METHOD FOR PIPELINE RECOVERY Russian patent published in 2016 - IPC F16L55/165 F16L58/10 B29C63/36 

FIELD: machine building.

SUBSTANCE: combined hose with located inside fabric tape is hooked by wire, and by winch is pulled through the pipeline with simultaneous impregnation by the polymer binder. At the pipeline output the wire is disconnected, and to the end of the sealed combined hose the second fabric tape is tied. The combined hose is filled with the compressed air. To remove voids at the pipeline angles of direction change the air pressure in the hose is reduced, and by the first fabric tape wound on drum at the pipeline beginning the combined hose with inversion is pulled in the pipeline such that end of the inverted hose will go beyond all angles of direction change. Then the air pressure in the hose is increased, and hose re-enters the pipeline with inversion. To create additional force in the direction of the hose inversion the second tape is wound on another drum at the pipeline end.

EFFECT: restoration of pipelines with points of the direction changes, including bends, branches and expansion joints meeting all quality requirements.