Patent ID: 9200742
Filing Date: 2015-12-01
Classification: B29C,F16L

Abstract:
1. A lateral pipe-lining method for lining a lateral pipe that intersects a main pipe, the method comprising: preparing a lateral pipe-lining material having a tubular resin-absorbing material impregnated with a curable resin and having a flange formed at one end thereof, an adhesive made of a thermosetting resin being applied onto the flange of the lateral pipe-lining material; disposing the flange of the lateral pipe-lining material on an expandable flange-pressing implement; and inserting the lateral pipe-lining material into the lateral pipe and curing the curable resin impregnated in the tubular resin-absorbing material to line the lateral pipe; wherein a heat medium is supplied to the expandable flange-pressing implement so as to expand the flange-pressing implement to press the flange of the lateral pipe-lining material into contact with the periphery of a lateral pipe opening of the main pipe, the heat medium being supplied so as to gradually heat the flange of the lateral pipe-lining material and the adhesive applied thereon, after which the adhesive is cured to thereby bond the flange to the periphery of the lateral pipe opening of the main pipe.