Abstract: A device for driving in rotation fins of a projectile, the fins being of the deployable type integral with fin heads which are able to be oriented along an axis of spin (X, Y) substantially orthogonal to a projectile's longitudinal axis (Z), wherein the fin heads are driven in rotation by motors and substantially ring sector-shaped sliders which slide in a circular groove.

Abstract: The invention relates to a thermal energy management device for a vehicle, namely a vehicle equipped with an electric generator associating and fuel cell and hydrogen reformer, comprising at least one primary circuit circulating a first heat-conducting fluid, such circuit enabling calories to be collected from a thermal source and transported to at least one thermal exchanger wherein said device comprises at least one thermal exchanger constituted by a sorption exchanger, enabling the thermal energy management of vehicles, and namely, armored vehicles.

Abstract: A method for setting a protective coating on the inner wall of a tube includes providing a cylindrical sleeve, then setting on the outer surface of the sleeve a layer of a thermo fusible material, then machining the sleeve to provide it with an external diameter corresponding to the tube internal diameter, positioning the sleeve in the tube, and finally soldering the sleeve on the tube by applying heat.

Abstract: A protection device for land vehicles against mines, wherein it incorporates a metallic plate positioned under the vehicle so as to normalize the magnetic field generated by the vehicle and/or by its elements and at least one loop positioned under the metallic plate and made of an electrically conductive material connected to an electrical supply so as to generate a magnetic field of a value substantially equal to the opposing sign of the magnetic field from the vehicle so as to render said vehicle undetectable by magnetic detection mines.

Abstract: A process to produce alternately concave and convex grooves that are evenly spaced inside a tube, wherein the process includes the steps of at least one simultaneous broaching stage for all the grooves of the tube using at least one roughing tool and/or at least one finishing tool, the tools made integral with a handle bar using a link, the different roughing tools being implemented successively and having a convex profile that gradually approaches the concave profile of the grooves, and at least one finishing tool having a concave profile to make the convex profile of the grooves.

Abstract: Sealing band for a projectile, the band being characterized in that it comprises a front sub-band containing at least two sectors, the sub-band having at least a conical profile in a tight fit with the matching profile of a groove of the projectile, the cone tip being placed towards a rear section of the projectile, with the sub-band attached to the projectile by a cylindrical skirt.

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: 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: A protection device for land vehicles against mines, wherein it incorporates a metallic plate positioned under the vehicle so as to normalize the magnetic field generated by the vehicle and/or by its elements and at least one loop positioned under the metallic plate and made of an electrically conductive material connected to an electrical supply so as to generate a magnetic field of a value substantially equal to the opposing sign of the magnetic field from the vehicle so as to render said vehicle undetectable by magnetic detection mines.

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: The invention relates to an ignition device for an explosive charge or pyrotechnic composition. This device comprises at least two ignition means connected to a power source. It is characterized in that it comprises a single insulating support carrying the ignition means as well as the conductors ensuring their connection to the power source.

Abstract: A weapon system incorporating a cannon mounted in a cradle and intended to be carried on a vehicle wherein the cradle is integral with a plate able to be positioned on the ground by the vehicle using a maneuvering arm, the cannon being able to fire from the plate positioned on the ground.

Abstract: A device to protect the floor pan of a land vehicle against mines, which device incorporates at least one layer of deformable reinforcements positioned between a plane front plate and a plane rear plate, the surface density of the front plate being greater than that of the reinforcements.

Abstract: The invention relates to an ignition device for an explosive charge or pyrotechnic composition. This device comprises at least two ignition means connected to a power source. It is characterized in that it comprises a single insulating support carrying the ignition means as well as the conductors ensuring their connection to the power source.

Abstract: The invention relates to a weapon system incorporating a cannon mounted on a cradle integral with a vehicle, characterized in that the cradle is integral with a base fastened at the rear part of the vehicle, base on which at least two arms are hinged each carrying a spade at their ends, each arm able to be locked into its extended position and also incorporating a safety support intended to press on the ground between the spade and the base.

Abstract: A deconfinement device for the casing of a piece of ammunition enclosing an explosive load able to be ignited by a priming fuse, device including at least one vent enabling the explosive load to communicate with the free air, device where the vent opens into a chamber located between the fuse and the explosive load.

Abstract: The invention relates to a weapon system incorporating a cannon mounted on a cradle integral with a vehicle, characterized in that the cradle is integral with a base fastened at the rear part of the vehicle, base on which at least two arms are hinged each carrying a spade at their ends, each arm able to be locked into its extended position and also incorporating a safety support intended to press on the ground between the spade and the base.

Abstract: A container for ammunition of the type comprising a case inside which an inner casing receiving the ammunition is able to slide between two axial positions, one in which it blocks the ammunition and the other in which it unblocks the ammunition, the inner casing incorporating a front sleeve having flexible fingers, such sleeve cooperating in its blocking position with a fixed limit stop integral with the case and ensuring the retention of the fingers on a zone of the projectile to limit its translation, such container wherein it incorporates means ensuring the radial spacing of the flexible fingers at a distance from the projectile in the unblocking position of the inner casing.

Abstract: A container for ammunition of the type comprising a case inside which an inner casing receiving the ammunition is able to slide between two axial positions, one in which it blocks the ammunition and the other in which it unblocks the ammunition, the inner casing incorporating a front sleeve having flexible fingers, such sleeve cooperating in its blocking position with a fixed limit stop integral with the case and ensuring the retention of the fingers on a zone of the projectile to limit its translation, such container wherein it incorporates means ensuring the radial spacing of the flexible fingers at a distance from the projectile in the unblocking position of the inner casing.

Abstract: A muzzle brake for a gun having a substantially cylindrical body intended to be positioned in the extension of a gun barrel. The body has two stages of propellant gas reception vanes and is perforated by vents directing propellant gas towards the vanes. The brake has one deflector to deflect the flow of gas and is positioned between the vents of the second stage of the vanes and a front profile of the first stage of the vanes.