Patents Assigned to Marine Direct Consultants Ltd.
  • Coupling for connecting tubes with a nut-runner
    Patent number: 7757366
    Abstract: A coupling for connecting pipes, having a seal, flanges, a threaded portion and a nut, where the end portion of the pipe is equipped with a concentric press surface located immediately proximal to the periphery of the pipe and designed to be able to take an axial pressure from a preloading tool, which pressure is distributed evenly or point-by-point about the periphery of the pipe. The preloading tool has two end sections connected to two or more rods, each rod being equipped with a hydraulic cylinder.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: July 20, 2010
    Assignee: Marine Direct Consultants Ltd.
    Inventors: Stephen W. Vorley, John S. Giles