Patents Represented by Attorney William W. Adams

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  • Dynamic process for enhancing the wear resistance of ferrous articles
    Patent number: 7191558
    Abstract: A dynamic process for increasing the wear life of ferrous articles subjected to a high-temperature environment created by combustion of a propellant or fuel comprises selecting the propellant or fuel so that its combustion products include relatively large amounts of nitrogen, which nitrogen forms a protective nitride layer on the surface of the ferrous article. Disclosed is a specific embodiment of the invention for prolonging the wear life of gun barrels.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: March 20, 2007
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul J. Conroy, Charles S. Leveritt, John D. Demaree, James Hirvonen