Patent ID: 7083204

Claim:
A pipe assembly, comprising: first and second corrugated metal pipes having respective first and second longitudinal axes and respective first and second ends; a first plastic cuff molded formed along the periphery of the first pipe end and embedding the first pipe end therein and a mating second plastic cuff formed along the periphery of the second pipe end and embedding the second pipe end therein; each of the first and second cuffs comprising a shoulder formed around the periphery of the associated first and second pipes; the first plastic cuff comprising a tongue, the second plastic cuff comprising a groove, and the first and second cuffs forming a mating tongue and groove joint peripherally spanning the first and second pipe ends; and fastening means spanning the first and second shoulders and abutting the first and second shoulders, the fastening means drawing the first and second pipe ends together axially and thereby sealing the first and second pipe ends along the tongue and groove joint.