Patent ID: 7322617

Claim:
A corrugated tube having a corrugated end provided with a coupling device, wherein the corrugated tube has corrugations following one another at a predetermined pitch and possessing a minimum inside diameter and a maximum inside diameter, the coupling device is constituted by an endpiece engaged by force in said corrugated end and constituted by a tubular body possessing a first zone provided on the outside with at least two annular barbs of the Christmas-tree type that are spaced apart by a distance corresponding to the pitch of the corrugations of the tube and having a maximum diameter greater than the maximum inside diameter of the tube, the first zone presenting between the barbs a minimum diameter greater than the minimum inside diameter of the tube, and wherein the body has a second zone extending immediately behind the barbs to receive at least one end corrugation of the tube and having an outside diameter less than a diameter of a junction zone between two annular barbs.