Patents by Inventor Donald G. Luff

Donald G. Luff 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).

  • Skid pipe covering
    Patent number: 4170451
    Abstract: An arrangement by which a jacket of preformed insulating material is readily installed around the outer surface of a water cooled pipe that is to be used as a structural support or a skid rail for a heat treating furnace.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: October 9, 1979
    Assignee: Combustion Engineering, Inc.
    Inventor: Donald G. Luff