Patents by Inventor Peter P. Harmon

Peter P. Harmon 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).

  • Vacuum insulating unit
    Patent number: 5124185
    Abstract: A vacuum insulating unit has a pair of glass sheets spaced from one another by a plurality of plastic supports. The supports have one end secured to one of the sheets and a low friction material on the other end. A flexible metal edge retainer is secured to sheets to provide a sealed compartment between the sheets. Air in the compartment is removed to put the compartment under negative pressure. A getter is provided in the compartment to adsorb any gas therein during sealing or using the unit. One of the sheets may have an environmental coating.Methods are disclosed for fabricating the unit and the supports.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: June 23, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Thomas P. Kerr, Shaow B. Lin, Peter P. Harmon, William R. Siskos, James L. Oravitz, Jr., Paul E. Shaffer
  • Vapor deposition of bis-tributyltin oxide
    Patent number: 4954367
    Abstract: An organotin coating composition comprising bis-tributyltin oxide is disclosed, along with a chemical vapor deposition method for pyrolyzing it to form a tin oxide film on the surface of a substrate.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: September 4, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Karl H. Bloss, Peter P. Harmon
  • Thin films containing metallic copper and silver by replacement without subsequent accelerated oxidation
    Patent number: 3993845
    Abstract: Novel copper-silver metallic films are prepared on transparent articles by chemical replacement of silver for copper according to the method of the present invention. A transparent article is coated with a metallic copper film by a conventional method of deposition. The copper coated article is then contacted by a solution comprising a silver salt, ammonia and a complexing agent which promotes replacement but which does not accelerate the oxidation of residual metallic copper in the film. Replacement of copper by silver occurs with the film retaining its reflective metallic character.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: November 23, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Charles B. Greenberg, Peter P. Harmon