Patent ID: 7066495

Claim:
A flexible conduit structure for connecting first and second pipes, comprising: a first conduit section having a body portion presenting a corrugation having a predetermined first diameter and an end portion for connection with said first pipe; a second conduit section having a body portion presenting a plurality of corrugations including at least one corrugation having a diameter substantially equal to said first diameter, said first and second conduit sections interfitting such that said corrugation of the first section mates with and seals with said one corrugation of the second section in a manner allowing relative rotation between said first and second conduit sections; an intermediate layer between said mating corrugations constructed from a material dissimilar from and not interactive with said mating corrugations; a coating of lubricant between said mating corrugations to reduce frictional engagement therebetween; and an end portion of said second conduit section for connection with said second pipe.