Method of lining a pipeline using a calibration hose

Details Method of lining a pipeline using a calibration hose Method of lining a pipeline using a calibration hose

2005-03-22

2005-03-22

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Repairing

Patches

C138S097000, C405S150100, C156S287000, C156S294000, C264S269000

Reexamination Certificate

active

06868870

ABSTRACT:
The present invention is an improved method for installing a liner to repair a pipeline. The method involves placing a flexible lining hose that is coated with a thermosetting resin in the pipeline. A thermosetting resin is also applied to the interior walls of the pipeline. A calibration hose is introduced into the lining hose and pressurized fluid is injected therein. The fluid presses the lining hose against the interior surface of the pipeline and cures the first and second thermosetting resins. The curing of the resins bonds the lining hose to the pipeline to form a rigid monolithic composite structure having high mechanical strength.

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