Pipes and tubular conduits – Repairing – Patches
Patent
1997-06-17
1998-10-06
Brinson, Patrick F.
Pipes and tubular conduits
Repairing
Patches
138 97, 264269, 264516, 156287, 425503, F16L 5516, B29C 6336
Patent
active
058162933
ABSTRACT:
The apparatus for installing a repair liner/sleeve within a pipeline includes a rigid tube supported above a manhole or excavation leading to the entry of the pipeline to be repaired. A rigid tube is supported on a plurality of legs aligned above the manhole, with a vertical tube attached to the rigid tube and extending downwardly into the hole. A hollow tubular shoe is attached to the lower end of the vertical tube, and is curved to redirect a liner/bladder assembly from the vertical orientation within the vertical tube to a horizontal orientation aligned with the pipeline to be repaired. The tubular shoe includes a plurality of upper rollers and lower rollers between which the liner/bladder assembly will be directed for reorientation from the vertical tube to the horizontal pipeline. The rigid tube includes a pivotal lid which will seal the upper end of the rigid tube, to permit pressurization of the rigid tube, flexible tube, and shoe. An air inlet port in the lid permits the introduction of pressurizing fluid, and a second port in the lid receives a control line for attachment to the liner/bladder assembly, for removal of the bladder after repair of the pipeline.
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Insituform (1985) Illustrates installation of a sewer pipe liner by the inversion method using a seamed, resin-impregnated liner.
NuPipe (Civil Engineering Magazine 1993) explains the installation method of a softened PVC pipe liner.
Paltem Portable Water Hose Lining Method describes a pipe liner installation method using a guide belt (no date available).
Paltem Sewer Hose Lining Method describes a compressed air inversion method of pipe lining (no date available).
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