Patents by Inventor William C. Mack

William C. Mack 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).

  • Surface hardened 300 series stainless steel
    Patent number: 5344502
    Abstract: The surface hardening diffusion process for an austenitic material such as 300-series stainless steel uses a pack carburization process at a temperature range from about 1500.degree. F. to about 2500.degree. F. for a period of time ranging from about one (1) to about eight (8) hours. Chromium carbides are formed on the surface of the austenitic material for increasing its wear resistance.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: September 6, 1994
    Assignee: The Babcock & Wilcox Company
    Inventors: William C. Mack, James M. Tanzosh, Mark J. Topolski