Patents by Inventor Irving O. Logan

Irving O. Logan 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).

  • Hardband wear testing system and method
    Patent number: 8136384
    Abstract: A hardband wear testing system with a first rotatable member connected to a tool joint to rotate the tool joint in a first direction. A second rotatable member connectable to the casing sample to rotate the casing sample in the first direction or in a second direction opposite to the first direction. One or more actuators may be utilized to raise and lower the second rotatable member and the casing sample with respect to the tool joint.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: March 20, 2012
    Assignee: National Oilwell Varco, L.P.
    Inventors: Daniel L. Hannahs, Irving O. Logan, Alfred Calles, Jr.
  • Hardband Wear Testing System and Method
    Publication number: 20100037675
    Abstract: A hardband wear testing system with a first rotatable member connected to a tool joint to rotate the tool joint in a first direction. A second rotatable member connectable to the casing sample to rotate the casing sample in the first direction or in a second direction opposite to the first direction. One or more actuators may be utilized to raise and lower the second rotatable member and the casing sample with respect to the tool joint.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 18, 2010
    Inventors: Daniel L. Hannahs, Irving O. Logan, Alfred Calles, JR.