Abstract: A windshield washer fluid heater, on the engine cooling circuit of an automobile, with an exchange coil 7 around a rigid internal tube 1 which connects the flexible hoses 2 and 3. The exchanger coil 7 is embedded in the polymer material constituting the external envelope element 6 of the flexible hoses 2 and 3. Application to the windshield washing devices of automotive vehicles.

Abstract: A preferred membrane system is for connecting railway vehicles or the like. Each of the vehicles has longitudinal walls extending along a direction of movement of the vehicle and ends extending substantially transverse to the longitudinal walls. The system comprises an elastically deformable membrane having a tubular form for substantial alignment with the longitudinal walls between the ends of the vehicles being adjacent to one another. The membrane has opposite ends for being respectively connected to the ends of the vehicles being adjacent to one another. The membrane includes a plurality of corrugations with each of the corrugations extending around the tubular form. Elements for connecting the vehicle provide a predetermined distance between the ends thereof. The membrane and the corrugations thereof are partially compressed when the opposite ends are disposed from each other by the predetermined distance.

Abstract: Fitted coupling device, formed by two components, for connection to a flexible tube, having a female component and a male component on which said flexible tube is attached by thermal contraction of an external ring. The coupling device has an elastomer O-ring which is gradually compressed between two facing surfaces, one of which is essentially cylindrical and the other of which is a small-angle cone. The compression takes place during an axial manoeuver causing the rolling without sliding of said O-ring, which executes one or more complete turns on itself.

Abstract: Elastic support having deformable ball and socket joints for fastening a trim piece between two mobile elements, permitting the trim piece to remain in a median position, which includes two ball and socket joints exhibiting an elastic recall due to the adherized (or vulcanized) rubber-metal bond, the external rings being permanently fitted into a common assembly tube, the internal rings, in the shape of ball and socket joints, being permanently connected by fasteners in a plane in which the principal relative back-and-forth movements take place, and coming into contact with a thrust washer, by an axial thrust allowing a damping friction effect upon back-and-forth movements.

Abstract: A device designed to ensure running continuity between two successive railroad or road vehicles in spite of vertical movements, the lateral sway and the torsion between the floors of said vehicles, characterized in that it includes:(a) at each end, a deformable joint (10) which ensures tightness against dust, noise and weather,(b) a self-supporting element (6), which is deformable under torsional stresses, comprised of an elastomer compound (17) reinforced by at least one pair of metal or textile cord plies (16a) and (16b) and resting on two elastic supporting members (7), which are deformable under shear stress, and(c) angle base (9) mounted onto the floors of vehicles, fitted to said continuous elastic supporting members (7).

Abstract: An intercirculation tunnel between successive railroad cars or highway vehicles for ensuring protection against bad weather and atmospheric agents as well as noise and heat insulation as a unitized structure with oval constant cross section. The structure has a self-supporting wall that is elastically deformable throughout without mechanical devices, and that is composed of a multilayer composite of compact elastomers including an outer layer and an inner layer which can also contain reinforcements and an intermediate layer of a cellular polymer material.

Abstract: A tubular joint for connecting an intercommunication tunnel forming a passage compartment placed between two successive railroad on road vehicles or two successive members of access gangways to ships or to planes, said tubular joint being fitted on one hand to lateral, upper and lower walls of said vehicles or of said access gangways and on the other hand on said intercommunication tunnel, and being inflated with a gas under a relative pressure of 0.1 to 0.5 bar; said tubular joint having a symmetry plane and being composed of two rolling membranes (1a), (1b), that are U-Shaped, assembled by tightening of their ends (11a) and (11b) in said symmetry plane of said tubular joint (1) to provide a connection which can withstand all pulls exerted on the intercommunication tunnel.

Abstract: Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by an armature with linked segments, embedded in rubber, composed of segments made integral by a nonrigid linking element in order to allow bead to bend in the axial direction so that it can slide into the hole in rigid wall.The invention applies to any industrial assembly, for example expansion joints, or any assembly on a vehicle, such as air suspension diaphragms.

Abstract: Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by a fragmented armature embedded in rubber, composed of individual elements in order to allow bead to bend in the axial direction so that it can slide into a bore of the rigid wall.The invention applies to any industrial assembly, such as for example, expansion joints, or any assembly on a vehicle, such as air suspension diaphragms.

Abstract: A vacuum-operated mount for mounting an engine of a passenger or commercial motor vehicle which includes a variable volume chamber enclosed by a thick rubber encasement. The encasement is adapted to tolerate a force greater than the suspended engine under the effect of a moderated vacuum affected by controlling a connection of the variable volume chamber with two additional enclosures or chambers so as to increase or decrease a vacuum in the work chamber in order to create an accelerating force for correcting a displacement of the engine.

Abstract: A vibration insulation arrangement for a load which includes a rubber mount formed with a rubber enclosure adapted to alter its shape, and with modulated auxiliary pressure that when displacements of the mount occur an active absorption is provided by a rapid communication of an interior of the rubber enclosure with two additional enclosures which are maintained at preadjusted pressures in order to exert a predetermined pressure so as to provide for a vibration damping of the load.