Apparatus for repairing a transport pipe

Details Apparatus for repairing a transport pipe Apparatus for repairing a transport pipe

1992-11-02

1994-01-25

Briggs, William

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

2940213, 138 99, 285 21, B23P 600, F16L 5516

Patent

active

052806707

ABSTRACT:
This describes an apparatus for repairing a plastic transport pipe with a defective section while the pipe is under pressure. A pressure vessel encloses the defective section and seals with the pipe. The defective section is cut in two and the defective section drops out into the lower space of the vessel. A repair nipple is then moved into the space between the two cut ends of the pipe. Electrofusion collars are placed over the joint between the insert nipple and the cut ends of the transport pipe. The electrofusion collars are then energized to effect a leakproof joint between the insert nipple and the two ends of the transport pipe. The insert nipple may be any replacement section desired, such as a section with a Tee in it.

REFERENCES:
patent: 3171419 (1965-03-01), Black
patent: 4014180 (1972-03-01), Kelly et al.
patent: 4049480 (1977-09-01), Kutschke
patent: 4756338 (1988-07-01), Guyatt et al.

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