Patents by Inventor Walter J. Operacz

Walter J. Operacz 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 and apparatus for heat treating elongate metallic products
    Patent number: 5314169
    Abstract: Spaced apart packs of closely spaced steel or other metallic rods, tubes or other elongate articles are annealed or otherwise heat treated by advancing them step by step by a walking beam mechanism through a chamber having a series of independently temperature controlled zones along the path of travel, the articles being disposed horizontally and transversely of the path of travel. The atmosphere within each zone is recirculated therein independently of the recirculation of atmosphere within adjacent zones and without substantial mixing of the atmosphere within adjacent zones.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: May 24, 1994
    Assignee: A. C. Leadbetter & Son, Inc.
    Inventors: Vijay M. Kamlani, Otakar A. Kuby, Walter J. Operacz, Frank J. Vereecke