Patent ID: 6688337
Filing Date: 2004-02-10
Classification: F16L

Abstract:
A patch adapted for insertion into a main pipeline to sealingly repair a junction between the main pipeline and a lateral service line, comprising:a tubular stem having a substantially rigid portion, a flexible portion, a first end and a second end, the second end having a substantially open aperture for communication with the lateral service line; a convex flange having an exterior surface, an interior surface and a cutout portion operatively sized and interconnected to the first end of said tubular stem, wherein said tubular stem extends away from the exterior surface of said convex flange; said flexible portion of said tubular stem having deformation properties adapted to allow the rigid portion of the tubular stem to be selectively engaged into said lateral service line at the angle at which the lateral service line is joined to the main pipeline; and, sealing means interconnected to at least a portion of the exterior surface of said convex flange and having resilient deformation properties adapted to provide sealing engagement between said convex flange and an interior surface of the main pipeline.