公开(公告)号：US20190137028A1

公开(公告)日：2019-05-09

申请号：US16096842

申请日：2017-04-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ian Robinson ,  Wayne S. Jobling ,  Andrew R. Henry ,  Richard Yufeng Liu ,  Scott M. Fabozzi ,  Alexander J. Kugel ,  Mario A. Perez

IPC: F16L55/165 ,  F16L55/163 ,  F16L55/18 ,  F16L58/10

Abstract: The invention relates to a method for preparing a pipe for a continuous spray lining process, the method comprising the following steps: providing an inflatable packer (3); providing an expandable sleeve (4) with a conformable backing layer (5) and an adhesive layer (6); wrapping the expandable sleeve around the packer with the adhesive layer facing the outside; inflating the inflatable packer until it reaches a first diameter (D1), wherein the first diameter is smaller than the inner diameter (d) of the pipe section, thereby expanding the stretching sleeve, inserting the inflated packer with the expanded sleeve into the pipe (1, 2) until it reaches the pipe section to be sealed; and further inflating the packer until it reaches a second diameter (D2), thereby further stretching the expandable sleeve; wherein the second diameter is reached when the expanded sleeve touches the inner diameter (d) of the pipe section.

公开(公告)号：US20190137027A1

公开(公告)日：2019-05-09

申请号：US16096506

申请日：2017-04-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ian Robinson ,  Andrew R. Henry ,  Wayne S. Jobling

IPC: F16L55/165 ,  F16L55/163 ,  F16L55/18 ,  F16L58/10

Abstract: An in-situ deployment device (20) for transporting an expandable sleeve (4) inside of a pipe (1, 2) and for applying it in on the inside of the pipe (1, 2), wherein the expandable sleeve (4) comprises a backing layer (5) and an adhesive layer (6) and wherein the adhesive layer (6) faces the outside when the sleeve is positioned on the deployment device (20) while being transported through the pipe (1, 2), the deployment device (20) comprising: —an inflatable section (21) for carrying and expanding the expandable sleeve (4) and —a positioning section (22) for positioning the deployment device (20) at the correct location inside of the pipe (1, 2), wherein the inflatable section (21) and the positioning section (22) are connected such with each other that the two sections (21, 22) can move relative to each other.