Patents Assigned to Reed Tubular Products Company
  • Tool joint
    Patent number: 4549754
    Abstract: A tool joint in which different tapers on the threads result in an artificial change in pitch and a radial interference and an asymmetric root cut on a larger radius than conventional API threads together with the effect of the tapered thread engagement reduces maximum stress in the thread roots and prevents over-torquing.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: October 29, 1985
    Assignee: Reed Tubular Products Company
    Inventors: Donna D. Saunders, Manmohan S. Kalsi, Gun-Shing Chen
  • Apparatus for rethreading tubular members
    Patent number: 4402120
    Abstract: The present disclosure relates to methods and apparatus for rethreading damaged or incorrectly threaded tubular members such as tool joints, casing, and tubing for oil wells, which methods and apparatus are particularly advantageous for use with NC and CNC machines.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: September 6, 1983
    Assignee: Reed Tubular Products Company
    Inventor: Jerry Haygood