Patents by Inventor Brian G. Doyle

Brian G. Doyle 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).

  • Patent number: 5554837
    Abstract: A process and apparatus is provided for laser welding a nickel and/or cobalt based superalloy article comprising: preheating the entire weld area and adjacent region to a ductile temperature with an induction heat coil and maintaining such temperature during welding and solidification of the weld; and welding the preheated article utilizing a laser with a powder alloy feed with a control means controlling the laser, power feed and motion system on which the article is fixtured, wherein the control means includes a vision system which digitizes the weld area providing a path for the laser welding to follow.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: September 10, 1996
    Assignee: Chromalloy Gas Turbine Corporation
    Inventors: Frank Goodwater, Lang D. Huynh, David S. Kang, Hon Li, James M. Lizotte, Brian G. Doyle