An initiator assembly that includes an end plate, a plurality of terminals, a plurality of epoxy plugs, an insulator layer and an exploding foil initiator. The end plate is formed of aluminum and has a plurality of first terminal apertures formed there through. Each of the terminals is received through a corresponding one of the first terminal aperture. Each epoxy plug is received in an associated one of the first terminal apertures and is sealingly engaged to the end plate and to an associated one of the terminals. The insulator layer is received over the end plate. The exploding foil initiator is abutted against the insulator layer and has a bridge and a pair of initiator contacts. Each of the initiator contacts is electrically coupled to a corresponding one of the terminals.

A circuit for controlling the firing of an exploding-foil pyrotechnic component including at least one capacitor and switch means, the capacitor being connected to the pyrotechnic component by an array of at least three diodes connected in series and in a direction that prevents the capacitor from discharging, the sum of the reverse voltages of these diodes being greater than the maximum voltage that can be delivered by the capacitor, the switch means including at least two field-effect transistors associated with the array of diodes.

A circuit for controlling the firing of an exploding-foil pyrotechnic component including at least one capacitor and switch means, the capacitor being connected to the pyrotechnic component by an array of at least three diodes connected in series and in a direction that prevents the capacitor from discharging, the sum of the reverse voltages of these diodes being greater than the maximum voltage that can be delivered by the capacitor, the switch means including at least two field-effect transistors associated with the array of diodes.

Methods, systems, and devices for an area-denial munition configured for self-neutralization of an explosive ordnance. In one or more embodiments the munition including a housing including a chassis defining one or more openings such that the housing is an at least partially open structure exposing an interior to an ambient environment. In various embodiments the munition includes a detonation module including a detonation initiator and a deflagration module including a deflagration initiator coupled with a pyrotechnic primer, and munition control circuitry. In various embodiments the munition control circuitry receives instructions to deflagrate the explosive ordnance and instructs the deflagration module to activate the deflagration initiator. In various embodiments, the deflagration initiator causes a deflagration of the explosive ordnance for self-neutralization of the munition resulting in safe destruction of the munition's explosive charge and control electronics.

An initiator assembly that includes a housing, a base, an exploding foil initiator and an input charge assembly. The housing defines a cavity. The base coupled to the housing and closes the cavity. The exploding foil initiator is mounted to the base and has a barrel that defines an initiation axis. The input charge assembly is received in the cavity and includes a holder and an input charge. The holder has a first axial end and a second axial end that are spaced apart along the initiation axis. The first axial end is closer to an output of the barrel than the second axial end. A charge aperture is formed through the first axial end of the holder and does not extend through the second axial end of the holder. The input charge is formed of an explosive material and is received into the charge aperture.

The invention proposes the design of a pyrotechnic initiator applied in the aerospace field, including three main components: the housing, the burning bridge and the pyrotechnic dose. The housing has a protective effect and increases the power of the pyrotechnic dose, in which the number of threads and the thread length are calculated to ensure to withstand the fire pressure. The burning bridge generates heat to ignite the ignition dose, the diameter of the bridge is calculated to ensure the resistance of the burning bridge. The pyrotechnic dose consists of 3 ingredient doses, which are the ignition dose, the intermediate dose, and the fire-boosting dose. In which, the mass, composition and density of the doses are calculated to ensure that the required working pressure is created.

An igniter for propulsion unit including a receptacle having at least one opening through which passes a conducting line connected to an ignition carrier of a slapper contained within the receptacle, the igniter being characterized in that at least one elastomer material is disposed between the ignition carrier and the opening such that the pressure of the gases generated by the propulsion unit which is ignited pushes the elastomer material at the vicinity of the opening of the receptacle so that this elastomer material blocks the opening and avoids any gas leak through this opening.

A chip slapper is presented, having a substrate, a conductive layer disposed above the substrate face, and an intermediate layer disposed between the substrate face and the conductive layer. The conductive layer and intermediate layer form a first land and a second land atop the substrate face, with a bridge formed of the intermediate layer spanning between the first land and the second land. A first adhesion portion is attached to the first land, and a second adhesion portion is attached to the second land, wherein at least a portion of the bridge is not overlaid by the first adhesion portion or the second adhesion portion.

A pyrotechnical igniter (100) for an inflator of a vehicle safety system comprises at least two contact pins (102) physically separated from each other by an electrically insulating compound and a bridge wire (110) connected to both contact pins (102) in an electrically conducting manner. A fastening portion (112) in which the bridge wire (110) is welded to the contact pins (102) is provided at each of the contact pins (102).

Lead free microdet electric detonators comprising a bridgewire having milled DBX-1 as a spot charge and unmilled DBX-1 as the intermediate material. Such improved microdet electric detonator is free of lead azide and lead styphnate, but with comparable stability, power and sensitivity to current lead-based M100 electric detonators.