Pipes and tubular conduits – Repairing – Patches
Patent
1998-10-30
2000-10-31
Brinson, Patrick
Pipes and tubular conduits
Repairing
Patches
138 97, 4051501, 264269, F16L 5518
Patent
active
061387185
ABSTRACT:
The present invention relates to an apparatus and method for repairing pipes and conduits, particularly high-pressure pipes and conduits, such as natural gas lines, water lines, and steam lines. The conduit repair apparatus includes a sleeve having an outer surface. outwardly flared end portions, a pair of longitudinal edges and a locking structure to lock the sleeve into a tubular configuration within an inner surface of a host pipe to be repaired. A resilient, compressible gasket is adapted to be applied over the outer surface of the sleeve, and a sealing membrane is adapted to be applied over the outer surface of the resilient, compressible gasket. A curable sealant is adapted to be applied over the sealing membrane, and the sealant is pressed by the resilient, compressible gasket between the outer surface of the sleeve and the inner surface of the host pipe while the sealant is cured. The resilient, compressible gasket may be formed as a layer of closed cell polyethylene or polyurethane foam. The curable sealant may include an epoxy, a polyester or a polyurethane, and an outer fiber mesh layer can be applied over sealant, wherein the fiber mesh permits easier handling and enables spreading of the sealant through openings in the mesh for more uniform spreading of the sealant into contact with the host pipe.
REFERENCES:
patent: 4346922 (1982-08-01), Ohtsuga et al.
patent: 4976290 (1990-12-01), Gelin et al.
patent: 5042532 (1991-08-01), Gilleland
patent: 5119862 (1992-06-01), Maimets et al.
patent: 5186897 (1993-02-01), Imoto et al.
patent: 5334429 (1994-08-01), Imoto et al.
patent: 5351720 (1994-10-01), Maimets et al.
patent: 5560395 (1996-10-01), Bissonnette et al.
patent: 5725026 (1998-03-01), Maimets
patent: 5857494 (1999-01-01), Tsukamoto et al.
patent: 5868169 (1999-02-01), Catallo
WO 93/18334 Method and Apparatus for Repairing Conduits Lembit Maimets, Sep. 1993.
Brinson Patrick
Link-Pipe (H. K.), Ltd.
LandOfFree
Apparatus and method for repairing pressure pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for repairing pressure pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for repairing pressure pipes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2041030