Patents by Inventor Roger Bridgeman

Roger Bridgeman 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).

  • Tuyere assembly and positioning method
    Patent number: 4754951
    Abstract: A tuyere assembly and positioning method comprising mechanically separate or separable inner and outer tubes, the inner tube(s) being removeable and replaceable and the outer tube being extendable into a vessel and held in place by a flared end abutting the wall of a cavity through the vessel wall.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: July 5, 1988
    Assignee: Union Carbide Corporation
    Inventors: Ian F. Masterson, Roger Bridgeman, Steven Bailey