Hydraulic and earth engineering – Miscellaneous
Patent
1997-07-22
1999-06-29
Taylor, Dennis L.
Hydraulic and earth engineering
Miscellaneous
156287, 156294, 405 52, 405154, 428 86, E02D 2912
Patent
active
059158867
ABSTRACT:
A liner assembly for a manhole or passage comprises a multiple-ply, generally cylindrical tube. The outermost ply includes inner and outer surfaces and is adapted for being impregnated with material for rigidifying and bonding the outer surface of the outermost ply to a manhole or passage. The innermost ply includes inner and outer surfaces and is adapted for being impregnated with a material for rigidifying the innermost ply. An impermeable ply is disposed between the innermost and outermost plies. The impermeable ply includes an impermeable membrane having fibers impregnated on the inner and outer surfaces of the impermeable ply. The fibers of the inner surface of the impermeable ply bond with the epoxy impregnated outer surface of the innermost ply. Likewise, the fibers of the outer surface of the impermeable ply bond with the epoxy impregnated inner surface of the outermost ply, so that the manhole or passage becomes structurally reinforced.
REFERENCES:
patent: 4009063 (1977-02-01), Wood
patent: 4135958 (1979-01-01), Wood
patent: 4776370 (1988-10-01), Long, Jr.
patent: 4861634 (1989-08-01), Renaud
patent: 5106440 (1992-04-01), Tangeman
patent: 5265981 (1993-11-01), McNeil
patent: 5280811 (1994-01-01), Catallo et al.
patent: 5382461 (1995-01-01), Wu
patent: 5490744 (1996-02-01), McNeil
patent: 5633063 (1997-05-01), Lause et al.
LandOfFree
Manhole liner including felt impregnated vinyl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manhole liner including felt impregnated vinyl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manhole liner including felt impregnated vinyl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1369833