Abstract: A process to detect the entry of a target into a zone, such process wherein it has the following stages: an illuminating beam is projected in the direction of the target by at least one source, the beam reflected on the target after its projection by one or more sources is received by at least two detectors placed in proximity to the zone and whose fields of detection incorporate a common part, each detector being synchronized to at least one of the sources, each travel distance separating the source and each detector via the target is computed or else only one of these distances is computed and then associated with a target presence criterion supplied by another detector, a target detection signal is delivered when the distance or distances thus computed, as well as qany presence criterion or criteria supplied, allow a point located geometrically in the zone under surveillance to be defined.

Abstract: An exhaust gas distribution device for the engine of a vehicle, wherein said device incorporates means to control the evacuation of the gases towards a classical exhaust system or else towards a specific exhaust system, said specific exhaust system incorporating means to dilute and reduce the visible, sound and infrared signatures of said vehicle.

Abstract: A device to recuperate the energy produced during the recoiling of a weapon provided with a hydraulic fluid power circuit, wherein said device comprises an energy recuperating cylinder activated by the recoil of said weapon, a double-acting cylinder comprising two chambers separated by a piston, a first chamber of said cylinder being connected to said hydraulic power circuit of said weapon, said piston of said cylinder pushing said hydraulic fluid in said circuit into a storage accumulator when said weapon recoils. The energy recuperating cylinder comprises a second chamber connected to a recoil mechanism that ensures pressurising of said mechanism.

Abstract: The invention relates to a projectile firing device used on a platform and comprising at least two tubes integral with a base. This device is characterized in that the base is mounted able to swivel on a turret around a first, substantially horizontal axis, such swiveling controlled by first drive means, the turret being able itself to pivot with respect to the platform around a second substantially vertical axis and being controlled by second drive means, the horizontal swiveling being made on either side of a median position in which the tubes are oriented with their axes substantially vertical.

Abstract: The invention relates to a locking device for a deployable surface or fin of a projectile characterized in that it incorporates at least one flexible tongue, one end of which protrudes in the groove, a recess to the side of the groove enabling the tongue to bend in a first direction to enable the fin to enter the groove.

Abstract: The invention relates to a firing safety device for a pyrotechnic device which incorporates a barrier blocking a transmission channel connecting an igniter and a pyrotechnic charge wherein the barrier comprises at least two elements able to move with respect to one another by the action of motor means between a safety position in which they cooperate to block the transmission channel and an armed position in which they free at least partially one part of the transmission channel, each barrier element alone being unable to block the channel.

Abstract: The invention relates to a firing safety device for a pyrotechnic device, such device incorporating at least one barrier to block a transmission channel connecting an igniter and a pyrotechnic charge, wherein the barrier is made in the form of at least one micro-machined or micro-engraved element, applied to or made on at least one substrate board, the board being integrated on its edge such that it is substantially parallel to the transmission channel which thus opens out opposite the barrier at its thick part, the pyrotechnic charge and igniter thus lying on either side of the barrier and opposite the thickness of the barrier.

Abstract: A sub-caliber projectile incorporating a penetrator and a sabot formed of several segments, the penetrator and sabot incorporating profiles that cooperate with one another so as to ensure the axial drive of the penetrator by the sabot when the projectile is being fired, such projectile wherein there is axial play (J) between the profile on the sabot and that on the penetrator so as to enable a limited relative axial displacement of the sabot with respect to the penetrator, means being provided to ensure the radial locking of the sabot segments by the penetrator in the foremost position of the sabot with respect to the penetrator, this locking no longer being ensured in the rearmost position of the sabot with respect to the penetrator.

Abstract: A fastening device for a gun barrel with respect to the turret of a carrier vehicle of the type incorporating a cheek integral with an oscillating mass carrying the gun barrel and an articulated part fastened to said turret, wherein said articulated part is fastened to said turret by a pivoting link and in that said part incorporates means to join it to said cheek.

Abstract: A fastening device for a gun barrel with respect to the turret of a carrier vehicle of the type incorporating a cheek integral with an oscillating mass carrying the gun barrel and an articulated part fastened to said turret, wherein said articulated part is fastened to said turret by a pivoting link and in that said part incorporates means to join it to said cheek.

Abstract: An explosive shell comprising a fusible explosive load placed in a casing incorporating an opening, such shell comprising shimming means placed in the vicinity of the shell opening, such shimming means comprising a ring made of an elastic material placed between a front part of the shell casing and the explosive load, such ring being compressed by compression means, shell wherein the shimming ring incorporates a flange housed in a groove made in the casing of the shell.

Abstract: A deployment and orientation device for projectile control surfaces, the deployment being carried out by means of springs between a loading position in which the control surfaces are folded inside the projectile and held against the action of the spring means using blocking means, and a deployed position in which the control surfaces may be oriented with respect to the projectile, device wherein it incorporates motors ensuring firstly the deployment of the control surfaces and secondly their orientation, the blocking means for the control surfaces being single means ensuring the immobilization of all the control surface and enabling them to be released simultaneously, the blocking means being immobilized by first locking means released by the pivoting of the bodies of the motors.

Abstract: A system to lay a bridge between two banks, wherein said system firstly comprises a bridge carrying vehicle constituted by a remote-controlled self-propelled platform incorporating means to deploy and retract said bridge, said platform being unmanned and armor-free, and secondly a control post comprising means to communicate with said platform.

Abstract: The object of the invention is a method of control of an ammunition or submunition, and in particular of the control of initiation of fire and/or of control of a trajectory correction and/or of a direction of fire, from a target detection, wherein the method consists of the following steps: a field zone (2) is sweeped from the ammunition (6) or submunition using a laser beam (10), a potential target (1) located on the field is spotted using a passive surveillance means (4), when the means of passive surveillance (4) detects the laser beam (10) transmitted by the ammunition or submunition, the transmission of an order of confirmation is controlled and/or of at least one off-target data via the means of surveillance (4) and towards the ammunition or submunition. The object of the invention is also an attack system associating an ammunition and a designator and implementing such a method.

Abstract: The invention relates to a projectile firing device used on a platform and comprising at least two tubes integral with a base. This device is characterized in that the base is mounted able to swivel on a turret around a first, substantially horizontal axis, such swiveling controlled by first drive means, the turret being able itself to pivot with respect to the platform around a second substantially vertical axis and being controlled by second drive means, the horizontal swiveling being made on either side of a median position in which the tubes are oriented with their axes substantially vertical.

Abstract: A terminal guidance and/or steering process for a projectile towards a target, process in which the orientation of a velocity vector {right arrow over (Vp)} is determined then a guidance law is applied and finally a steering algorithm enabling the projectile to be reoriented towards its target, process wherein the three components of the terrestrial magnetic field {right arrow over (H)} are measured in a projectile-linked reference marker (OxmYmZm) and these measurements are used in the guidance law and/or steering algorithm as a fixed reference marker enabling the orientation at least partially of the projectile-linked reference marker with respect to the terrestrial reference marker (GXfYfZf).

Abstract: A sabot for a projectile comprising at least two segments intended to surround and drive a sub-caliber penetrator, such sabot comprising a calibered thrust plate, wherein said sabot incorporates a body made of a light material, said body having at least one longitudinal insert made of a material having high mechanical properties, said insert having indentations cooperating with an external profile of said penetrator to allow it to be driven, said indentations extending those of said sabot body and which thus also cooperate with the external profile of said penetrator.

Abstract: The invention relates to a defense system for a target against an attacking projectile of the type incorporating a launcher for defensive projectiles and control means for the device after the attacking projectile has been detected, wherein the launcher device comprises a cupola mobile in bearing with respect to the target and a launcher integral with the cupola and articulated in elevation in the bearing range of the cupola to ensure the compactness of the whole assembly with respect to the target.

Abstract: The invention relates to a device to prevent the formation of solid matter due to projections on an air outlet, for example that of an armored vehicle, located near to such projections. It comprises a shutter 1 incorporating at least two vibrating fins 3 fixed onto a support 2, said fins being of two different types mounted alternatively and vibrating differently. One vibrating fin 3a is connected to the support by a number N of fastenings and the other vibrating fin 3b by a number N+/?1 fastenings. The support 2 for the vibrating fins is constituted by an assembly of bars 2a, 2b that are substantially perpendicular to the fins 3. Abutments 5 are placed on the fins 3 or on the support 2.

Abstract: A device to separate propellant charge modules for field weapons, each module incorporating a top and bottom, the top of one of the modules being engaged in the bottom of an adjacent module, the device incorporating a reception device for all the modules having a device to immobilize each of the modules, the immobilizing device being linked by a linking and separating device enabling a relative translation to be controlled for each of the modules with respect to its neighbors, thereby ensuring the separation of the modules.