Patent ID: 6494497
Filing Date: 2002-12-17
Classification: F16L,Y10S

Abstract:
A diffusion-tight fluid conduit for hydrocarbon-containing fluids, the fluid conduit comprising:a corrugated pipe of corrosion-resistant metal having an inner side and an outer side, wherein the outer side is exposed; an inner pipe comprising plastic material arranged inside the corrugated pipe and having a smooth inner side and a smooth outer side; a first coupling member of thermoplastic material seal-tightly connected to a first end of the corrugated pipe; and a plastic ring injection-molded about the first end of the corrugated pipe and about a section of the first coupling member adjacent the first end of the corrugated pipe, such that the plastic ring is positive-lockingly connected to the first end of the corrugated pipe and the plastic ring and the first coupling member are connected by a fused material-bonding connection.