Patents Assigned to Lone Star Steel Company, L.P.
  • Push bench method for manufacturing small diameter tubing
    Patent number: 7290424
    Abstract: The present invention involves cost effective, efficient systems and methods for sizing pipe. In an embodiment of the present invention, a pipe sizing system includes a die having an opening operable to size the pipe, a hydraulic cylinder having at least one rod attached thereto, the hydraulic cylinder and the at least one rod cooperating with each other to push the pipe through the die, and a receiver to guide the pipe as the pipe exits from the die.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: November 6, 2007
    Assignee: Lone Star Steel Company, L.P.
    Inventors: Paul Fullerton, Nathan A. Roden, David R. Witt
  • Solid expandable tubular members formed from very low carbon steel and method
    Patent number: 7169239
    Abstract: A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy may be installed within a wellbore and radially expanded during completion of the wellbore.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: January 30, 2007
    Assignee: Lone Star Steel Company, L.P.
    Inventors: Gary M. Reavis, Bluford W. Lowery, Ralph R. Myers, Bowman A. Urech