Apparatus for lining an inside wall of a sewer pipe
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United States of America Patent
Stats
-
May 10, 1994
Grant Date -
N/A
app pub date -
May 22, 1992
filing date -
Jun 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An extruder drivable for displacement by moving devices is provided for sewer pipe reconstruction and has a radial nozzle applying by extrusion a thermoplastic tube to the inside wall of a sewer pipe to be reconstructed. The thermoplastic tube is pressed against the inside wall by pressurized air and cooled down to form a lining pipe.
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International Classification(s)
Cited Art Landscape
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