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Title:
BRANCH PIPE LINING TECHNIQUE
Document Type and Number:
Japanese Patent JPH0788962
Kind Code:
A
Abstract:

PURPOSE: To facilitate a reverse insertion of a long branch pipe lining material into a branch pipe for simplifying an operation and saving a labor by forming a pressurized space in a main pipe by the branch pipe lining material covering in a branch pipe opening part of the main pipe and two air bags disposed in the main pipe.

CONSTITUTION: Two expandable and shrinkable air bags 16, 17 are disposed with a branch pipe opening part between in a main pipe 1. The air bag 16 is connected to a compressor 19 through an air hose 18 and connected to a vacuum pump 21 through a vacuum hose 20. The air bag 17 is also connected to a compressor 23 through an air hose 22 and connected to a vacuum pump 25 through a vacuum hose 24. An electric cable 27 connected to a TV camera 8 and an electric cable 28 connected to a light 9 are airtightly inserted through the air bag 17.


Inventors:
KAMIYAMA TAKAO
YOKOSHIMA YASUHIRO
ENDO SHIGERU
Application Number:
JP1993000240779
Publication Date:
April 04, 1995
Filing Date:
September 28, 1993
Export Citation:
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Assignee:
SHONAN GOSEI JUSHI SEISAKUSHO
YOKOSHIMA KK
GET KK
International Classes:
F16L55/16; B29C63/36; F16L1/00; B29L23/00; (IPC1-7): B29C63/36; F16L1/00; F16L55/16
Attorney, Agent or Firm:
山下 亮一