Patent ID: 6361083
Filing Date: 2002-03-26
Classification: F16B,F16L

Abstract:
A screw joint for pipes, in particular for sanitary or heating pipes of plastic material or a composite material of plastic and metal, comprising:at least one screw joint member having a substantially cylindrical portion, in which a thread with at least one helical raised portion is formed; wherein in at least one axial portion of the thread, the at least one raised portion is made of a material that is more elastic than the material of the cylindrical portion, and in said axial portion of the thread, the at least one raised portion has a base section adjoining the cylindrical portion and projecting therefrom, and an end section radially adjoining the base section, wherein said cylindrical portion and said end section are each comprised of a plastic material, with said end section being comprised of a material that is more elastic than the material of said cylindrical portion.