Patents by Inventor Ricky Lynn Martin

Ricky Lynn Martin 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).

  • Integral corrosion protection of friction-welded joints
    Patent number: 6045028
    Abstract: A zone of corrosion-resistant material covering a friction stir welded joint surface is provided by applying a layer of corrosion-resistant material over one or both surfaces of the workpieces being joined so that the layer covers at least the weld zone which will be rendered plastic during a friction stir welding operation. The corrosion-resistant material layer is contacted by the friction stir welding tool, and the tool causes shearing and plastic flow of the corrosion-resistant material along the surface of the welded joint. The corrosion-resistant material thus metallurgically bonds with portions of the plasticized metal so as to form a corrosion-resistant zone protecting the welded joint from exposure to corrosive environments.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: April 4, 2000
    Assignee: McDonnell Douglas Corporation
    Inventors: Ricky Lynn Martin, David Robert Bolser