Patents by Inventor James R. M. Allison

James R. M. Allison 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).

  • Bellows type adjustable casing
    Patent number: 8387707
    Abstract: A tieback connection between an offshore production platform and a wellhead on the sea floor has a riser and a tubular expandable and contractable member within the riser. The expandable and contractable member compensates for axial movement within the riser while maintaining axial tension in the riser. The expandable and contractable member is of uni-body construction having a wall configured to correspondingly expand and contract to compensate for the riser movement. In cross section, the member wall comprises folds formable by alternating slots formed into the inner and outer wall surface or an undulating surface.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: March 5, 2013
    Assignee: Vetco Gray Inc.
    Inventors: Frank C. Adamek, James R. M. Allison
  • BELLOWS TYPE ADJUSTABLE CASING
    Publication number: 20100147530
    Abstract: A tieback connection between an offshore production platform and a wellhead on the sea floor has a riser and a tubular expandable and contractable member within the riser. The expandable and contractable member compensates for axial movement within the riser while maintaining axial tension in the riser. The expandable and contractable member is of uni-body construction having a wall configured to correspondingly expand and contract to compensate for the riser movement. In cross section, the member wall comprises folds formable by alternating slots formed into the inner and outer wall surface or an undulating surface.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Applicant: VETCO GRAY INC.
    Inventors: Frank C. Adamek, James R. M. Allison