Abstract: The present disclosure relates to an electronic detonation device for a blasting system. The electronic detonation device include: an electronic detonator; a wireless communication module; an electric wire connecting the electronic detonator to the wireless communication module; and a communication module support in which the electric wire is stored in a wound state, with the wireless communication module positioned on an upper surface of the communication module support. The communication module support is provided with a pile part configured to be driven into a ground for fixation, so that the electronic detonation device enables stable communication reliability to be secured by orienting the wireless communication module toward the sky, thereby preventing malfunction during blasting and improving blasting accuracy.

Abstract: A solid rocket motor includes a first solid propellant and a second solid propellant at least partially surrounding the first solid propellant. The second solid propellant is resistant to fragment impact and the first solid propellant has a higher impulse than the second solid propellant.

Abstract: Embodiments described herein include specialized barrel containers and methods for using the containers to safely transport and dispose of airbag inflators having ammonium-nitrate-based propellant. For example, a container is provided that can hold multiple airbag inflators and withstand up to 4 moles of matter being deployed from an inflator having ammonium-nitrate-based propellant. The container can contain the inflator and any shrapnel associated with the explosion while also venting gases expelled as a result of the explosion. Various container designs are provided, along with methods for using these containers.

Abstract: Embodiments described herein include systems and methods for safely transporting and disposing of airbag inflators. For example, a container is provided that can hold multiple airbag inflators and withstand inflator explosion resulting in failure of the metal inflator housing. The container can contain the inflator and any shrapnel associated with the explosion while also venting gases expelled as a result of the explosion. Various container designs are provided, along with methods for using these containers.

Abstract: Disclosed is a bullet and practice cartridge for use on a shooting range having a cylindrical rear part and an ogive region at the nose end. The ogive region has a rear end and a bullet tip. In order that the bullet behaves like a conventional full metal jacket round nose bullet in a soft target, and moreover has a low energy output in the soft target, that the bullet does not deform or splinter in soft materials, and that the bullet does not puncture protective materials of bullet catchers, the bullet is constructed in one piece, the ogive region is closed all round a cavity and the wall thickness of the ogive region decreases constantly from the rear end to the tip.

Abstract: Provided is a site vehicle for mixing and loading multiple kinds of explosives with different detonation velocities. The vehicle contains a double-helix conveying system, a plurality of storage bins (5-8) and multiple sets of pipelines. Emulsified bases, porous granular ammonium nitrate and physical density modifier are stored in the main material storage bins, an adjuvant storage bin is provided with a diesel tank (4, 31), a sensitizing solution tank (40) and a washing water tank (11), and the technical effect that multiple kinds of explosives with different detonation velocities are mixed and loaded can be realized by using the different combinations of the different raw materials of the storage bins and various output pipelines and some baffle plates.

Abstract: Apparatus, systems, devices, methods and computer program products are configured to package products using automated movement of components that fill, then clip bags in a manner that is particularly suitable for packaging blasting powder and/or explosives in shot bags.

Abstract: Pressed and segmented gas generant grain assemblies formed from a plurality of symmetric gas generant pieces or segments are disclosed. The symmetric pieces or segments are arranged circumferentially to define a substantially round, segmented body. In certain variations, the symmetric segments are substantially free of polymeric binder and have a high density. The segmented pressed grain assemblies are more robust and less expensive to manufacture, while still exhibiting desired combustion performance. Methods of making such segmented gas generant grain assemblies are also provided.

Abstract: A method of making a liner for a shaped charge or an explosively formed projectile may include making a liner substrate using a 3D additive manufacturing process. At least a portion of the surface of the liner substrate may be surface finished. The surface finished portion may be electroplated with a metal to form a multi-layer liner.

Abstract: Penetrators and methods of manufacturing penetrators are disclosed. One method of manufacturing a penetrator having arrowhead geometry and base geometry includes the steps: (a) cold heading a piece of material to form a blank; (b) machining the blank to create the arrowhead geometry; and (c) roll forming the blank to create the base geometry. Another method of manufacturing a penetrator having arrowhead geometry and base geometry includes the steps: (a) machining a piece of material to create the arrowhead geometry; and (b) roll forming the piece of material to create the base geometry. Yet another method of manufacturing a penetrator from a blank includes the steps: (a) machining the blank to create a first surface feature of the penetrator; and (b) roll forming the blank to create a second surface feature of the penetrator.

Abstract: The present invention provides an improved kinematic countermeasure flare and method of constructing the same wherein the housing has integrated internal features. The flare nose weight is set at the end of a die core prior to molding for integration with the housing. Longitudinal grooves and other recesses in the die core allow for the formation of internal longitudinal ribs which propellant can bond to and a retaining bead for retaining the nose weight in the housing which are integrated with the housing. Propellant is cast into the formed housing. A propellant shaping mandrel is then inserted into the formed housing thereby forcing the propellant into the internal cavity created by the integrally molded longitudinal ribs, the shaping mandrel and the wall of the flare housing such that the propellant is bonded to the interior housing wall and the longitudinal ribs.

Abstract: A flexible fragmentation sleeve for use with a non-fragmenting explosive device is provided. The flexible fragmentation sleeve comprises a flexible cylindrical wall extending between opposing first and second ends along a longitudinal axis. The cylindrical wall includes an inner liner and an outer liner concentric to the inner liner. A first set of coupling elements extend parallel to the longitudinal axis of the cylindrical wall, and couple the inner liner with the outer liner. A second set of coupling elements extend circumferentially along the cylindrical wall. The second set of coupling elements is substantially perpendicular to the first set of coupling elements, and couple the inner liner with the outer liner. A plurality of pockets is defined intermediate the inner liner and the outer liner, and intermediate the first set of coupling elements and the second set of coupling elements. The flexible fragmentation sleeve of the illustrative embodiment further includes a plurality of fragmentation members.

Abstract: Apparatus for storing and dispensing flowable explosive, the apparatus including an explosive pump for pumping flowable explosive into an explosive tank having a fluid pressure-actuated piston movable therein for expelling flowable explosive out of the explosive tank through a delivery hose fitted with an injector through which one or more additives from one or more additive tanks can he pumped by an additive pump.

Abstract: Apparatus, systems, devices, methods and computer program products are configured to package products using automated movement of components that fill, then clip bags in a manner that is particularly suitable for packaging blasting powder and/or explosives in shot bags.

Abstract: A marking paint ball includes a shell made of non-water-soluble polymer material and having a substantially spherical shape. A marking paint composition is contained in the shell. The shell is made of an oxo-biodegradable material. A method for making such a ball is disclosed.

Abstract: A cylindrical casing (18) has first and second ends (33 and 31), the first end (33) being closed. The casing (18) encloses an accelerant (22) disposed adjacent the first end (33), at least one stemming mechanism (21), and a fuse (14 or 14?) extending from the accelerant (22) out of the second end (31) of the cylindrical casing (18). The cartridge (12) is made of a rupturable cylindrical casing (18) with accelerant (22) and self-stemming mechanism (22) inserted therein. A method of breaking hard (R) materials involves detonating a self-stemming cartridge (12) disposed in a borehole (B).

Abstract: The invention concerns a portioning and packing device as well as a process for the production of explosives containing detonating devices. The portioning and packing device contains a conveyor for the explosive, which exhibits a pump for the generation of a volume flow; a filling pipe connected to the conveyor, which is set up to provide a reserve supply of a tubular packing sleeve. At the same time, the tubular packing sleeve can be pulled off the filling pipe with the explosive ejected through the filling pipe. A closing device located downstream of the filling pipe is set up to constrict the filled packing sleeve locally to a hose plait during the filling process and close around the hose plait with at least one means of closure. The filling pipe further exhibits a means of introduction, which is set up to introduce a detonating device into the explosive.

Abstract: Apparatus for storing and dispensing flowable explosive, the apparatus including an explosive pump for pumping flowable explosive into an explosive tank having a fluid pressure-actuated piston movable therein for expelling flowable explosive out of the explosive tank through a delivery hose fitted with an injector through which one or more additives from one or more additive tanks can be pumped by an additive pump.

Abstract: A method for producing a missile nose cone is disclosed. The method consists of manufacturing a first missile nose cone from a first lot of polymeric material and determining a first rupture value. The method further consists of manufacturing a second missile nose cone from a second lot of polymeric material and determining a second rupture value of the second missile nose cone. Both first and second lots of material are mixed into a test batch with one another based on their associated rupture values. An evaluation missile nose cone is then manufactured from the test batch and a determination is made as to whether the evaluation missile nose cone has a desired rupture value. If a desired rupture value is not obtained, then the mixing and evaluation steps are repeated.

Abstract: An energetic material initiation device having a receiver assembly and an initiator assembly that includes an electronic initiator and a pellet assembly with an energetic material. The receiver assembly is configured to be coupled to a firing circuit. When the firing circuit is to be armed, the initiator assembly can be pressed into a socket in the receiver assembly to electrically couple the receiver assembly and the initiator assembly. A method for mounting an energetic material initiation device to a firing circuit is also provided.

Abstract: A perforating gun includes a plurality of shaped charges located at a first distance from a detonator along a plurality of detonating cords and forming a first group, wherein the first group of shaped charges is configured to be detonated simultaneously. The plurality of detonating cords are of the same length.

Abstract: A shaped charge includes a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive comprises an intermetallic mixture comprising boron and a reactant metal. The reactant metal is one selected from the group consisting of Ti, Mg, Zr, Mo, and a combination thereof. A method for perforating in a well includes positioning a perforating gun in the well, wherein the perforating gun includes a shaped charge that includes: a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive includes an intermetallic mixture that contains boron and a reactant metal; and detonating the shaped charge in the well.

Abstract: A separation device for separating parts along a seam includes a frangible structure and a pressure tube assembly within the frangible structure. The pressure tube assembly includes a pressure tube which contains an explosive detonation assembly/cord that can be initiated to expand the pressure tube, and break the frangible structure with a shock force. The pressure tube assembly also includes a explosive manifold that is recessed in the frangible structure, not protruding from an outer surface of the frangible structure. The explosive manifold receives the ends of the pressure tube, and includes a detonator for detonating the explosive detonation assembly/cord. The explosive manifold has circular-cross-section fittings for accepting a circular ends of the pressure tube. By not having any part of the pressure tube assembly protrude from the frangible structure, improved performance may be achieved. Having circular fittings also improves the seal between the pressure tube and the explosive manifold.

Abstract: A modular hand grenade design that permits the use of compressed powders such as A-5. The hand grenade body is split into two main components—a base/sleeve and a nose cap. These two main components contain the explosive. They are loaded with explosive while still separate. The explosive is loaded into the base/sleeve and compressed to form a solid. A core sleeve is attached to the base to form a void inside the explosive where the detonating portion of a fuse assembly can be placed. Explosive is likewise loaded into the nose cap and compressed to form a solid. The nose cap is attached to the base/sleeve assembly. A fuse assembly is then attached to complete the grenade.

Abstract: An energetic material initiation device having a receiver assembly and an initiator assembly that includes an electronic initiator and a pellet assembly with an energetic material. The receiver assembly is configured to be coupled to a firing circuit. When the firing circuit is to be armed, the initiator assembly can be pressed into a socket in the receiver assembly to electrically couple the receiver assembly and the initiator assembly. A method for mounting an energetic material initiation device to a firing circuit is also provided.

Abstract: A modular hand grenade design that permits the use of compressed powders such as A-5. The hand grenade body is split into two main components—a base/sleeve and a nose cap. These two main components contain the explosive. They are loaded with explosive while still separate. The explosive is loaded into the base/sleeve and compressed to form a solid. A core sleeve is attached to the base to form a void inside the explosive where the detonating portion of a fuse assembly can be placed. Explosive is likewise loaded into the nose cap and compressed to form a solid. The nose cap is attached to the base/sleeve assembly. A fuse assembly is then attached to complete the grenade.

Abstract: Disclosed are thermite charges for use in well perforation and downhole fracing. The thermite charges have a core, and optionally a case, where at least one of the core and the case includes thermite material.

Abstract: An impulse cartridge having multiple charges that are independently activatable. The impulse cartridge is further voltage polarity independent through the use of diodes. The polarity independence provides increased reliability.

Abstract: Systems and methods for chemoremediation or mechanical destruction of undetonated explosive materials. An explosive apparatus contains an explosive material in close proximity to a chemical reagent selected for its chemoremediative properties. A barrier is interposed between the explosive material and the chemical reagent to delay the chemoremediation of the explosive material. Alternatively a water expandable material may be incorporated into the explosive material, whereby upon exposure to moisture the water absorbing material will expand sufficiently to fragment the explosive material into initiation insensitive particles. Initiation insensitivity is achieved by incorporation of water, which acts as a desensitizing agent as well as fragmenting the explosive material into particles sufficiently small that they are below the critical diameter for explosive initiation.

Abstract: A method to charge a container with an energetic mix is disclosed. This method includes the following steps: (a) adding a plurality of particulate energetic mix constituents and a binder to the container; and (b) mixing the plurality of energetic mix constituents utilizing a non-contact mixer to form a homogeneous mixture within the container, and curing the binder to solidify the homogeneous mixture and bind the homogeneous mixture to the container. The container may be a liner or pre-form intended for insertion into a device, or may form a portion of the device itself, such as an aft portion of a rocket motor or casing for an explosive device. Because the resonant mixer does not have a moving impeller or other component that contacts the energetic mix and the container is not reused, there is minimal decontamination required between each mix and the manufacturer may rapidly commence assembling the next device, rather than clean-up and recertification.

Abstract: A method for initiating a low-sensitivity explosive charge includes initiating a booster explosive charge within an explosive charge cavity in a booster housing, and generating a planar detonation wave. Generating the planar detonation wave includes directing a detonation wave through the booster housing along a first waveshaper surface of a detonation waveshaper. The detonation wave is directed around the first waveshaper surface toward a second tapered waveshaper surface. After progressing around the first waveshaper surface, the detonation wave is directed along the second tapered waveshaper surface. The detonation wave changes into a planar detonation wave as the detonation wave moves along the second tapered waveshaper surface, the planar detonation wave includes a planar wave front. The planar detonation wave strikes a flyer plate coupled over the explosive charge cavity of the booster housing, and the planar wave front makes planar contact along an inner face of the flyer plate.

Abstract: A cylindrical casing (18) has first and second ends (33 and 31), the first end (33) being closed. The casing (18) encloses an accelerant (22) disposed adjacent the first end (33), at least one stemming mechanism (21), and a fuse (14 or 14) extending from the accelerant (22) out of the second end (31) of the cylindrical casing (18). The cartridge (12) is made of a rupturable cylindrical casing (18) with accelerant (22) and self-stemming mechanism (22) inserted therein. A method of breaking hard (R) materials involves detonating a self-stemming cartridge (12) disposed in a borehole (B).

Abstract: The present invention refers to a process for manufacturing ammunition labeled with a sequence of characters which allows identification multiple data items, being said sequence of characters (1) laser-engraved, in one or more components of said ammunition, affording positive identification upon retrieval of an engraved component of said ammunition, even if it is already spent.

Abstract: A method of producing an assembly of a connector block (1, 21, 40) and a detonator (5, 25, 41) suitable for retaining at least one shock tube (4, 24) adjacent to a percussion-actuation end (15, 26) of the detonator, and to an assembly thus produced and a connector block therefor. The method comprising inserting a detonator into a connector block having a housing (2, 22, 40) provided with a bore (13, 31, 44), positioning the detonator in the bore of the housing so that the percussion-actuation end of the detonator is positioned adjacent to a slot (14, 35) for receiving the shock tubes; and fixing the detonator in the housing. The detonator is fixed in the housing by causing a body of material (10) to flow plastically into the recess in the detonator and to harden therein to form a locking element fixed to the housing, thereby preventing accidental movement of the detonator within the connector block.

Abstract: A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner portion which have different cohesiveness.

Abstract: A perforating gun loading bay includes a loading area and a separate gun component storage area. The perforating gun loading area also includes racks and a table that permit an in-line loading operation such that the gun housing and loaded gun need not be moved out of a linear path from introduction to the bay to unloading from the bay. The racks and the table may be position in axial alignment and may include low friction members to permit axial sliding motion along the racks and the table. A method for using the loading bay permits in-line handling. A perforating gun loading table includes low friction members permitting axial movement of perforating gun components therealong and low friction members permitting rotational movement of perforating gun components along their long axis. The perforating gun loading table includes a control system for selecting the low friction member that is positioned to engage the perforating gun component on the table.

Abstract: The present invention relates to an explosive device comprising an explosive material, and at least one igniting stimulus configured to ignite the explosive material when activated. The explosive device further comprises a sheet of material provided with at least one hole at least partially filled with the explosive material, each hole forms an opening in a first side of said sheet material and said at least one igniting stimuli is arranged on said first side. The invention also relates to a method for manufacturing an explosive device.

Abstract: A method of assembling an external telemetry unit for a projectile comprising the steps of providing a shell whose inside is formed to match the contour of the projectile body, encircling the front of the shell with a flexible battery and flexible electronic circuitry, and covering the flexible battery and flexible electronic circuitry with a plurality of contoured antennas. Also disclosed is a method of using an external telemetry unit comprising the steps of removing the fuze from a projectile having a projectile body and a fuze, sliding the unit over the front of the projectile body; reinstalling the fuze, firing the projectile, and observing the projectile data transmitted by the unit.

Abstract: A device for crimping the mouth of a detonator housing comprises a pair of opposed jaws reciprocally movable relative to each other, and a plurality of toothed segments on each jaw. The segments are moveable, are located in a jaw cavity, and together form a segmented ring. The side faces of each segment converge from a broad radially outer end towards a toothed radially inner narrow end. A resiliently stressable biasing element is provided between each adjacent pair of segments. The biasing elements act to space the segments of each pair apart when the jaws are spaced apart from each other, and also act to permit the segments, in response to movement of the moveable segments arising from the closing of the jaws, to abut against one another in series when the jaws are tightly in contact with each another, to form the segmented ring.

Abstract: According to the invention, there is provided a blast mitigation device (1) comprising one or more inflatable, rigidisable, free-standing arched frames comprised of one or more compartments (4, 4a), the or each compartment being fillable, in use, with a gaseous medium under pressure, and one or more water-fillable containers (3, 3a) supported or supportable by the or each free standing frame, which water-fillable container(s) form a blast mitigation structure in use.

Abstract: A block molded from a polymeric material has a through passageway to contain a percussive shock wave. Angularly related channels communicate with the containment passageway for receiving arcuate segments of detonation cord. Alignment of a plurality of blocks provides a convenient packaging setup for the cord. A percussive signal traveling along the cord can be short-circuited in the packaging setup. A diode version of the block can react to the signal in a given direction of travel.

Abstract: The present invention refers to a process for manufacturing ammunition labeled with a sequence of characters which allows identification multiple data items, being said sequence of characters (1) laser-engraved, in one or more components of said ammunition, affording positive identification upon retrieval of an engraved component of said ammunition, even if it is already spent.

Abstract: An initiator that includes a header body, an insulating spacer, an initiator chip, a plurality of terminals and a plurality of contacts. The insulating spacer is coupled to the header body. The initiator chip that forms at least a portion of an exploding foil initiator and includes a plurality of electric interfaces. The initiator chip is secured to a side of the insulating spacer opposite the header body. The terminals extend through the header body. The contacts electrically couple the electric interfaces to the terminals. The cover is coupled to the header body and cooperates with the header body to house the insulating spacer, the initiator chip and the contacts. A method for forming an initiator is also provided.

Abstract: Percussive signal transmission tubes, of contrasting color, are joined along adjacent longitudinally extending portions by an adhesive bead of polymeric material. The tubes can be separated in the field and are provided on spools without any sheath. A small diameter (0.10 inch) tube can be used to reduce the size of the spool, or increase the length of tubing wound on the spool. An apparatus for assembling the product is also disclosed.

Abstract: Percussive signal transmission tubes, of contrasting color, are joined along adjacent longitudinally extending portions by an adhesive bead of polymeric material. The tubes can be separated in the field and are provided on spools without any sheath. A small diameter (0.10 inch) tube can be used to reduce the size of the spool, or increase the length of tubing wound on the spool. An apparatus for assembling the product is also disclosed.

Abstract: A method for removing a damaged primer from the primer chamber of a cannon. The method comprises the steps of running a starter tap into a damaged primer, and shaking the damaged primer loose from the primer chamber so that the damaged primer comes out of the primer chamber on the edge of the tap.

Abstract: A method for producing a combustible cartridge case for cartridge ammunition, wherein an aqueous pulp containing nitrocellulose and cellulose fibers is produced, a raw felt is produced from the pulp through draining the fiber material on a sieve, and the raw felt is then compressed and shaped. To produce combustible cartridge cases possessing a greater mechanical stability than known cartridge cases of comparable dimensions, additives are mixed into the aqueous pulp prior to the production of the raw felt, to increase the stability of the fiber composite after the compressing process, so the breaking strength and the breaking elongation, and the resistance to tear propagation are increased. The additive is preferably a polymer material having a hydrophilic character and a high content of OH, NH2 and/or similar functional groups, and is capable of forming chemical bonds and/or engaging in intermolecular interaction with the cellulose or nitrocellulose molecules.

Abstract: Assembly of a gas generator 10 includes the step of adding uncured silicone to a propellant cup 25. Granulated oxidizer is then added over the top of the silicone and allowed to disperse therein. Afterwards, the silicone is cured to provide flush communication with an inner wall 14 of the propellant cup 25. Other granulated gas generant constituents may be added as well. A gas generator 10 assembled in this manner provides more predictable burn rates of a gas generant composition 26 and therefore more predictable performance of the gas generator 10.

Abstract: The invention relates to a method of producing an igniter for a gas generator. The igniter contains a charge sleeve which has an open end. The method comprising the following steps: A pyrotechnic ignition charge is introduced via the open end into the charge sleeve such that an edge of the charge sleeve projects axially at the open end with respect to the ignition charge. The projecting part of the edge is shortened axially, and the open end is closed. The invention further relates to a charge sleeve which has a weakened zone running along its periphery, or has a section which is able to be removed from the remainder of the charge sleeve.

Abstract: The present invention provides a method of determining the efficiency of a gun cartridge by determining the water weight volume of the cartridge; determining the bore diameter of the gun barrel; determining the weight of the bullet; and calculating the efficiency rating of the cartridge by multiplying the water weight volume by the bore diameter and dividing by the bullet weight. The efficiency rating is optimal between 110 and 145 when the water weight volume is determined in grains, the bore diameter is determined in thousandths of inches and the bullet weight is determined in grains. One such 50 caliber gun cartridge has a casing diameter of approximately 0.688 inches and neck portion which accepts a bullet having a bore diameter of approximately 0.510 inches. The case has a length ranging from 1.75 inches to 2.5 inches measured from the primer to the mouth of the neck.