Patents by Inventor James W. Wilkirson

James W. Wilkirson 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).

  • Methods and systems for subsea electric piezopumps
    Patent number: 8733090
    Abstract: In at least some embodiments, an apparatus includes a hydraulic directional control manifold and a plurality of electric piezopumps. The apparatus also includes an electric piezopump controller that operates the plurality of electric piezopumps in varying combinations to provide generation and directional control of hydraulic power to linear hydraulic actuators using localized closed-loop hydraulic fluid.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 27, 2014
    Assignee: Cameron International Corporation
    Inventors: Don Coonrod, Melvyn F. Whitby, Gerrit M. Kroesen, Ronald W. Webb, Mac M. Kennedy, Katherine Harvey, David Gonzalez, Thomas M. Bell, James W. Wilkirson
  • Methods And Systems For Subsea Electric Piezopumps
    Publication number: 20110302911
    Abstract: In at least some embodiments, an apparatus includes a hydraulic directional control manifold and a plurality of electric piezopumps. The apparatus also includes an electric piezopump controller that operates the plurality of electric piezopumps in varying combinations to provide generation and directional control of hydraulic power to linear hydraulic actuators using localized closed-loop hydraulic fluid.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 15, 2011
    Applicant: CAMERON INTERNATIONAL, INC.
    Inventors: Don Coonrod, Melvyn F. Whitby, Gerrit M. Kroesen, Ronald W. Webb, Mac M. Kennedy, Katherine Harvey, David Gonzalez, Thomas M. Bell, James W. Wilkirson