Patent ID: 6227764
Filing Date: 2001-05-08
Classification: F16L

Abstract:
A pipe rehabilitation system for introducing a lining hose containing curable resin from a main pipeline into a lateral connection, comprising:a shield having an arcuate configuration and complementing an inner contour of a main pipeline in an area of an inlet port of a lateral connection of said main pipeline, said shield having an outlet opening to be aligned with the inlet port of the lateral connection and defined by a cross section which corresponds to a cross section of the inlet port of the lateral connection;a pipe having a first end extending from the outlet opening inwardly into the main pipeline, and a second end;a lining hose containing curable resin and having associated therewith a calibration hose; anda conduit connected to the second end of the pipe and provided for conducting a pressurized fluid for everting the lining hose and the calibration hose in the lateral connection, a rope being secured to a closed end of the calibration hose, an open end of the calibration hose being secured adjacent the outlet opening of the shield, the calibration hose being removable from the lateral connection by the rope.