Lining of pipelines and passageways
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United States of America Patent
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-
Dec 25, 1990
Grant Date -
N/A
app pub date -
Feb 10, 1989
filing date -
Feb 10, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to line a pipeline or passageway active in conveying effluent without interrupting the flow of effluent therethrough, a first bypass conduit is passed through the section to be lined before the lining is inserted and the effluent is pumped therethrough, a second bypass conduit is passed through the lining after it has been inserted but before is has been fixed in position, the effluent is then pumped through that second conduit, the lining is fixed in position, normal effluent flow resumes, and the second conduit can be removed for future use.
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