Method of lining pipes

Details Method of lining pipes Method of lining pipes

1982-01-29

1983-08-09

Hoffman, James R.

Coating processes

Interior of hollow article coating

427235, 427238, 427239, B05D 722, B05D 142

Patent

active

043978908

ABSTRACT:
A method of lining a large pipe and small pipes branching therefrom with a seal composition, in which the pipes are lined as connected together, and the large pipe or the small pipes are lined first. The portion of the seal composition forced into the small pipes when the large pipe is lined with use of a running body is returned into the large pipe again and is subsequently applied, without being discharged from the system, to the lining layer of the large pipe as a top coat with use of a running body having a slightly smaller diameter than the running body. When one of the pipes has a greatly bent portion, a running body is used which comprises two members each shaped symmetrically, congruent with each other and interconnected by a flexible linear member.

REFERENCES:
patent: 3041204 (1962-06-01), Green
patent: 3237594 (1966-03-01), Weaver et al.

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