Patent ID: 7611172

Claim:
A coupling comprising: a base body being partially inserted into a tube end; a sealing element disposed on said base body; a sleeve comprising axially opposing anterior and posterior sleeve parts; said sleeve parts each including axially opposing anterior and posterior ends and an interior surface; said interior surface of said anterior part supporting the tube end; said sleeve parts being permanently and fixedly connected at a radial lip; a support body disposed on said posterior end of said anterior sleeve part; said support body including an exterior positioning surface disposed at a pre-determined angle so that a radius of said surface increases toward said anterior end of said anterior sleeve part; an annular gap disposed between said base body and said sleeve for receiving the tube end; said interior surface of said posterior sleeve part being spaced from said exterior positioning surface of said support body for forming a free space; a retaining element disposed axially against and radially exterior to said support body; said retaining element including a closed annular part disposed radially adjacent to said radial lip connecting said sleeve parts; said retaining element including elastic retaining claws disposed against said exterior positioning surface of said support body for fixing the tube end to said coupling; and said retaining claws being movable in said free space.