Pipeline for relining sewers and water lines without excavation

Details Pipeline for relining sewers and water lines without excavation Pipeline for relining sewers and water lines without excavation

1990-07-16

1992-01-07

Arola, Dave W.

Pipe joints or couplings

Repair

285 55, 285355, 285423, 285921, F16L 5518

Patent

active

050784307

ABSTRACT:
A method is disclosed for relining buried pipeline with interconnectable plastic type pipe sections. The method comprises gaining access to an open end of the buried pipeline, such as through a manhole, passing pipe sections down the manhole and inserting individually each pipe section into the buried pipeline open end. Each pipe section is of a length to permit, within the confines of the manhole, insertion of each pipe section into the pipeline open end. Each pipe is of a diameter to fit within the pipeline. The pipe section to be inserted is interconnected to the pipe section already inserted within the buried pipeline. Such interconnected sections are sequentially moved into the buried pipeline to permit insertion of the next pipe section into buried pipeline until the entire length of the pipeline to the next access area has been relined.

REFERENCES:
patent: 2366067 (1944-12-01), Smith
patent: 2926701 (1960-03-01), Campbell
patent: 3508771 (1970-04-01), Duret
patent: 3784235 (1974-01-01), Kessler et al.
patent: 4779902 (1988-10-01), Lee
patent: 4796669 (1989-01-01), Onge
Nipak Bulletin, "Sewer Renewal by Inspection with Nipak Polyethylene Pipe", Dallas, Tex., Nipak, by 5/9/73 or earlier.
St. Onge, H. S., "Updating Aging Sewers without Trenching," Engineering and Contract Record, Jul. 1974, pp. 40-44.

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