Title:
【発明の名称】プラスチックパイプ上にフランジを形成する方法および装置
Document Type and Number:
Japanese Patent JPH06506407
Kind Code:
A
Abstract:
A method is shown for forming a flange on an end of a plastic pipe liner of the type used to line a tubular member. A reinforced disc having a rigid portion and an elastomeric portion is placed about the liner exterior and moved into position flush with the flanged end of the tubular member. A retaining ring is placed about the reinforced disc and the disc and liner exposed end are heated to render the materials malleable. A forming unit is then used to apply force to the liner to flow the liner into a reformed shape having a greater external diameter than the remainder of the liner. The forming operation also bonds the reinforced disc to the reformed liner end to further resist any tendency of the liner end to be retracted into the interior of the tubular member.
Inventors:
McMilan, James S.
Sama' Ann, Tasha
Sama' Ann, Tasha
Application Number:
JP50806591A
Publication Date:
July 21, 1994
Filing Date:
April 24, 1991
Export Citation:
Assignee:
Pipe Rehab International, Inc.
International Classes:
B29B13/02; B29C57/00; B29C63/34; B29C70/84; F16L23/024; F16L23/026; F16L23/028; (IPC1-7): B29C57/00; B29C63/34; F16L23/024; F16L23/028
Attorney, Agent or Firm:
Hidesaku Yamamoto