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

1994-04-08

1996-04-02

Raimund, Christopher W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 94, 156287, E04B 200

Patent

active

055036953

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/or reinforcement to the inner surface of a pipe line having damaged portions. According to the process for providing pipe lines 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.

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