Method for repairing a tubular conduit
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United States of America Patent
Stats
-
Apr 2, 1996
Grant Date -
N/A
app pub date -
Sep 30, 1993
filing date -
Oct 9, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved method for repairing a utility pipe such as underground sewer pipe to internally line the pipe with a tubular liner impregnated with a thermosetting resin, and in this method, a hot water hose having ejection holes is inserted in the tubular liner bag to eject hot water to effect hardening of the thermosetting resin and this hose is provided with numerous floats to float in the water even when the ejected water collects and floods inside the tubular liner bag; thus, efficient shooting of the hot water from the hot water hose is secured.
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