Lateral pipe-lining method
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United States of America Patent
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Dec 1, 2015
Grant Date -
Oct 14, 2010
app pub date -
Apr 12, 2010
filing date -
Apr 13, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A lateral pipe-lining method for lining a lateral pipe that intersects a main pipe. A lateral pipe-lining material has a tubular resin-absorbing material impregnated with a curable resin and has a flange formed at one end thereof. The flange is disposed on an expandable flange-pressing implement. The expandable flange-pressing implement is expanded using a heat medium that is supplied by a first fluid source and that heats the flange of the lateral pipe-lining material to bring the flange into contact with a periphery of a lateral pipe opening of the main pipe. The lateral pipe-lining material is inserted into the lateral pipe using a fluid from a second fluid source different from the first fluid source, and the curable resin impregnated in the tubular resin-absorbing material is cured to line the lateral pipe.
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