977
    Date of Patent: March 28, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Philip K. Fuhrman, Robert A. Greiner, Jr.