公开(公告)号：US20220163156A1

公开(公告)日：2022-05-26

申请号：US17534449

申请日：2021-11-23

申请人： North American Pipe Corporation

发明人： Andrew Wells ,  Joshua E. Clapper

IPC分类号： F16L47/08

摘要： 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：US20210278025A1

公开(公告)日：2021-09-09

申请号：US17148523

申请日：2021-01-13

申请人： North American Pipe Corporation

发明人： Andrew Wells ,  Joshua E. Clapper

IPC分类号： F16L47/08 ,  F16L37/092 ,  F16L47/12 ,  B29C57/02

摘要： 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：US20210215287A1

公开(公告)日：2021-07-15

申请号：US17148520

申请日：2021-01-13

申请人： North American Pipe Corporation

发明人： Andrew Wells ,  Joshua E. Clapper

IPC分类号： F16L47/08 ,  F16L47/12 ,  B29C57/04

摘要： 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.