Socket connection for pipes and pipe elements
AssigneeEisenwerke Friedr. Wilh. Duker GmbH & Co.
InventorGeorg Seiler
Life of this patent
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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.
Claims8
A connector for connecting pipes, which comprises a pipe having a smooth insertion end, a socket adapted to receive the pipe with radial clearance, and a seal and friction ring;
- the socket having in its interior a substantially radially extending end shoulder and axially spaced therefrom an annular bead so as to form an annular groove;
- a base portion of the ring being disposed between the shoulder and the bead and a sealing portion of the ring being situated on a side of the annular bead which is distal from the base portion, the sealing portion having embedded therein a plurality of retaining elements which are distributed in the circumferential direction and each of which has at least two serrated internal edges for acting on the circumference of the smooth insertion end and which are tiltably supported on the annular bead, the radially outwardly oriented circumferential surface of each retaining element diverging towards the sealing portion to define a divergence angle with respect to an envelope surface that contacts all internal edges of the retaining element, the circumferential surface being a sliding surface for axially slidably guiding the embedded retaining element on the annular bead while maintaining the retaining element freely tiltably supported in every axial position.
Dependencies are inferred from the claim text.