Patents Assigned to Upnor N.V.
  • Pipes with integral sockets
    Patent number: 5526847
    Abstract: A circumferentially or biaxially oriented plastics pipe comprising a body with an integral socket at one end thereof The socket has a wall of lesser axial draw than the body of the pipe.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: June 18, 1996
    Assignees: Vinidex Tubemakers Pty. Limited, Upnor N.V.
    Inventors: George Macovaz, Peter G. Chapman, Jyri Jarvenkyla