Pipes and tubular conduits – Repairing – Patches
Patent
1995-06-27
1998-08-11
Brinson, Patrick F.
Pipes and tubular conduits
Repairing
Patches
138 97, 264269, F16L 5518
Patent
active
057913781
ABSTRACT:
A pumpable cement grout and method for use thereof for grouting liner pipes. The pumpable cement grout is a mixture of a hydraulic cement, water in an amount sufficient so that the water-to-cement ratio of the grout is from about 0.60 to about 1.00 by weight, and pregenerated aqueous foam in an amount sufficient to adjust the wet density of the grout to a value of from about 48 to about 72 pounds per cubic foot. The pressure at which the grout is injected into the cavity is maintained at or below a predetermined maximum pressure, so as to avoid collapsing the liner pipe.
REFERENCES:
patent: 3758319 (1973-09-01), Ergene
patent: 3774403 (1973-11-01), Cushing
patent: 3867159 (1975-02-01), Ergene
patent: 3979217 (1976-09-01), Sutton
patent: 4170248 (1979-10-01), Bennett et al.
patent: 4583784 (1986-04-01), Uhri
patent: 4678370 (1987-07-01), Allen
patent: 4786211 (1988-11-01), Leutner et al.
patent: 4867203 (1989-09-01), Jan De Putter
patent: 4938627 (1990-07-01), Lee
patent: 4948298 (1990-08-01), Hayden
patent: 4954016 (1990-09-01), Jurard
patent: 4954916 (1990-09-01), Storgard
patent: 4956932 (1990-09-01), Hahn et al.
patent: 5063967 (1991-11-01), Stephens
patent: 5096616 (1992-03-01), Kittle
patent: 5119839 (1992-06-01), Chao
patent: 5141363 (1992-08-01), Stephens
patent: 5190705 (1993-03-01), Corazza
Brinson Patrick F.
Hathaway Todd N.
LandOfFree
Method for grouting pipe liners does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for grouting pipe liners, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for grouting pipe liners will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-379634