Patent ID: 8567824
Filing Date: 2013-10-29
Classification: F02B,F02M,F16L,Y10T

Abstract:
1. A polymer duct configured to be connected to a nozzle of a system for transporting a fluid, the duct comprising a circumferential groove into which is mounted a clamping collar configured to clamp the duct against the nozzle, the groove being delimited by two lateral rims comprising radially projecting lateral studs with which the collar cooperates to be rotationally blocked relative to the duct, wherein the clamping collar comprises: a circumferential clamping strip having two ends which overlap in an overlap region of the strip, the strip having two radially internal and external overlapping faces; a strip clamping member mounted in contact with said overlapping faces, and a non-metallic blocking cover having an abutment portion and mounted on the strip clamping member for blocking the rotation of the clamping collar in the groove by rotational abutment of the abutment portion against said studs, wherein said blocking cover bears on said external overlapping face and covers the clamping member radially outside said external overlapping face, and wherein the abutment portion comprises at least one pair of lateral fins which extend in the radial and axial directions and radially above said external overlapping face, both lateral fins of said at least one pair of lateral fins abutting against axial and lateral faces of two of said lateral studs respectively formed on both rims of said groove.