METHOD, SYSTEM AND DEVICE FOR APPLICATION OF COATING ONTO CONNECTIONS AND ADAPTING SECTIONS OF GAS PIPELINES IN USE Russian patent published in 2003 - IPC

FIELD: construction of pipelines. SUBSTANCE: invention is to be used at repair and operation of pipelines to prevent leakage of handled gas. Proposed system contains inlet unit to be connected to pipeline and provided with hole, and device for application of coating with spraying mechanism, and also adhesive material. Flexible tube gets with sliding into hole of inlet unit. Coating applicator is coupled with flexible tube. Drive device is coupled with flexible tube to provide its travel along pipeline. Spraying mechanism is connected to second end of coating applicator and is designed for spraying adhesive material onto said inner surface of pipeline. EFFECT: improved reliability of gas pipelines. 25 cl, 12 dwg