Patents Assigned to Sun Forge Operations Limited
  • Method of making sphere-passing tees for piping systems
    Patent number: 3986240
    Abstract: A sphere-passing tee is made up of a sphere-guiding tube having each end held within a tapering end portion of a one-piece outer tube. Each tapering end portion of the outer tube is formed thereon by forcing it into a die. The outer tube is preferably provided with the branch outlet of the tee by an extrusion process.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: October 19, 1976
    Assignee: Sun Forge Operations Limited
    Inventor: Timothy Hugh Christopher Skinner