Abstract: A spring clamping collar constituted by a rolled-up metal strip with the end portions of said strip each being of a width that is substantially equal to half the width of the strip, said portions being disposed beside each other and being provided with tabs that extend radially outwardly from the collar, thereby forming abutments for engaging a pliers-like tool. Each tab extends over substantially the entire width of the strip and possesses, on its side remote from its connection to the corresponding end portion of the strip, an extension which extends over the other end portion of the strip and is directed away from the tab carried by said other end portion.

Abstract: A clamping spring collar, constituted by a rolled-up metal strip having end portions each of which is of a width substantially equal to half the width of the strip, said end portions being disposed side by side and being provided with respective tabs that are directed radially outwardly from the collar, which tabs form abutments for engaging a pliers-like tool, the strip having a cross-section that constitutes a flattened V-shape such that the central region of the inside surface of the collar has a diameter that is smaller than that of its lateral regions, wherein the angle formed between the two branches of the V-shape lies in the range 120.degree. to 165.degree., and wherein the ratio between the thickness of the strip and the length of each of its branches itself lies in the range 0.2 to 0.5.

Abstract: Device for connection between a flexible pipe 1 and a rigid tubular joining piece 2 intended to be fitted inside the flexible pipe. Two coaxial, rigid, tubular elements 3, 4 are disposed respectively inside and outside the end of the flexible pipe and embrace this end. The inner tubular element 3 and the outer tubular element 4 each present, in contact with the flexible pipe, two cylindrical portions of different diameters, 3a,4a-3b,4b, the one of larger diameter being located towards the free end of the flexible pipe. The portion of larger diameter 3b of the inner tubular element thus constitutes, on its inner face, a housing 5 for the O-ring, said housing being closed by an annular wall 8 fixed to the outer tubular element 4.

Abstract: This invention relates to an element for rapid connection between a supple hose pipe, for example, made of rubber, and a tube made of rigid material, such as metal, or semi-rigid material, such as a plastic material. It is constituted by an assembly of an inner and outer bush tightened around the hose pipe. A housing for an O-ring is partially formed on the inner surface of the inner bush. The housing is closed by an annular radial wall distinct from the inner bush. A tube is immobilized in the element by a split ring which provides a stop for a shoulder located at the end of an annular ramp provided on the tube. The split ring is located in a annular housing formed partly by the radial portion of a distinct bush.

Abstract: Device for locking two coaxial tubes designed to be fitted into each other, comprising a longitudinal tab which is elastically flexible in the radial direction, connected to the outer tube and presenting at least one area capable of coming into axial abutment, once the two tubes have been fitted together, with a shoulder provided in register on the outer face of the inner tube and projecting radially with respect thereto. The wall of the outer tube 2 presents a groove 5, open at the end of the tube, whose lateral edges are parallel to the axis of the tube. The outer face of the inner tube 1 presents two radially projecting guide surfaces, said surfaces being parallel to the axis of the tube and spaced apart from each other by a distance substantially equal to the one separating the lateral edges of &he groove of the outer tube, whilst the free end of the locking tab 7 is located substantially in the transverse plane of the end of the outer tube.

Abstract: A device is disclosed for hermetically coupling two smooth tubes of the same diameter disposed end to end, particularly for coupling two elements of the exhaust pipe of an engine, such as those of automobile vehicles. A bush in one piece comprises a longitudinal slot provided with two radial assembly lips and surrounds the opposite ends of the two tubes on which it is clamped by a screw or a bolt traversing the radial lips. The bush presents two frusto-conical ends located on either side of a cylindrical central portion intended to be mounted astride the zone of connection of the two tubes and each lip of the longitudinal slot comprises at least one rigidifying element extending between said lip and each of the corresponding frusto-conical ends of the bush.