公开(公告)号：WO2022109502A1

公开(公告)日：2022-05-27

申请号：PCT/US2021/060668

申请日：2021-11-23

Applicant: NORTH AMERICAN PIPE CORPORATION ,  TRELLEBORG PIPE SEALS B.V.

Inventor： WELLS, Andrew ,  CLAPPER, Joshua, E.

IPC: B29C57/02 ,  B29C57/04 ,  F16L37/092 ,  F16L47/08 ,  F16L47/12 ,  F16J15/10

Abstract: A polymer pipe includes a length between a first end and a second end, the length and the first end having a first diameter. The second end is a belled or female end having a second diameter larger than the first diameter. An insert device is received within the second end and has an annular body formed of a body material and has a spline portion formed as a part of the insert device. The spline portion includes a spline carried by the insert device and resiliently movable in a radial direction relative to an axis of the annular body.

公开(公告)号：WO2021146353A1

公开(公告)日：2021-07-22

申请号：PCT/US2021/013328

申请日：2021-01-13

Applicant: NORTH AMERICAN PIPE CORPORATION

Inventor： WELLS, Andrew ,  CLAPPER, Joshua

IPC: B29C57/02 ,  F16L47/08 ,  F16L47/12 ,  B29C57/04 ,  B29L2031/24

Abstract: A polymer pipe has a length between a first end and a second end. The length and the first end have a first diameter and the second end is a belled end having a second diameter larger than the first diameter. An insert device is received within the second end and has an annular body and a spline groove formed in the annular body and facing radially inward. The insert device is pre-installed in the belled end during the belling process.

公开(公告)号：WO2021146351A1

公开(公告)日：2021-07-22

申请号：PCT/US2021/013326

申请日：2021-01-13

Applicant: NORTH AMERICAN PIPE CORPORATION

Inventor： WELLS, Andrew ,  CLAPPER, Joshua

IPC: B29C57/02 ,  F16L47/08 ,  F16L47/12 ,  B29C57/04 ,  B29L2031/24

Abstract: A polymer pipe has a length between a first end and a second end. The length and the first end have a first diameter and the second end is a belled end having a second diameter larger than the first diameter. An insert device is received or pre-installed within the second end and has an annular body with a seal part coupled to the annular body and a spline groove formed in the annular body and facing radially inward. Another polymer pipe is inserted in the belled end to form a pipe joint assembly and has a mating spline groove on the outer surface. The spline groove and mating spline groove axially align and receive a spline therein to axially interlock the two polymer pipes to form a pipe joint assembly.