Patents Assigned to Eisenwerke Friedr. Wilh. Duker GmbH & Co.
  • Socket connection for pipes and pipe elements
    Patent number: 4229026
    Abstract: The invention relates to a connector for joining pipes, particularly of metal, which comprises a socket and a pipe having a smooth end for insertion into the socket. A seal and friction ring inside the socket seals the pipe into the socket and prevents accidental withdrawal. In the present invention retaining elements are embedded in the elastomeric sealing material of which the ring is composed and are axially slidably guided as well as being freely tiltable about an annular bead on the socket.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: October 21, 1980
    Assignee: Eisenwerke Friedr. Wilh. Duker GmbH & Co.
    Inventor: Georg Seiler