Patent ID: 7686348
Filing Date: 2010-03-30
Classification: B29C,F16L

Abstract:
1. A connecting device for connecting lines, comprising: at least two connections, each being provided on an end of the device, with at least one connection thereof comprising: a radially inner extension and a radially outer extension, the outer extension surrounding a portion of the inner extension, that form a receiving portion for a line end, wherein the inner extension has a first section and a second section with a wall thicker than a wall thickness of the first section, the inner extension protruding in a longitudinal direction beyond a terminal end of the outer extension, the terminal end of the outer extension defining an opening to an entrance port; and the inner extension comprising a transition provided between the two sections of the inner extension, and the profile of the transition being curve-shaped in the longitudinal direction of the connecting device, a section of the transition adjacent the first section of the inner extension has a concave curved surface in profile, a section of the transition adjacent the second section of the inner extension has a convex curved surface in profile, an inflection point is disposed between and directly adjoining the curved concave surface and the curved convex surface of the sections of the transition, the inflection point being disposed at the opening to the entrance port in a common plane with the terminal end of said outer extension.