Apparatus and method for repairing a pipeline

Pipes and tubular conduits – Repairing – Patches

Patent

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Details

138 97, 156294, 264269, 264516, F16L 5516

Patent

active

059642491

ABSTRACT:
An apparatus for repairing a pipeline includes an elongated flexible tube with one end inverted upon itself to create an outer inverted portion and an inner non-inverted portion connected at an inversion end. An elongated sleeve-shaped liner impregnated with rosin is fitted within the non-inverted portion of the tube member in contact with the interior surface thereof. A plurality of attachment strips are frangible connected at one end to the liner, and permanently affixed to the tube inner surface, such that inversion of the tube member will cause the attachment strips to invert to the exterior of the inverted portion, and thereby also invert the liner to the exterior surface of the inverted portion of the tube.

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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 decribes a compressed air inversion method of pipe lining (no date available).

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