Patents Assigned to Hydril Company, L.P.
  • Patent number: 7191841
    Abstract: A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at least one hydraulic channel transmits hydraulic pressure from behind the expansion tool forward in the direction of travel of the expansion tool.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: March 20, 2007
    Assignee: Hydril Company L.P.
    Inventor: Robert S. Sivley, IV
  • Patent number: 7137453
    Abstract: An air swivel ring includes a non-rotating member having an air inlet, a rotating member having an air outlet, and a split seal having a first sealing surface and coupled to one of the non-rotating member and the rotating member so that the first sealing surface on the seal is disposed proximate a second sealing surface on the other of the non-rotating member and the rotating member.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: November 21, 2006
    Assignee: Hydril Company L.P.
    Inventors: Ryan Gustafson, Jonathan Bowen
  • Patent number: 7011159
    Abstract: A fastener for coupling blowout preventers in a stack including an elongated shaft having a first end and a second end, and a head disposed proximate the first end of the elongated shaft and adapted to be retained in a recess in a first blowout preventer. The second end of the elongated shaft is adapted to be coupled to a second blowout preventer.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: March 14, 2006
    Assignee: Hydril Company, L.P.
    Inventor: William R. Holland
  • Patent number: 6845959
    Abstract: A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 25, 2005
    Assignee: Hydril Company, L.P.
    Inventors: Michael Wayne Berckenhoff, Edward Ryan Hemphill, William Rinehart Holland
  • Patent number: 6782932
    Abstract: A system and method for winding fibers onto an article is disclosed. The system includes a winding station having a controllable speed of rotation. The winding station has at least one fiber bobbin mounted on it. A rotation sensor is rotationally coupled to the winding station. The system includes a conveyor having a controllable speed and which is adapted to move the article axially through the winding station. A speed sensor, adapted to measure an axial speed of motion of the article through the winding station is positioned near the winding station. The system includes a controller adapted to operate the winding station at a rotational speed corresponding to the axial speed of motion, so as to apply the fibers to the article in a predetermined helical pattern. In one example, the helical pattern is held to a lay angle having a tolerance within one-half degree.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: August 31, 2004
    Assignee: Hydril Company L.P.
    Inventors: Harris A. Reynolds, Jr., Chris A. Lundberg, Joel D. Shaw, Thomas J. Walsh
  • Patent number: 6676169
    Abstract: A connector for joining a segment of composite pipe is disclosed. The connector includes an end connector having at least one fiber trap on its outer surface thereof. The end connector is attached to a liner portion of the segment of composite pipe. Fibers forming an outer surface of the segment of composite pipe are wound around the at least one trap under tension. The connector includes a binder which impregnates the fibers. The tension is maintained on the fibers in the trap during cure of the binder.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: January 13, 2004
    Assignee: Hydril Company L.P.
    Inventors: Harris A. Reynolds, Jr., Thomas J. Walsh, Chris A. Lundberg, Joel D. Shaw