Patent ID: 7306264

Claim:
In a corrugated pipe comprising two sections joined by telescopically mating a male end of one section with a female end of the other section, the improvement comprising: an annular sealing element fixed to the exterior surface of the male end and disposed to sealingly engage the interior surface of the female end; an annular band of reinforcing material disposed around the exterior surface of the female end at a position along the longitudinal axis thereof that is in general alignment with the sealing element, the reinforcing material arranged to prevent loss of a sealing engagement between the female end and the sealing element when the female end is subjected to a predetermined level of internal pressure; and wherein the reinforcing material is not a hose clamp, the annular sealing element is disposed in an annular channel in the outer surface of the male end, the male end includes at least two corrugations comprising at least two axially-spaced, annular crests and valleys therebetween, the two crests defining the outside diameter of the male end, the annular channel being formed in one of the crests, and the male end includes an annular intermediate corrugation defining an outside diameter greater than the outside diameter of the male end, and being disposed to engage the distal end of the female end when fully mated.