Patents by Inventor George E. Sleighter

George E. Sleighter 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).

  • Chemical vapor deposition of a reflective film on the bottom surface of a float glass ribbon
    Patent number: 4900110
    Abstract: A coated glass article is disclosed wherein the interference color infrared-reflective film on one surface of a glass substrate are masked by depositing a uniform higher reflecting metal-containing film on the bottom surface of a glass ribbon by chemical vapor deposition.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: February 13, 1990
    Assignee: PPG Industries, Inc.
    Inventor: George E. Sleighter
  • Chemical vapor deposition of a reflective film on the bottom surface of a float glass ribbon
    Patent number: 4584206
    Abstract: A method and apparatus are disclosed for depositing a metal-containing film on the bottom surface of a glass ribbon by chemical vapor deposition whereby a turbulent stream of vaporized coating reactant is delivered to the bottom surface of a glass ribbon at a sufficient temperature to cause deposition of a film on the surface, and unreacted and undeposited coating reactant and reaction by-products are immediately exhausted.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: April 22, 1986
    Assignee: PPG Industries, Inc.
    Inventor: George E. Sleighter
  • Method of and apparatus for analyzing atmosphere of a combustion chamber
    Patent number: 4358305
    Abstract: A hole through each of opposed walls of a combustion chamber of a glass melting apparatus and piping interconnect the chamber atmosphere to an oxygen analyzer. A sample of the chamber atmosphere is continuously moved through each of the holes and piping to the analyzer by the biasing action of the positive pressure differential between the chamber atmosphere and the ambient atmosphere.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: November 9, 1982
    Assignee: PPG Industries, Inc.
    Inventor: George E. Sleighter
  • Glass ribbon float tank with a pyrometer assembly having a heated viewing tube and method of use
    Patent number: 4303435
    Abstract: A viewing tube extension for an infrared radiation pyrometer includes a tube having a heater therein. The heater has a passageway so that the pyrometer sights a glass ribbon moving through a forming chamber of a flat glass making apparatus. Vapors from the heating chamber moving into the tube are maintained above their dew point as a purge gas moves the vapors out of the tube.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: December 1, 1981
    Assignee: PPG Industries, Inc.
    Inventor: George E. Sleighter
  • Pyrometer assembly having a heated viewing tube
    Patent number: 4259866
    Abstract: A viewing tube extension for an infrared radiation pyrometer includes a tube having a heater therein. The heater has a passageway so that the pyrometer sights a glass ribbon moving through a forming chamber of a flat glass making apparatus. Vapors from the heating chamber moving into the tube are maintained above their dew point as a purge gas moves the vapors out of the tube.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: April 7, 1981
    Assignee: PPG Industries, Inc.
    Inventor: George E. Sleighter