Abstract: A MEMS mechanical initiator having a striker arm extending from a striker body. The tip of the striker arm is adjacent to, but does not touch, the side of a microdetonator. A cocking and release mechanism moves the striker body such that the striker arm pulls away from the side of the microdetonator against the action of a set of springs connected to the striker body. Thereafter the cocking and release mechanism releases the striker body such that the tip of the striker arm swipes the side of the microdetonator causing initiation thereof.

Abstract: The present invention relates to priming device for the explosive charge of a sub-munition scattered by a carrier, of the type incorporating a firing pin onto which a deployable drag ribbon has been attached, a primer able to be driven by a motor organ and a detonating primer to ignite the explosive charge. This device also comprises self-destruction means for the sub-munition operating after a predetermined delay, such means being activated by the extraction of a self-destruction lock. It is characterized in that the self-destruction lock is integral with the drag ribbon and is therefore extracted by the ribbon during its deployment.

Abstract: An igniter system for a flare that includes a housing, a slider assembly, and a piston assembly. The housing includes two ignition portals for holding ignition pellets. The slider assembly is disposed within the housing, and includes two sliders and a spring. Each slider corresponds to an ignition portal, and the two sliders communicate with the spring. The slider assembly has an armed position and a safe position, the armed position with the sliders uncovering the ignition portals and allowing conflagrant communication between the ignition pellets and flare grain, while the safe position with the sliders covering the ignition portal and not allowing conflagrant communication between the ignition pellets and flare grain. The piston assembly communicates with the housing. The piston assembly, when activated, can cause the slider assembly to be in the armed position.

Abstract: A portable explosives disrupter for de-arming improvised explosive devices includes a barrel for housing a projectile, a mechanism for firing the projectile from the barrel, a breech which may be adapted to house a variety of firing mechanisms, a semi-rigid, flexible support system for orienting the device in relation to a target and minimizing the effects of recoil on the accuracy of the device, and a means for accurately aiming the explosives disrupter at a target. Three different firing mechanisms are provided, the first employing a firing pin and shock tubing, the second employing a metal sphere and shock tubing, and the third employing a firing piston and a source of compressed air.

Abstract: A projectile includes a stabilizing band mounted on a rear projectile portion and having a folded state and a deployed state and a fuze assembly accommodated in the projectile. The fuze assembly includes a firing pin carrier supported for motion parallel to the longitudinal axis of the projectile; a firing pin secured to the firing pin carrier; a slide supported for motion transversely to the projectile axis and having a safety position and a firing position; and a detonator mounted on the slide. The detonator is out of alignment with the firing pin in the safety position of the slide and is in alignment with the firing pin in the firing position of the slide. A force-transmitting component is attached to the stabilizing band and the slide for moving the slide from the safety position into the firing position by a force generated by a motion of the stabilizing band from its folded state into its deployed state.

Abstract: A fuze for a bomblet including a slider in which there is arranged a detonator triggered in response to an impact or percussion, and which undergoes a transition during the free flight of the bomblet from a safe or secured position into an armed position. Arranged in the slider is a hydraulic or penumatic cylinder-piston retarding device and a spring-biased self-destruct pin which is operatively coupled to the device, which has a self-destruct detonator associated therewith, wherein the retarding device is blocked until the slider is generally located in the armed position thereof, and in which the retarding device, in the armed position of the slider, will brake the movement of the self-destruct pin during a self-destruct time period and thereafter will cause the releast of the latter.

Abstract: A fuse for an explosive shell comprises a body having a longitudinal axis, a hood unit fitting over the body and movable along the body vertical axis between a first position and a second position, and a parachute linked to the hood unit for pulling the hood unit from its first position to its second position when the explosive shell is released. A slide catch is housed in the body and is moveable in a direction perpendicular to the body perpendicular axis from an unprimed to a primed position. A primary detonator is housed in the slide catch. The primary detonator is out of alignment with the main charge of the explosive shell when the slide catch is in its unprimed position, and is in alignment with the main charge of the explosive shell when the slide catch is in its primed position. A safety catch holds the slide catch in its unprimed position until it is released by inertial forces acting on the fuze. A firing pin detonates the primary detonator.

Abstract: A firing mechanism for projectiles comprises a housing (42) having a bore (50) in which a firing pin (54) is slidably mounted under the influence of a spring (70). Leaf springs (72) formed in the housing wall hold the firing pin in a safety position until released by movement of a slider (82) caused by aerodynamic drag forces acting on deployable fins (96) or a parachute (92).

Abstract: A random time delay fuze includes a fuze base member containing a cylindrl cup guide carrying a slidably mounted cylindrical cup. The cup contains a piston which has a recess slidably mounted on a cylindrical firing pin guide which is also attached to said fuze base and contains a spring biased firing pin. The cup has a ribbon stabilizer, which when exposed to an airstream pulls the cup forward a limited distance, thereby forming a space within the cup between the piston and the cup. The piston is provided with a "floating" O-ring seal, which allows air to flow into but not out of said space, and an air restrictor, which restricts the flow of air out of said space. A biasing spring forces the piston forward in said space, causing air to be vented through the restrictor and thereby retarding the forward movement of the piston. When the piston has moved forward sufficiently, it permits locking balls to release the firing pin.

Abstract: A delay function modulator for insertion between the primary fuze and the warhead of a projectile, which relies on the time required for the movement of the plunger through a certain distance, then on the further movement of an internal firing pin under the influence of inertial force.

Abstract: A sound signal body, for generating underwater sound signals, that includes an explosive body which can be thrown out or released by hand. Within the explosive body is arranged an explosive charge as well as a hand grenade detonator having a pyrotechnical delayed detonator composition. The detonator is explodable at the head of the explosive body by a hammer. The sound signal body is provided with a hydraulic pressure switch which comprises a pressure chamber, at least one inlet which empties into the pressure chamber, and a membrane or diaphragm. The diaphragm is connected with a release bolt, which, through the diaphragm and dependent upon the pressure of the water flowing into the pressure chamber, is movable out of a safety position into an armed position.