Patents by Inventor Charles G. Lippert

Charles G. Lippert 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).

  • Energy efficient heat-treating furnace system
    Patent number: 4225121
    Abstract: A method and apparatus are disclosed for heat-treating parts in a furnace system which uses a minimum total amount of energy. The self-contained, continuous heat-treating system includes components such as a carburizer, a tempering furnace, and a part cooler. Energy transfer between these and other components operable at different temperatures and/or energy requirements are used to maximize thermal efficiency of the system.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: September 30, 1980
    Assignee: Holcroft
    Inventors: Robert W. Meyer, Charles G. Lippert