Mould and sealing ring

Details Mould and sealing ring Mould and sealing ring

B - Operations, Transporting

29

C

285/52

B29C 57/02 (2006.01) F16L 37/08 (2006.01) F16L 37/084 (2006.01)

Patent

CA 1291185

A B S T R A C T A mould and sealing ring constitutes a mould element in forming a socket end on a pipe consisting of thermoplastic material and seals the space in a pipe joint between the socket end and the spigot end of a pipe introduced into the socket end. The mould and sealing ring comprises an annular sealing portion consisting of elastically yieldable sealing material and a second substantially annular portion for reinforcing the mould and sealing ring consisting of a material which is rigid in relation to said elastically yieldable material and is connected with the elastically yieldable material at a connection surfaceThe sealing portion and the reinforcing portion constitute two portions positioned adjacent each other on each side of the connection surface in the axial direction of the ring for dividing the ring into a portion which is inactive from the sealing point of view and is active from the forming and locking point of view and a portion which is active from the sealing point of view and is substantially inactive from the forming and locking point of view.

535017

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