Abstract:
The contactor for firing a pyrotechnique charge comprises a support base (6) made of an insulating material and having at least two conducting terminals (7 and 8), a contact sleeve (13) centered coaxially on the base and in contact with one of the terminals, having pins which can be centrifugally displaced by elastic element (22), a deformable, conductive case (24) in contact with the second terminal, and a conductive slide-bar (28) which can move under inertia on the axis of symmetry against the effect of a retaining spring (31). Application as impact contactor for projectiles.
Abstract:
The field of the invention concerns initiation devices for a pyrotechnic system. The initiation device (7) according to the invention is characterized in that it comprises a primer-holder system (12) arranged inside a casing (10), said primer-holder system is susceptible of passing from a safety position to an armed position through the action of motor means (22) and is immobilized in its safety position by at least one first lock (17a) which is released by a shape memory actuator when the environmental temperature exceeds a given value. Application to the deconfinement of ammunition in storage aeras.
Abstract:
The invention concerns a method for manufacturing a device for dissipating thermal energy produced by electric components (A, B, C) embedded in a printed circuit card (1), consisting in depositing on the card (1) a first level (10) of a first material thermally conductive and electrically insulating for covering at least the connection pins (4) of the electronic components (A, B, C) to be cooled, and in putting this first film (10) in contact with a metal drain (12) connected to a thermal mass for draining the calories outwards. The invention is characterised in that the method consists in producing the drain (12) in the form of a flexible and porous metal structure, and in depositing on the drain (12) a second level of a second material which adheres to the first level (10) through the pores of the drain (12) for maintaining it on the card (1).
Abstract:
An anti-fragmentation covering for an armoured vehicle or any other construction. The covering particularly comprises an adhesive layer (2) made of a thick organic material and placed on the vehicle wall (1), and is characterised in that it includes an adjacent layer (3) 5-30 mm thick made of a composite material with an organic matrix and an organic or inorganic reinforcement, and arranged in the immediate vicinity of the adhesive layer (2), said layer (2) consisting of a 15 mm thick polyethylene sublayer (2a) and a 10 mm thick organic-matrix composite sublayer (2b), a 5-10 mm thick dispersion area filled with polyurethane foam, an adjacent 35 mm thick glass fibre-reinforced organic-matrix composite layer (3), and a 5 mm thick absorbent layer (4) made of biaxially stretched polyethylene.
Abstract:
A coin deposit lock for trolleys. The lock is operated by means of a key (6) insertable into a first aperture (7) and a coin (5) insertable into a second aperture (8) opposite the first, said key (6) being released from the lock by the coin (5) and vice versa. The lock includes first members (36, 37) for locking the key (6) and releasing the coin (5), and second members (38, 39) for locking the coin (5) and releasing the key (6). Said first and second locking members consist of opposed jaws (32, 33) each defining a hook (36, 37) for engaging the key (6) on one side, and a recess for the coin (5) on the other side.
Abstract:
A system for supplying a device, such as the combustion chamber (5) of the barrel (1) of weapon using a liquid propellant, including a hydraulic cylinder consisting of a piston (15) and a cylinder (9) defining therewith a variable-volume chamber (16) connected to the combustion chamber (5) via an outlet channel (21), and a cushioning assembly (40) consisting of a projection (41) extending into the chamber (16), and a recess (42) formed in the piston (15) for cushioning said piston (15) at the end of its stroke by throttling the hydraulic fluid. An assembly (45) is provided for adjusting the length of the projection (41) within the chamber (16) according to its volume.
Abstract:
The structure (1) is designed to be loaded onto a vehicle provided with a handling mechanism which includes a hydraulic lifting arm (14), and comprises two lower longitudinal rails (7A, 7B) for engaging guiding rollers (12) located at the back of the vehicle, and devices for moving said rails (7A, 7B) between an extended position in which they engage said guiding rollers (12) and a retracted position in which they are located in a housing in the bottom of said structure (1).
Abstract:
A method for depositing a protective coating consisting of a polymerisable material such as a resin on the components of an electronic board, wherein the coating material is prepared from a starting mixture of at least two materials (A, B) and a variable amount of a third material (C) is added to the starting mixture in order to vary the viscosity thereof according to the type of component to be protected during the process of coating the components (P1, P2, P3) of the electronic board (CE).
Abstract:
A system for laying a weapon (3) mounted on an armoured vehicle, the elevation and training of said weapon being adjustable in two perpendicular directions. The elevation adjustment axis (Y'-O-Y) lies in a substantially horizontal plane when the armoured vehicle is on substantially horizontal ground, whereas the training adjustment axis (Z'-O-Z) is perpendicular both to the elevation adjustment axis (Y'-O-Y) and to the weapon axis.
Abstract:
A stabiliser device for a personal firearm, including isolating means (12) for isolating the barrel from the user, articulated connecting means (14) arranged between the barrel (5) and the isolating means (12) to enable the barrel (5) to pivot relative to the isolating means (12), and control means (15) for controlling the pivoting motion of the barrel (5) to compensate for the involuntary movement imparted to the firearm by the user while taking aim, whereby the barrel (5) remains pointed in the direction in which the user is aiming.