Title:
METHOD OF REGENERATING AND REPAIRING EXISTING PIPE LINE
Document Type and Number:
Japanese Patent JP3264906
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To uniformalize the thickness of a lining film, which is scooped by the lining pig to be made uneven.
SOLUTION: A supporting member 3A inserted in the branched pipe 2 and having a shape caught by the bend part 2A, the lining pigs attached to the supporting member 3A and capable of being in contact with the inside surface of the bend part 2A and a leveling pig 5 arranged in the branched position side of the branched pipe 2 from the main pipe 1, connected with a floating member 4 dragged by the lining pigs are prepared, the lining pig 3 is prevented from moving to the main pipe from the branched position by catching the supporting member 4 and the lining pigs 3 by the bend part 2A at the time of inserting the lining pigs 3 into the branched pipe 2, the leveling pig 4 is positioned at the branched pipe side and the lining film is formed in the branched pipe 2 by the leveling pig 5 brought back linked with the lining pig 3 by bringing back the lining pigs 3 from this state.
Inventors:
Shuichi Yagi
Masaaki Itagaki
Seita Shimizu
Masaaki Itagaki
Seita Shimizu
Application Number:
JP27518299A
Publication Date:
March 11, 2002
Filing Date:
September 28, 1999
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
B05D7/22; B05C7/08; F16L55/16; (IPC1-7): B05D7/22; B05C7/08; F16L55/16
Domestic Patent References:
| JP5775179A | ||||
| JP6126247A | ||||
| JP9262527A | ||||
| JP63181481U |
Attorney, Agent or Firm:
Kobashi Shinjun