Pipe liner bag everting nozzle and pipe lining method

Details Pipe liner bag everting nozzle and pipe lining method Pipe liner bag everting nozzle and pipe lining method

2006-05-30

2006-05-30

Hook, James (Department: 3754)

Pipes and tubular conduits

Repairing

Patches

C138S097000

Reexamination Certificate

active

07051766

ABSTRACT:
A pipe liner bag everting nozzle is provided for allowing an operator to freely access a manhole during a lining operation. A pipe liner bag everting nozzle comprises a guide tube fixing end for fixing one end of a guide tube, and a pipe liner bag fixing end for fixing a folded end of an uneverted pipe liner bag passed through the guide tube, wherein the guide tube fixing end has a diameter smaller than a diameter of the pipe liner bag fixing end. Since a guide tube having a smaller diameter than that of a pipe line to be repaired (or the pipe liner bag) can be used, a sufficient gap is formed between the guide tube and the manhole, thereby allowing the operator to freely access the manhole during the lining operation for inspection and confirmation of a lining situation.

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