Title:
パイプライン中へケーブルおよび導管を敷設する方法およびシステム
Document Type and Number:
Japanese Patent JP2004513599
Kind Code:
A
Abstract:
A method of introducing a fiber optic conduit into a pressurized gas pipeline includes the step of introducing a translating member into the pressurized gas pipeline via an entry port in a first drilling nipple attached to the pressurized gas pipeline. Tools are deployed within a first pressure lock housing attached to the first drilling nipple by using a first manipulator located in the first air lock housing. The duct rod is advanced within pressurized gas pipeline by a driving mechanism, until a second drilling nipple is reached. The translating member is attached to a fiber optic conduit. The duct rod and fiber optic conduit are then pulled back or pulled forward through the pressurized gas pipeline by the driving mechanism. A conduit is installed in a gas service line, to line the cable or conduit in a natural gas main pipeline to a telecommunications panel in a building.
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Inventors:
Scott A Beers
Robert E Evans
Ronald Di Hummer
Robert E Evans
Ronald Di Hummer
Application Number:
JP2002540527A
Publication Date:
April 30, 2004
Filing Date:
October 09, 2001
Export Citation:
Assignee:
Sempra Fiber Links
International Classes:
G02B6/46; F16L1/024; F16L7/00; H02G1/06; H02G1/08; H02G9/06; (IPC1-7): H02G1/08; F16L1/024; G02B6/46; H02G1/06; H02G9/06
Attorney, Agent or Firm:
Osamu Kawamiya
Hisao Ishii
Hisao Ishii