Patent ID: 9366370
Filing Date: 2016-06-14
CPC Classification: F16L

Claim Text:
1. A coupling device for a duct, comprising: a duct, a coupling comprising seals that hermetically slide with an extremity of the duct along a total distance d parallel to a longitudinal axis of said duct; and a stopper that stops a translational movement of the extremity of the duct within the coupling for a travel of d1 which is less than d, the stopper extending in a radial direction of the duct from an outer peripheral surface of the duct, wherein the stopper includes a region adjacent to the outer peripheral surface configured to shear the stopper from the duct in a direction parallel to the longitudinal axis, and the coupling includes an inner wall and an exterior wall which is radially outward from the inner wall, the extremity of the duct sliding between the inner wall and the outer wall.