Patents by Inventor James C. Garrett

James C. Garrett 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).

  • Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
    Patent number: 8006751
    Abstract: A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: August 30, 2011
    Assignee: National-Oilwell, L.P.
    Inventors: Jeff A. Lambert, James C. Garrett, Kenneth L. Cambern, Joel M. Ferland, Jay D. Furnish, Donald W. Johnson, Michael R. Zemanek, James R. Cirone, Calvin R. Blankenship
  • Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
    Patent number: 7546869
    Abstract: A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: June 16, 2009
    Assignee: National-Oilwell, L.P.
    Inventors: Jeff A. Lambert, James C. Garrett, Kenneth L. Cambern, Joel M. Ferland, Jay D. Furnish, Donald W. Johnson, Michael R. Zemanek, James R. Cirone, Calvin Blankenship
  • Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
    Patent number: 7293607
    Abstract: A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: November 13, 2007
    Assignee: National-Oilwell, L.P.
    Inventors: Jeff A. Lambert, James C. Garrett, Kenneth L. Cambern, Joel M. Ferland, Jay D. Furnish, Donald W. Johnson, Michael R. Zemanek, James R. Cirone, Calvin Blankenship