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1. 发明专利

JPH0691755A METHOD FOR REVERSE-LINING CONDUIT 失效
公开(公告)号：JPH0691755A
公开(公告)日：1994-04-05
申请号：JP24624792
申请日：1992-09-16
申请人： NIPPON STEEL CORP
发明人： TERADA SHUNICHI , TAKEUCHI TAKASHI , AGO KAZUO , KIMURA TETSUO
IPC分类号： B29C63/36 , F16L1/00
摘要： PURPOSE:To effectively apply a method for reverse-lining a tilted conduit, vertical conduit and curved conduit, etc. CONSTITUTION:For a method to reverse-line a lining material 10 which is impregnated with a hardening type resin on the inner surface of a conduit 1 by a fluid pressure, a sealing lid 5 with a discharge port 6 is previously attached to the end of a conduit on the reaching side, and a back pressure fluid 14 which is filled in the back pressure side conduit which is located ahead of a reversing part 12 of the lining material 10, is discharged from the discharge port 6 while being adjusted, in order to reverse/advance the lining material.

2. 发明专利

JPH06241358A TUBE JOINT 失效
公开(公告)号：JPH06241358A
公开(公告)日：1994-08-30
申请号：JP3022793
申请日：1993-02-19
申请人： NIPPON STEEL CORP , KEIYO BLANKING KOGYO KK
发明人： NARUSE TOMOFUMI , TERADA SHUNICHI , YAMATANI YATARO , TANAKA TADAHIRO
IPC分类号： F16L21/02 , F16L21/04
摘要： PURPOSE:To always secure stable water sealing property by inserting the ends of two tubes into a sheath tube and making them to butt against each other, and also forming, between these tubes a bent groove for expanding its angular section by being deformed in a triangle in its cross-section so as to generate a specified surface pressure. CONSTITUTION:The ends of two tubes 1 and 2 are inserted into a sheath tube 3, and made to butt against each other for mutual connection. In this case, an angular packing compressive ring 9 and a fixed type stopper 5 are installed on both ends of the sheath tube 3, and these are engagingly locked to each other with bolts 8. Also a slide type packing forcing ring 7 is fitted closely into the top end of the steel tubes 1 and 2, and a fixed type packing forcing ring 6 which is welded to the sheath tube 3 is installed there. In addition, a corrugated packing 4 is inserted between both rings 7 and 9 on the ends of the steel tubes 1 and 2. Then the corrugated packing 4 is prevented from coming off from a clearance between the tubes 1 and 2 and the fixed type packing forcing ring 6 by the slide type packing forcing ring 7.

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