Patent ID: 6517116
Filing Date: 2003-02-11
Classification: B60K,F16L,Y10S

Abstract:
A pipe-shaped socket for attachment to an opening of a container of primarily thermoplastic material, the pipe-shaped socket comprising:a tubular first part comprised primarily of a first thermoplastic material that has at most a slight swelling capacity and provided with a first end with first and second outer ribs; an annular second part comprised primarily of a second thermoplastic material that has a swelling capacity that is greater than that of the first thermoplastic material; the annular second part having a first rim of a first diameter and a second rim of a second diameter, wherein the first diameter is smaller than the second diameter; wherein the second rim is configured to be connected by material-bonding to an edge area of the opening of the container; wherein the annular second part is connected with the first rim in a material-bonding and positive-locking way to the tubular first part between the first and second outer ribs by injection molding one of the first and second parts about the other one of the first and second parts; wherein the annular second part is bell-shaped and has an inner side; wherein the second outer rib of the tubular first part positioned between the first and second rims of the annular second part has a circumferential flexible lip welded to the inner side of the annular second part; and wherein the flexible lip extends toward the second rim of the annular second part so that a majority of the inner side of the annular second part is covered by the tubular first part.