Patents by Inventor Richard J. Milligan, Jr.

Richard J. Milligan, Jr. 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).

  • Internal riser inspection device
    Patent number: 6904818
    Abstract: An internal inspection unit for pipe has ultrasonic transducers that inspect weld volume, weld root, and wall thickness. The ultrasonic transducers are mounted to a portion of the inspection unit that is rotatable, but no more than one full revolution. One of the units has independently movable shoes for each separate transducer. The shoes are moved between retracted and extended positions by pneumatic cylinders. The other unit has shoes that support more than one transducer, the shoes being biased outwardly by springs.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: June 14, 2005
    Assignee: Vetco Gray Inc.
    Inventors: Larry K. Harthorn, Pedro A. Dioquino, Richard J. Milligan, Jr., Jason C. Good, Neil D. Allen, Richard D. Romero