Patent ID: 9611959
Date: 2017-04-04
CPC Classifications: F16L

Claim:
1. A coupling device for releasably connecting fluid-carrying duct ends of ducts, the coupling device comprising: jackets, connectable to the ends of each of the ducts, the jackets each comprising at least first and second annular ribs housing a first annular sealing element engaged by an inner shell; and an outer shell having at least one radially inward extending rib either arranged in an axial distance from a further annular rib of the jackets or engaging an axial recess of the jackets defined between the further annular rib and a fourth annular rib to center the inner shell and the outer shell in a position allowing for both an axial movement of said duct ends relative to one another and/or an angular movement of said duct ends relative to one another, independent from maintaining a fluid-tight connection at said first annular seating element, respectively, the outer shell comprising: wherein the coupling device is made of a high-performance thermoplastic material.