Patents by Inventor Robert L. Tilton

Robert L. Tilton 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).

  • Apparatus and method for cooling a glass ribbon forming chamber
    Patent number: 4081261
    Abstract: Direct communication is provided between a pool of molten metal in a glass forming chamber and coolers embedded within a refractory bottom liner of the chamber in order to provide for an enhanced rate of cooling along a path of glass advance through such a chamber.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: March 28, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Robert L. Tilton
  • Composite threshold assembly for a molten glass delivery apparatus and method of delivery
    Patent number: 4062666
    Abstract: A glass delivery facility connecting a glassmaking furnace with a molten metal-containing glass forming chamber employs a threshold assembly having a front face base block having a foot which extends downstream from the threshold-molten metal interface beneath the molten metal and having a transverse subsurface gap for directing gases from the molten metal to the sides of delivery facility so that gas bubbles are removed to avoid deformation of the underside of flat glass being produced.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: December 13, 1977
    Assignee: PPG Industries, Inc.
    Inventor: Robert L. Tilton