Patent ID: 7264281
Filing Date: 2007-09-04
Classification: F16L

Abstract:
1. Connection means comprising a coupling defining an internal channel having an end segment possessing an insertion opening for insertion of an endpiece and means for retaining the endpiece therein in a leaktight manner, said means comprising an annular sealing element that is axially compressible and is mounted in the coupling to have one face serving as a bearing surface for a terminal face of the endpiece, and an annularly shaped retaining element that is elastically deformable in a radial direction and is received in an inner groove of the end segment in order to have an inner circumferential portion projecting through an opening of the inner groove so as to be received in an outer groove of the endpiece, the inner groove having a first frustoconical flank beside the opening of the end segment to form means for shrinking the retaining element, and a second frustoconical flank on a side remote from the opening facing the first frustoconcial flank, said second flank being spaced apart from the first frustoconical flank by a distance such that the retaining element is received with clearance in the inner groove, and the terminal face of the endpiece and the outer groove thereof being spaced apart by a distance slightly greater than the distance between the face of the sealing element and the opening of the inner groove of the coupling.