Abstract: Hydropneumatic accumulator of the type comprising a sphere having an internal cavity subdivided into two chambers, one chamber containing a gas and the other a liquid. The subdivision is accomplished by an elastic impermeable membrane for the gas and liquid, the membrane being formed and comprising a copolymeric impermeable film including OH groups, and being impermeable to gas, two layers between which the film is incorporated and including an elastic material of a copolymer having blocks of polyamides and blocks of polyethers and a rubber coating of elastic material positioned on at least one of the layers.

Abstract: A sphere, in particular a pneumatic sphere, which comprises a rigid jacket (11) having an upper portion (11a, 21a) and a lower portion (11b) and a pliable, deformable membrane (2) arranged inside this jacket in such a way as to delimit an upper chamber (3) and a lower chamber (4), the membrane being attached in the area of junction (11c) between the upper and lower portions and being movable between an extreme lowered position and an extreme raised position. The jacket has a flattened overall shape and, in the extreme raised position, the membrane substantially coincides with the inner surface of the upper portion (11a, 21a) of the jacket.

Abstract: A child seat cooperating with a vehicle seat has a support frame comprising two lateral plates and at least one locking element at the rear of the support frame. A handle pivotably attached to the support frame has a central carrying portion and two pivotable lateral portions. A locking mechanism is positioned on at least one of the lateral plates and cooperates with a complementary element on the vehicle seat.

Abstract: An electrovalve installation of the type comprising an electrovalve and a device for fastening said electrovalve to a support, such as a hydraulic block. The installation includes a collar (2) for detachably mounting the electrovalve (1) on the support (3).

Abstract: A device for controlling the transmission of an automotive vehicle. A transmission cable (8) is connected to the end of an arm (15), beginning at which this component is actuated in a direction perpendicular to two orthogonal secant swivel pins (6, 7) by a return-motion lever (19) pivoting on a pin (20) lying in the same plane as the two secant pins (6, 7), in such a way that the transmission component (8) is placed at a desired distance spaced apart from the operating lever (5) and in proximity to the other transmission component (9). The invention is used in the automotive industry.

Abstract: A control device for a suspension such as a hydropneumatic suspension for a motor vehicle, including three actuators (E1, E2, E3) capable of supplying a liquid to or removing a liquid from three independent suspension lines. The actuators are driven by a computer (18) in accordance with a predetermined principle, which takes into consideration the position of the car body as well as first, second and third derivatives with respect to time of the parameters representative of the position.

Abstract: A clamp-like device for the fastening of an element to a metal sheet part of a vehicle, comprising a tongue directly cut out in the metal sheet of the vehicle part and suitably shaped in accordance with the element to be held, the device being applicable to an automotive vehicle and in particular to the fastening of electric cable or piping harnesses.

Abstract: An elastic articulation including an element for damping out the vertical and longitudinal deflections and an element for filtering out the low amplitudes, independent of and coaxial with the damping element. The filtering element and the damping element are capable of moving one with respect to the other.

Abstract: A spare tire-storage device incorporating a movable support basket capable of housing the tire, this basket being coupled to a housing used to store an object. The coupling arrangement (12) is configured in such a way as to permit positioning of the housing (6) in a space located between the support basket (1) and a car body component (17), so that the housing (6) cannot be removed when the support basket (1) is in the locked position.

Abstract: In this system including a switching device (21) interposed between an information processing unit (22) and an analogue switch (23), in which the unit includes an analogue information input (24) and a wake-up information input (25) originating from an output of the switch, the unit includes a stand-by/wake-up state control output (27) for the device, and this device includes a switch facility (28) openable by the state control output, and which is interposed between the output of the switch and a comparator (29) adapted so as to compare the output from the switch with a reference level so as to deliver a corresponding command at the wake-up information input, and a switch facility (30) closeable by the state control output, and which is interposed between the output of the switch and the analogue information input (24).

Abstract: An arrangement for damping movement of a mass with respect to a support to which the mass is connected by a suspension device. The suspension device is provided with one or more springs and a hydraulic damping system through which a hydraulic fluid flows. One or more devices are present for wire-drawing this fluid through a respective aperture. Each wire-drawing device is arranged to continuously vary the damping characteristics by controlling the extent of opening of the aperture(s) and thus regulate the flow of the fluid through the hydraulic damping system.

Abstract: The present invention concerns a tool connectable to a robot for automatic installation of a sealing joint in a fillister or groove. The tool can be used, for example, for the automatic installation of a sealing joint around a vehicle door. The tool includes a frame designed to be attached to the wrist of a robot, and to which a functioning part of the tool is pivotally attached. The functioning part works in conjunction with the frame by means of pneumatic jacks which flexibly and precisely adapt the motion of the tool to the contour of the joint or of the element housing the joint along the path which the robot causes the tool to follow.

Abstract: This data communication system employing carrier currents comprises a power supply (4), to which are connected supply lines (2, 3) to which supply lines are connected functional devices (6) of the vehicle communicating with one another. These functional devices (6) comprise a communication interface (10) and an associated application equipment (12) communicating with other functional devices (6) through its communication interface (10), the communication interface (10) comprising means for testing the validation of at least one predetermined criterion and means commanding control means of the power supply of the associated application equipment (12) for commanding, as a function of the validation of the predetermined criterion, the feeding or otherwise of the associated application equipment (12) by the supply lines (2, 3).

Abstract: Mechanically controlled power transmission device comprising a rotary engine driving, through a lever and a clevis, a hydraulic slide valve which consists, in a known manner, of a rod sliding in a hole and includes blocks capable of selectively establishing communication between firstly a user device and secondly a high pressure source or an outlet. Two springs act on the slide valve in opposite directions, return the latter, in the event of a breakdown, into a neutral position which is preferably a position in which no communication is established. The device of the invention is for use in the motor car industry.

Abstract: A hydraulic jack includes three chambers (3, 4, 5), two of these three chambers being annular and enclosing a sliding cylindrical element (8) including a first piston (9) delimiting the two annular chambers (3, 4), and a second piston (10) delimiting the third, substantially cylindrical chamber (5) which is contiguous with one of the two annular chambers (3, 4). The hydraulic jack is used in hydropneumatic suspensions for automotive vehicles.

Abstract: The subject of the invention is a device for protecting a rail of a sliding door of a motor vehicle, the said rail being fitted in a horizontal groove formed in the bodyshell of the vehicle and interacting with members for moving this door, which members can move along the said rail as this door is slid between an open position and a closed position. The device comprises a flap mounted in the groove and pivoted by the said members for moving the door between a substantially horizontal position uncovering the groove when the door is in the open position, and a substantially vertical position filling the said groove when this door is in the closed position.

Abstract: This device in which the network includes a transmission cable (4) fitted with a pair of conductors (2, 3), is characterized in that each conductor (2, 3) of the cable is linked at each of its ends to a terminal of a resistor (9, 10) whose value is equal to half the value of the characteristic impedance of the cable (4) and the other terminal of which is linked to a voltage source (11, 12).

Abstract: A plastic material is injected in the fluid state into a flexible closed mold (2, 3) comprising a molding cavity (6) in which is placed the edge of the glass pane (5). The plastic material is injected into the cavity (6) of the mold in the inert state and is then activated by high-frequency electromagnetic radiation or by microwave radiation. An insert (22) is placed in the cavity (6) of the mold before the injection of the plastic material. The injection and the subsequent hardening of the plastic material are carried out inside the cavity of the mold (6) [sic] in which cavity are arranged, during these operations, the edge (5a) of the glass pane (5), and the insert (22) in their definitive relative position on the glass pane in the shaped state. The invention can be used to produce glass panes for motor vehicles, comprising inserts consisting of trim strips, for a decorative purpose, or of elements such as ducts, cables or fastening screws having a functional purpose.

Abstract: The device comprises, inside a cylindrical case (3) of the exhaust manifold (2), a catalyst body (12) in a central position and means (14) for adsorbing hydrocarbons in a peripheral position around the catalyst body (12). Preferably, the catalyst body (12) is disposed in an exhaust pipe (8) constituting an end part of an exhaust line (8a) and the adsorption means (14) is disposed in a peripheral annular space between the pipe (8) and the inner surface of the case (3) of the manifold.

Abstract: An impermeable elastic membrane for hydropneumatic accumulators is made from an impermeable film of completely hydrolyzed polyvinyl alcohol, with a high molecular weight, and plasticized, with protective layers on both sides of polyamide, ethylene vinyl alcohol, or ethylene vinyl acetate. The membrane may be used in the hydropneumatic suspension of an automobile. The film can be obtained by extrusion, by injection molding, or by pressure molding.