Abstract: According to some embodiments, a shaped charge inlay includes an upper edge that extends inward and horizontal to an edge of a shaped charge casing associated with a shaped charge. The shaped charge includes an existing liner and the shaped charge inlay further includes a body that extends inward toward an apex of the existing liner. The shaped charge inlay may be disposed above the existing liner in the shaped charge, to disrupt collapse of the existing liner upon detonation of the shaped charge and thereby change the geometry of a perforating jet and resulting perforation created by the shaped charge. The perforation holes formed by shaped charges having the shaped charge inlay may have geometries that include constant open areas to flow in the target when the perforating gun is centralized or decentralized in a wellbore casing.

Abstract: The invention relates to an electronic ignition unit for a stun grenade, comprising at least one energy source, at least one igniter, at least one control device, wherein the electronic ignition device further comprises an igniter driver connected to the at least one energy source and to the at least one control device.

Abstract: A hand grenade for launching BB bullets includes two half shells each including a spiral bullet storage and one half shell further including a discharge opening; a hollow, cylindrical base including a bottom recess, an air passage communicating with one bullet storage, and a valve at an end of the air passage; a steel ball on the recess to block the valve; a pressing assembly including a disc urging against the steel ball, a hollow cylinder extending upward from the disc, a magnet in the hollow cylinder, and a rod partially in the hollow cylinder to engage with the magnet; a hollow, cylindrical member threadedly secured to the cylindrical base; a cup-shaped cap threadedly secured to the cylindrical member and including two opposite projections on an inner surface and a bottom through hole with the rod passing through; and a switch including two opposite protrusions under the projections respectively.

Abstract: A fireworks kit can have a set of fireworks having multiple fireworks of different types and a plurality of detonators in communication with the fireworks that are configured to launch or detonate a firework attached thereto. A remote controller or mobile device can be in communication with the detonators and operable to provide dynamic or user customizable control of detonation, launching, or ignition of the fireworks.

Abstract: A payload container for providing a horizontal dispersion pattern of sub-projectiles suitable for combatting surface targets is in the form of a cylinder and includes at least two sub-projectiles arranged in a core enclosed by a container wall, wherein the sub-projectiles are linearly disposed. In addition, a projectile and use of the same include at least one payload container or a plurality of sequentially arranged payload containers displaced by a displacement angle relative to each other. The displacement angle is predetermined in such way so that the sub-projectiles are vertically lined at the time when the mechanical force from the carrier shell disappears and the sub-projectiles are spread to the left and to the right, providing a horizontal dispersion pattern.

Abstract: Provided is a frangible munitions device optimized for a dome and cylinder that yields fragments having shapes corresponding to a predetermined embossment pattern upon explosive rupture. The embossment pattern includes a first set of inner regular hexagonal embossments formed into the dome and cylinder that are aligned with the axis of the cylinder, and a second set of outer pre-deformed hexagonal shapes that distort to produce regular hexagonal shapes after drawing into the cylinder wall. The second set of shapes are separated by sharp transition regions. The shapes are embossed in a repeated pattern around the hollow cylinder and the dome top. The dome yields a plurality of fragments having shapes corresponding to the first set of inner regular hexagonal embossments upon explosive rupture, while the cylinder yields a plurality of fragments having shapes corresponding to the second set of outer pre-deformed hexagonal embossments upon explosive rupture.

Abstract: The present invention provides a subsonic ammunition including a polymeric casing body; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber; a propellant disposed and confined within the propellant chamber; a primer insert positioned at the body base and in communication with the propellant chamber; a primer and diffuser disposed in the primer insert in combustible communication with the propellant; and a projectile frictionally fitted in the mouth in combustible communication with the propellant.

Abstract: A radar-absorbing material projectile system including a projectile with an outer layer of radar-absorbing material (RAM). A carrier or armature is disposed around the projectile, protecting the layer of RAM during the firing sequence. In some embodiments the carrier is a discarding carrier which falls away after firing, rendering the projectile low-observable with regard to radar detection due to the layer of RAM.

Abstract: A detonation wire has a firing module connector at one end and a firework connection assembly at another end. The firework connection assembly has a connector housing having a plurality of sections at least partially surrounding and defining an ignition chamber. The firework connection assembly also has one or more firework igniters positioned at least partially within the ignition chamber. A firework igniter is operable to activate an ignition element of a respective firework placed into engagement therewith. Other examples also are described.

Abstract: An energy storage device including: a first movable member configured to be movable in one direction relative to a base; a first biasing member configured to bias the first movable member in a second direction opposed to the first direction; a plurality of second movable members, each movable towards an engagement surface of the first movable member when subjected to a predetermined acceleration event in a direction offset from the first direction; and wherein the engagement surface having a portion which when pressed causes a movement of the first movable member in the one direction against a biasing force of the first biasing member; and the plurality of second movable members are configured to sequentially engage the engagement surface upon an increasing acceleration of the base such that energy is stored in the first biasing member.

Abstract: An energy harvesting electronic primer (e-primer) system including smart ammunition with e-primer technology to enhance public safety from the discharge of a firearm by replacing conventional mechanical primers used for the activation of energetic materials with an electronic primer in center fire type ammunitions, grenades, bombs and other explosive devices wherein the ammunition includes an e-primer system having a firing pin, primer cup with a safety switch, antenna, piezo element, diode, capacitor, microcontroller, thermal wire, nanoenergetic and flash hole and radio transmitter circuitry wherein the mechanical force of the firing pin strikes a nanoenergetic material to activate the initial phase of an energetic train unless the e-primer is neutralized by a radio or acoustic signal captured by the antenna mounted within the ammunition where the radio signal includes a deactivation code to neutralize the ammunition. when located in a space specifically designed to receive the radio or acoustic signal.

Abstract: A modified bullet cartridge having a score line formed around a primer bore. The score line may be positioned symmetrically or asymmetrically about the primer bore. The score line may have a regular or irregular two-dimensional geometric shape. A modified bullet cartridge having a counter-bore formed superposed about a primer bore. The counter-bore may have a vertical counter-bore extension and/or a radial counter-bore extension. Adhesive is positioned in the counter-bore about a primer secured in the primer bore. The primer may have a radial flange extending radially from an exterior sidewall of the primer. The flange registers against a bottom surface of the counterbore, or within a radial flange extension if present. Adhesive is used to lock the primer flange against the counter-bore and/or radial counter-bore extension. The combination of the counter-bore, adhesive and optionally the flanged primer locks the primer to the bullet cartridge to render the cartridge unusable after one use.

Abstract: Shaped charge devices, systems, and related methods of use. A housing sheet is configurable to form at least part of a shaped charge enclosure enclosing a shaped charge and biasing an explosion in a desired direction. The housing sheet can include one or more incisions in at least one surface thereof. The housing sheet can have at least one connection mechanism integrally formed therein, and the housing sheet can be configurable to form a plurality of sizes of shaped charge housing portions. The housing sheet can also provide for forming a plurality of dimensions of the shaped charge enclosure.

Abstract: Multistage thermal trigger devices disclosed herein may include a first stage and a second stage, wherein the first stage activates at a first temperature, and wherein the second stage activates at a second temperature. The first stage activates an arming assembly so that the second stage is armed. The second stage may then activate the output of the multistage thermal trigger device, via the arming assembly, when the second temperature is reached. An autoignition material (AIM) capsule is also disclosed herein. The AIM capsule may be deployed in connection with the disclosed multistage thermal trigger devices.

Abstract: A cartridge incorporating a projectile assembly, the projectile assembly having a base, mid body component housing a marking powder and metallic nose cap. The projectile's mid-body component houses liquids in a cylindrical compartment, where set-back and rotation induce chemical mixing, and in flight allowing for a chemical reaction, and at impact the projectile undergoes wall failure in the mid body, resulting from shear and residual rotational momentum, the actions in combination releasing and expelling marking materials, the ejection suspended signature producing materials, including liquid, powdered metals or fine particles released into the atmosphere emit and reflect light, the signature materials producing an observable signature at the projectile's impact location.

Abstract: In order to improve safety, particularly during transportation and/or storage, a system (10) is proposed which at least comprises a housing (13) an explosive (3) held therein which is initiated by a blasting cap (1), wherein a sleeve insert (2, 2?) in the housing (13) makes it possible for the blasting cap (1) to be removed from the explosive (3), in that the blasting cap (1) in the sleeve insert (2, 2?) is height-adjustable, so that the position of the blasting cap (1) relative to the explosive (3) can be changed. The system (10) may include a fuse head (11) which at least comprises a primer cap and possibly a delay line (14). The blasting cap (1) may be an integral part of the fuse head (11) and insulated therewith on the base.

Abstract: A supercavitating cargo round comprises an energetic payload and an electronic payload. The electronic payload includes programmable circuitry suitable for implementing a digital delay of arbitrary length. The supercavitating cargo round is programmable while in a barrel or loader of a weapon.

Abstract: A bullet (100), having: a main body (102) with a bore (106) bounded by a sidewall (124); an insert (104) that is disposed in the bore and that has longitudinal splines (460) configured to form a longitudinal flute (4620 in the insert and to provide radial support for the sidewall of the bore. A leading end (466) of the flute is open.

Abstract: The present invention discloses a bullet with a negative Poisson's ratio effect and a method of designing thereof. The bullet includes a cylindrical section of the bullet having a negative Poisson's ratio design, and a conical tail of the bullet and a tip of the bullet each with a matching design; the cylindrical section of the bullet is a tubular structure having periodically alternating transverse and vertical holes; the tubular structure includes a plurality of holes, with a center axis of one hole being axially perpendicular to a center axis of another adjacent hole, that is, the axis of each hole being structurally orthogonal to an adjacent hole; and the holes in rows and columns are periodically arranged into the tubular structure, which is a tubular structure having the negative Poisson's ratio effect.

Abstract: An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.