Lining material for pipe lines and a process for providing pipe

Details Lining material for pipe lines and a process for providing pipe Lining material for pipe lines and a process for providing pipe

1992-06-23

1994-08-02

Lesmes, George F.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 3691, 428286, 428290, 138 98, 138128, B29D 2200

Patent

active

053344294

ABSTRACT:
A lining material for pipe lines, especially those buried in the ground such as sewage pipe lines, and a process for providing such pipe lines therewith, includes a flexible tubular film, a resin-impregnated sheet covering the outer surface of the flexible tubular film, and a tubular covering material having a strong resistance to tensile force. The sheet may be constructed by several units of sheet fractions which are overlapped in both lateral end portions so as to be slidable over each other in opposite directions to form a tubular sheet. The lining material is applicable for repair/and reinforcement to the inner surface of a pipe line having damages portions. According to the process for providing pipelines with this lining material, thermocuring of the lining material applied onto the inner surface of a pipe line can be carried out by moving a nozzle for jetting pressurized steam from one end to the other end of the pipe line without applying high pressure to the pipe line. Thus, this process is particularly suited for applying a lining material to a superannuated sewage pipe line or general sewage pipe lines having damaged portions.

REFERENCES:
patent: 3261374 (1966-07-01), Anderson et al.
patent: 3996967 (1976-12-01), Takada
patent: 4976290 (1990-12-01), Gelin et al.
English translation of JP, A, 3-292127.

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