Abstract: The single-use valve to be installed on a line for transporting a fluid includes a tubular body, which is intended to be placed on the line and contains a mobile element that is able to take up two positions in the tubular body. Each position allows the fluid to pass through the tubular body or not, one being a standby position, while the other is an active position. Inside the tubular body, a driver able to move the mobile element such that the mobile element passes from its standby position to the active position. The driver includes a pretensioned elastic device. Outside the tubular body, a device for maintaining the pretension connects to a controller able to deactivate the device for maintaining the tension.

Abstract: The single-use valve to be installed on a line for transporting a fluid includes a tubular body, which is intended to be placed on the line and contains a mobile element that is able to take up two positions in the tubular body. Each position allows the fluid to pass through the tubular body or not, one being a standby position, while the other is an active position. Inside the tubular body, a driver able to move the mobile element such that the mobile element passes from its standby position to the active position. The driver includes a pretensioned elastic device. Outside the tubular body, a device for maintaining the pretension connects to a controller able to deactivate the device for maintaining the tension.

Abstract: A device (1) for draining a tank of fluid under pressure pertaining to a space system includes a pyrotechnic actuator that is suitable to perforate a conduit (2) in fluid communication with the tank, the device including a collar (4) that is suitable to enclose the conduit, the collar bearing: a pyrotechnic cartridge (5) for perforation, oriented radially towards the conduit (2), and an anvil (11), diametrically opposed to the cartridge in relation to the conduit, that is suitable to collect debris generated by the perforation.

Abstract: A device (1) for draining a tank of fluid under pressure pertaining to a space system includes a pyrotechnic actuator that is suitable to perforate a conduit (2) in fluid communication with the tank, the device including a collar (4) that is suitable to enclose the conduit, the collar bearing: a pyrotechnic cartridge (5) for perforation, oriented radially towards the conduit (2), and an anvil (11), diametrically opposed to the cartridge in relation to the conduit, that is suitable to collect debris generated by the perforation.

Abstract: Weapons system comprising a fixed reference, a launcher tube slidingly mounted in relation to the fixed reference and a damper inserted between the fixed reference and the launcher tube. The weapon further comprises a lock serving as a stop for the damper in the launching position, so as to avoid displacement of the damper in the initial launching phase, and a sensor which reacts to projectile launching, capable of releasing the lock so as to rearwardly eject the unit formed by the damper and the launcher tube.

Abstract: The present invention relates to a pyrotechnical system comprising at least one flexible elongate pyrotechnical-function element and means suitable for deploying said elongate element in a chosen direction, wherein the system further comprises a support structure comprising an inflatable flexible container which receives the elongate element and which is provided with internal spacer fins suitable for supporting the elongate element, for being deployed simultaneously therewith, and for supporting the pyrotechnical-function element above the ground.

Abstract: A shoulder-borne weapon for use as a rocket launcher is disclosed. To enable its use in an enclosed space with any complication or excess weight, and without imposing any appreciable recoil effect on the gunner, for all that, at least one weapon tube is guided in limited longitudinal, sliding motion with respect to a barrel comprising shoulder rest means, grip means and firing control means, and means are provided to exert force elastically on the weapon tube, frontwards with respect to a pre-determined firing direction, so as to dampen the recoil motion of the weapon tube with respect to the barrel.

Abstract: A pressure plate for a mine comprises a hydraulic circuit. The mine is triggered by complete depression of the pressure plate. The hydraulic circuit comprises a pressure chamber containing a fluid that is compressed by a force applied to the pressure plate. The fluid is evacuated from the pressure chamber in a controled manner through a depressurization unit in response to a sustained force greater than a predetermined threshold being applied to the pressure plate. A bistable member moves between a first position in which it prevents communication between the pressure chamber and the depressurization unit and a second position in which it establishes communication between the pressure chamber and the depressurization unit. The bistable member is initially in the first position when no force is exerted on the pressure plate. It remains in the first position so long as the pressure plate is subjected to an increasing or stable force.