Abstract: Friction device includes at least two members, one of which is mobile, or potentially mobile, in terms of relative displacement with respect to the other under the action of an external stimulus. The relative displacement is liable to cause the relative displacement of two friction surfaces subjected to pressing forces, so as to convert the external stimulus into a friction force and to thus control the displacement of the mobile or potentially mobile member. The pressing forces are produced by pre-stressing mechanisms and the members are able to act on the effects of the pre-stressing mechanisms so as to use the resultant effect of the relative displacement of the mobile or potentially mobile member to reduce the pressing forces.

Abstract: The invention relates to a belayer/descender safety device (1), cooperating with a rope (2), comprising means (5) to hold said rope (2) and rotationally fixed to a chassis (6) on which enclosure means (10) for said rope (2) are mounted with pivoting and cooperating with said holding means (5). The enclosure means (10) and the chassis (6) comprise a housing (12) in opposition in the locking position which cooperates with a hook means, in particular, a spring hook, wherein said holding means (5) has the form of a pulley housing means for regulation of the speed of rotation thereof.

Abstract: The invention relates to a friction damper comprising at least two guided relatively displaceable assemblies (100, 200), one of which is connected to a fixed reference and the other is movable, an intermediate member (300) which rests on the first assembly (100) and is relatively frictionally movable with respect thereto by an applied force and elastic means (400) acting upon said intermediate member.

Abstract: The invention relates to a damping device with power-assisted deceleration, which is intended to be used in the field of hydraulic shock dampers. The invention includes a sealed body filled with a hydraulic fluid and a piston mounted in the sealed body. The piston is connected to a rod axially movable outside the body. The rod and the body are arranged such that, while one is solidly connected to a support, an impact in relation to the other causes axial movement of the piston and compression of the fluid in a chamber. The invention also includes a flow mechanism for the hydraulic fluid to be released from the chamber and an element which can move axially inside the body to form a check valve that can seal the flow mechanism when pushed back in the opposite direction to that of the impact by an elastic device.

Abstract: The present invention provides a device for controlling the movement of a vehicle closure element, the device comprising, interposed between a vehicle structure and a closure element, firstly a driver element that can be activated on command, constituted by a pyrotechnic actuator, and secondly mechanical connection means suitable for allowing a driving connection between the pyrotechnic actuator and the closure element when the pyrotechnic actuator is activated, while also allowing the closure element to move freely relative to the pyrotechnic actuator when the closure element is moved over a stroke greater than that enabling said driving connection.

Abstract: The invention concerns a device forming a mechanism, in particular for use in the space industry, characterised in that it comprises in combination: two structural elements (100, 200) capable of relative displacement, locking means (300) adapted to prevent initially the relative displacement between the two structural elements (100, 200), and means (400) for controlled locking of the locking means (300) designed to prevent initially the release thereof, then when activated, successively, in a first phase, a sliding action in controlled amplitude of the locking means (300), for limited release between the two structural elements (100, 200), then in a second phase, complete release of the locking means (300) and hence of the structural elements (100, 200).

Abstract: The present invention relates to a thermally-controlled actuator device of the type comprising a body, a part held stationary relative to the body by a low-melting point connection material, e.g. brazing or equivalent means, and a mass of exothermic material suitable for acting on command to give off intense heat energy suitable for melting the connection material so as to release the part relative to the body, wherein the exothermic material is housed in a chamber that is subdivided into a plurality of compartments suitable for confining said material in close thermal contact with the wall of the chamber.

Abstract: The present invention provides a device for controlling the movement of a vehicle closure element, the device comprising, interposed between a vehicle structure and a closure element, firstly a driver element that can be activated on command, constituted by a pyrotechnic actuator, and secondly mechanical connection means suitable for allowing a driving connection between the pyrotechnic actuator and the closure element when the pyrotechnic actuator is activated, while also allowing the closure element to move freely relative to the pyrotechnic actuator when the closure element is moved over a stroke greater than that enabling said driving connection.

Abstract: A device is presented including a first support element, a second support element (110) which is separate from the first support element, a structure placed in tension between the two support elements and a rupture device associated with the structure in tension so as to rupture the structure in tension on demand. The device additionally includes a beam working in compression, inserted between the two support elements in parallel with the structure to be ruptured.

Abstract: The invention concerns an igniter plug for a pyrotechnic device, in particular a hand-launch or mechanical launch grenade, comprising a body (104) provided with a control mechanism including a fly-off lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnic module (105) for initiating the charge (119) of the associated device. The invention is characterised in that it further comprises a lock (150) engaged with the lever (101), in storage position, to prevent the fly-off lever (101) from moving towards its release position, the lock (150) being configured to impose, when the igniter plug is activated, an initial movement of the lever (101) countering its displacement required for releasing the percussion mechanism (128), so as to disengage the lock (150) and the fly-off lever (101).

Abstract: The invention concerns a device forming a mechanism, in particular for use in the space sector, characterised in that it comprises in combination: a material (300) with low melting point capable of producing a soldering joint, at least heating means (400), a structure having an architecture with a zone blocked by the low melting point material (300), capable of being released by liquefying the low melting point material, and means for forced rolling of the low melting point metal (300) in liquid state, after the heating means (400) have been activated, to produce a shock absorbing function.

Abstract: The invention concerns a device forming a mechanism, in particular for use in the space industry, characterised in that it comprises in combination: two structural elements (100, 200) capable of relative displacement, locking means (300) adapted to prevent initially the relative displacement between the two structural elements (100, 200), and means (400) for controlled locking of the locking means (300) designed to prevent initially the release thereof, then when activated, successively, in a first phase, a sliding action in controlled amplitude of the locking means (300), for limited release between the two structural elements (100, 200), then in a second phase, complete release of the locking means (300) and hence of the structural elements (100, 200).

Abstract: The present invention provides a device forming a controlled-release mechanism, the device comprising: two structural elements suitable for relative movement; and locking means suitable initially for preventing relative movement between the two structural elements, and in which the locking means comprises in combination: at least one set of complementary shape means of helical configuration associated with respective ones of the two structural elements; and a low-melting point material disposed at least in part at an interface between two parts connected respectively to the two structural elements to prevent the locking means being released, and consequently to prevent the structural elements being released, prior to said material melting.

Abstract: The invention concerns an igniter plug for a pyrotechnic device, in particular a hand-launch or mechanical launch grenade, comprising a body (104) provided with a control mechanism including a fly-off lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnic module (105) for initiating the charge (119) of the associated device. The invention is characterised in that it further comprises a lock (150) engaged with the lever (101), in storage position, to prevent the fly-off lever (101) from moving towards its release position, the lock (150) being configured to impose, when the igniter plug is activated, an initial movement of the lever (101) countering its displacement required for releasing the percussion mechanism (128), so as to disengage the lock (150) and the fly-off lever (101).

Abstract: The present invention provides a device forming a controlled-release mechanism, the device comprising: two structural elements suitable for relative movement; and locking means suitable initially for preventing relative movement between the two structural elements, and in which the locking means comprises in combination: at least one set of complementary shape means of helical configuration associated with respective ones of the two structural elements; and a low-melting point material disposed at least in part at an interface between two parts connected respectively to the two structural elements to prevent the locking means being released, and consequently to prevent the structural elements being released, prior to said material melting.

Abstract: The present invention relates to a system for launching a charge or projectile (40), characterized in that it comprises:

Abstract: A mechanical device for controlling changeover between two modes of relative displacement between two objects comprising: two assemblies capable of moving in guided relative translation, one assembly being fixed, and the other assembly moving, the device further comprising: resilient controller interposed between the two assemblies with a controlled clearance to define the mode of relative displacement; and an inertial mass associated with one of the assemblies and adapted to act selectively on the controller as a function of the time profile of moving assembly displacement in order to modify the clearance and the mode of relative displacement.

Abstract: A mechanical device for controlling changeover between two modes of relative displacement between two objects comprising: two assemblies capable of moving in guided relative translation, one assembly being said to be fixed, and the other being said to be moving, the device further comprising: resilient control means interposed between the two assemblies with a controlled clearance to define the mode of relative displacement; and an inertial mass associated with one of the assemblies and adapted to act selectively on the control means as a function of the time profile of moving assembly displacement in order to modify the clearance and the mode of relative displacement.

Abstract: The present invention relates to a non-lethal projectile. The projectile (1) comprises a longitudinal body (5) having internally a longitudinal striker (55) suitable for perforating a container (47) of fluid under pressure in controlled manner, in particular by impact of the projectile (1) on a target. The striker (55) has an internal passage (59) opening to the outside of the body (5) via channels (60) made through a rigid wall (35) secured to the body (5) such that the outlet offered to the fluid under pressure remains disengaged even if the impact is accompanied by the deformation of the container (47). The fluid contained in the container (47) can thus escape and spread over the target even in such a case.

Abstract: A device for braking the fall of a load, the device having a flexible fabric structure with a central hub connected to at least two radial blades adapted to impart rotary motion to the structure, thereby generating lift, and suspension rigging connecting the flexible fabric structure to the load beneath it.