Patent attributes
A coupling device includes a first tension loop connected to a second tension loop. The first and second tension loops are moveable with respect to one another to establish open and closed positions. An interior surface is defined by the first and second tension loops in the closed position. A recess is defined by the interior surface. A first connecting flange clamping edge is defined by the first and second tension loops on a first side of the recess. A second connecting flange clamping edge is defined by the first and second tension loops on a second side of the recess. At a facing end, at least one of the first and second tension loops has an introduction surface abutting the second connection flange clamping edge, the introduction surface being beveled radially inwardly towards a central hole defined by the first and second tension loops.
