Patents by Inventor John B. Boodey

John B. Boodey 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).

  • Thermal Treatment Method
    Patent number: 7208055
    Abstract: An article of titanium or a titanium-based alloy, or of zirconium or a zirconium-based alloy is case hardened by heat treatment for at least 12 hours at one or more temperatures in the range of 850° C. to 900° C. and at a pressure in the order of atmospheric pressure in an oxygen diffusion atmosphere. The oxygen diffusion atmosphere comprises a carrier gas such as argon which does not react chemically with the article the said temperature range and molecular oxygen. The concentration of oxygen as the oxygen diffusion atmosphere is in the range of 10 volumes per million to 400 volumes per million.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: April 24, 2007
    Assignee: The BOC Group, plc
    Inventors: Paul Francis Stratton, John B. Boodey