Abstract: The invention relates to an electromechanical primer cap, having an explosive mixture for the selective electrical or mechanical initiation of the explosive mixture, having an outer metal cup, and electrically conductive pole piece, a firing bridge support body made of an electrically insulating material, with a through-bore, on the upper side of which a firing bridge is arranged, and having a counter surface placed onto the explosive mixture, wherein a hole through which the pole piece protrudes is constructed in the vase of the metal cup. A portion of the explosive mixture lies on a contact surface of the pole piece, and the counter surface protrudes as far as the through-bore of the firing bridge support body, or into or through the bore, and continues to just above the contact surface.

Abstract: Technologies for analyzing and deactivating an explosive device include electrically connecting an analysis device to a pair of trigger wires of the explosive device, performing a number of electrical measurements, and determining a deactivation action to be performed on the explosive device based on the electrical measurements (e.g., based on the calculated resistance between the trigger wires). In a disclosed embodiment, a primary lead of the analysis device is electrically coupled to a first trigger wire of the explosive device and a pair of secondary leads are each electrically coupled to a second trigger wire of the explosive device. The analysis device measures a voltage between the primary lead and at least one of the secondary leads. The analysis device also measures a current flowing through the secondary leads after a link of trigger wire extending between the leads has been cut or broken.

Abstract: A system for a piston actuator comprising a configuration with lead styphnate charge material and Nichrome® bridgewire, wherein the device configuration provides very high reliability, including piston actuator applications; resistance of the bridgewire is carefully controlled to optimize power transfer from the firing circuit to the bridgewire and charge material.

Abstract: There is provided an impact resistance self-destruct fuse installed in a shell and functioning to ignite explosion of the unexploded shell occurred in the case that a shell falls on the inclined ground or barriers but fails to be exploded by a mechanical fuse, by the configuration including a fuse slide having grooves formed on the top and the bottom at one side of the fuse slide so as to be easily breakable by absorbing the impact occurred when the shell falls and bounces, a battery displaced inside the portion of the fuse slide which is separated off by the grooves, and a battery hit needle located along the line where the battery is located in order to hit the battery, and a detonator exploded by the electric energy from the battery or exploding the impact resistance self-destruct fuse by sensing the short of the battery in circuits.

Abstract: Methods and apparatus according to various aspects of the present invention comprise a propelling system for propelling projectiles with variable velocity. In one embodiment, a cartridge comprises a cartridge case, the propelling system, and the projectile attached to the cartridge case.

Abstract: The invention relates to a microsystem and a method for fabricating a microsystem. The pyrotechnic microsystem (7, 1?) comprises a substrate having at least two separate electrical initiation zones, each of which provides separate electrical initiation of a pyrotechnic material deposited on the substrate. This microsystem (7, 1?) is characterized in that the same pyrotechnic material deposit (721, 721?, 13) covers both initiation zones, said deposit (721, 721?, 13) produced on the substrate having a thickness sufficiently small for the initiation of the pyrotechnic material in the initiation zone to remain localized and not propagate to the other initiation zone, but sufficient to generate a specific gas quantity.

Abstract: A charge system for destroying chips on a circuit board is provided. The charge system has a first substrate having a number of recesses formed therein with each of the recesses having a housing disposed therein. A high density charge is disposed within the housing. A number of recesses are formed within the high density charge. A number of low density charges are disposed within each of the recesses formed within the high density charge. A second substrate is located proximate to the first substrate. The low density charge and the high density charge are structured to destroy the second substrate after ignition. A method of destroying chips is also provided.

Abstract: A shock tube initiator (STI) for allowing the remote and/or manual initiation of at least one shock tube, typically two shock tubes is disclosed.

Abstract: A tail fuze (10) is described having an electrical detonator (12), a fuze needle (14) which is associated with the electrical detonator, a piercing fuze (16) which can be moved into line with the fuze needle (14) and is intended for a fuze booster (28), wherein the fuze needle (14) has a mass body (32) on which a restraint spring (34) is provided. If the electrical firing fails, then the piercing fuze (16) is fired on striking the ground by the fuze needle (14) as a result of the inertia of the mass body (32).

Abstract: Exothermic reaction mixtures are electrically ignited with a low cost foil strip of two conductive strips separated by a layer of insulation. One or more holes are formed in the ignitor to create shaped spark plasma on one side and a venting plasma on the opposite side of the hole. The spark with low energy requirements is sufficient to ignite exothermic reactions for welding, casting and other uses. The ignitor may be part of reusable crucibles and molds, or expendable packages, containers, and molds, or smaller squibs for igniting larger charges. The ignitor may be immersed in or substantially adjacent the charge of exothermic material. The spark forming hole or holes is made and shaped by a punch in a simple and low cost manner. The ignitor eliminates the need for starting powders or materials and flint gun ignitors.

Abstract: A propellant charge arrangement for barrel-weapons or ballistic drives comprises a conventional core charge having an ignition system and a consolidated propellant surrounding the core charge and having its own high electrical energy ignition system which can be controlled in a time-delayed manner after triggering the core charge ignition system. The structure and arrangement of the consolidated propellant and its ignition system are chosen such that, during combustion of the core charge, the consolidated propellant disintegrates into fragments of essentially uniform geometry in response to triggering of its associated ignition system, wherein the fragments are accelerated into the gas volume generated during combustion of the core charge.

Abstract: An integrated circuit configuration, in particular for igniting a restraint device of a motor vehicle, has a capacitor and an ignition element. In this case, a porous region of a semiconductor layer forms a capacitor electrode, which is isolated from a further semiconductor layer by a dielectric layer. The further semiconductor layer being configured as a further capacitor electrode. The further semiconductor layer has a region that is tapered in its cross-section and serves as an ignition element electrically connected to the capacitor.

Abstract: An EFI (exploding foil initiator) or slapper detonator, including a explodable foil (or bridge), a flyer plate and a barrel plate having a movable barrier to close a barrel in a safety mode and for opening the barrel in an arming mode, wherein the movable barrier slides from a closed (safety) position to an open (armed) position under the control of a MEMS (microelectromechanical system) energetic actuator. The slidable barrier is maintained in the closed position by one or more locking devices of the MEMS energetic actuator until predetermined stimuli are detected to cause the locking device(s) to release the slidable barrier, thereby arming the EFI or slapper detonator.