Patents by Inventor Tom Bracewell, deceased

Tom Bracewell, deceased 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 the gaseous nitriding of ferrous-based components
    Patent number: 4236942
    Abstract: A ferrous-based component is nitrided by subjecting the heated component to an atmosphere of ammonia and then to an atmosphere of an inert gas. The undesirable nitrogen-rich layer which was hitherto produced at the surface of the component in nitriding is reduced or eliminated in the process of the invention.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: December 2, 1980
    Assignee: British Leyland UK Limited
    Inventors: Frederick V. Rudd, Tom Bracewell, deceased