Patents by Inventor Harold R. Gorman

Harold R. Gorman 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 for reducing roll marking of glass sheets
    Patent number: 4260404
    Abstract: A method for reducing roll marking of glass sheets is disclosed whereby metal rolls are coated in situ with a boron nitride film.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: April 7, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Harold R. Gorman, Leonard R. Plocki
  • Oilless fluid for scoring glass
    Patent number: 4084737
    Abstract: A cutting fluid is disclosed comprising one or more halogenated hydrocarbons dissolved in one or more paraffin, naphtha, or aromatic solvents. Use of the cutting fluid produces a glass edge with increased edge strength compared with a cut edge produced by dry scoring. The cutting fluid is completely evaporative, leaving no residue, thus eliminating the need for washing. Further, use of the cutting fluid extends the useful life of the cutting tool. Blends are formulated to meet specific evaporation rates required by variations in wareroom equipment and practices.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: April 18, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Harold R. Gorman, John R. Dahlberg, James L. Oravitz, Jr.