Patents by Inventor Gary Steven

Gary Steven 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 for producing tool steel articles
    Patent number: 3936299
    Abstract: This invention relates to a tool steel consisting essentially of, in weight percent, carbon 1 to 1.4 or 2.5, chromium 4 to 6, vanadium 1 to 1.5 or 8, tungsten 7.5 to 13, molybdenum 3.5 to 7, cobalt 9 to 15, nitrogen at least about 0.03 and preferably 0.03 to 0.08, and the balance iron. The invention also relates to a tool steel compact of this steel produced by a powder-metallurgy technique also in accordance with this invention. The tool steel article is characterized by a combination of good cutting performance and machinability.
    Type: Grant
    Filed: September 14, 1971
    Date of Patent: February 3, 1976
    Assignee: Crucible Inc.
    Inventor: Gary Steven