Patents by Inventor Douglas A. Adkisson

Douglas A. Adkisson 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).

  • Ultrasonic inspection system
    Patent number: 6016701
    Abstract: An ultrasonic inspection system for ultrasonic inspection of the guide structure of a reactor pressure vessel having two shear wave transducers, one positioned to face in a first direction about 30.degree. from normal to a top edge of the grid members of the top guide structure and a second one positioned to face in a second direction about 30.degree. from normal to a top edge of the grid members of the top guide.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: January 25, 2000
    Assignee: Siemens Power Corporation
    Inventors: Richard G. McClelland, Lawrence R. Fox, Edward J. Ruzauskas, Douglas A. Adkisson
  • Reactor pressure vessel top guide structure inspection apparatus and transport system
    Patent number: 5692024
    Abstract: A reactor pressure vessel top guide structure inspection and transport system comprising a remotely operable and positionable underwater vehicle for traversing the top guide structure of a reactor pressure vessel and for positioning an inspection system for detecting defects in the top guide structure.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: November 25, 1997
    Assignee: Siemens Power Corporation
    Inventors: Richard G. McClelland, Lawrence R. Fox, Edward J. Ruzauskas, Douglas A. Adkisson