Method and apparatus for treating underground pipeline
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United States of America Patent
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Nov 22, 2005
Grant Date -
Feb 27, 2003
app pub date -
Sep 18, 2002
filing date -
Mar 25, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for internally filling a joint or other discontinuity in a pipeline. The system includes a flexible conduit, a fill device removably connected to said flexible conduit, wherein the fill device is constructed and arranged to apply a fill material to an interior surface of said pipeline to fill one or more gaps in the pipeline, and a propulsion unit connected to at least one of the flexible conduit and the fill device that propels the flexible conduit through said pipeline.
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