Invention Grant
- Patent Title: Method for pulling in restoration pipe and restored pipeline
- Patent Title (中): 拉拔管道和恢复管道的方法
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Application No.: US14365216Application Date: 2013-05-29
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Publication No.: US08985157B2Publication Date: 2015-03-24
- Inventor: Shigeki Kanao
- Applicant: Kanaflex Corporation
- Applicant Address: JP Osaka
- Assignee: Kanaflex Corporation
- Current Assignee: Kanaflex Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2012-121465 20120529; JP2012-121466 20120529
- International Application: PCT/JP2013/064894 WO 20130529
- International Announcement: WO2013/180170 WO 20131205
- Main IPC: F16L55/16
- IPC: F16L55/16 ; F16L55/165 ; E03F7/00

Abstract:
Provided is a restoration pipe pulling-in method which can easily determine whether pilling-in of a restoration pipe is possible wherein the restoration pipe has a diameter as much as large relative to a deteriorated drainage channel, and which can pulling a restoration pipe into a sewer pipe wherein the gap between the restoration pipe and the sewer pipe is shorter. The restoration pipe pulling-in method comprises preparing a dummy restoration pipe 30′ which imitates the restoration pipe; attaching a determination jig 10 for determining whether pulling-in of the restoration pipe is possible to an insertion-side leading end portion of the dummy restoration pipe 30′; pulling the dummy restoration pipe 30′ with the determination jig 10 into the existing pipe 1; after confirming completion of passing-through of the dummy restoration pipe 30′ with the determination jig 10, attaching a pull-in jig to a leading end portion of the restoration pipe; and arranging the restoration pipe over an entire length of the existing pipe 1, by inserting the restoration pipe with the pull-in jig, through an upper opening 2b of the existing pipe 1, into the existing pipe 1, and by pulling the pull-in jig with a wire.
Public/Granted literature
- US20140366977A1 METHOD FOR PULLING IN RESTORATION PIPE AND RESTORED PIPELINE Public/Granted day:2014-12-18
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