Mar 10, 2026
A mine clearing device configured to be propelled into an area and detonated after landing has a detonating cord and a plurality of explosive blocks along the detonating cord. Each of the plurality of explosive blocks is configured such that, upon landing, a majority of the explosive material is between a ground and a horizontal plane of the detonating cord.
Mar 10, 2026
A device which is used to position a detonator assembly in a borehole. The device has a housing with an open mouth into which one end of the detonator assembly is inserted, formations on the housing which then engage with the detonator assembly, and flexible elements which extend from the housing and which are configured, in use, to engage with a wall of a borehole into which the device and the detonator assembly are inserted.
Mar 3, 2026
In a MEFP warhead detonation of the main charge is controlled to provide elevated pressure at multiple locations on the back surface of the liner to cut the liner and to form and propel forward a plurality of EFPs. An initiation system is configured for multi-point initiation of a plurality of booster charges to detonate the main charge to produce a plurality of detonation waves that constructively interfere at multiple locations on the back surface of the liner to form pressure hot spots that cut the liner and to form and propel forward a plurality of EFPs. In different embodiments, the elevated pressures are between 110% and 200% of the detonation pressure at the front of an individual detonation wave. The liner may, for example, be a flat plate or a include a plurality of dimples in which case the boosters are aligned to the center of the dimples.
Feb 24, 2026
An EFI or LEEFI provides enhanced detonation energy sufficient to directly detonate a main charge to improve the reliability and ease the qualification of an explosive firing train. This is accomplished by forming the EFI's output charge from an explosive material typically used as a booster explosive (e.g., PBXN-5, CH-6 and Composition A5) rather than a primary explosive and making the diameter of the output charge greater than the diameter of the barrel thus increasing the total mass of the output charge. The explosive firing train now requires only a single explosive transfer interface. For use in military grade munitions, the EFI's casing is formed with one or more vent holes radially adjacent the output charge.
Feb 10, 2026
A detonator for an explosive material is described. The detonator includes a semiconductor bridge, coupled with the explosive material, including thermal feedback mechanism is provided via one or more thermistors. An exemplary mechanism includes a semiconductor bridge with a polysilicon resistor and a pair of thermistors. The two thermistors are disposed to be substantially close to or sandwich the polysilicon resistor. When the temperature surrounding the polysilicon resistor is getting upwards, the temperature surrounding the thermistors is equally going up. When the temperature reaches a critical point, but below the threshold of the polysilicon resistor, the resistance of the thermistors drops suddenly or drastically, causing the current driving up the temperature of the polysilicon resistor to divert through the VOX temp resistors. Subsequently the current going through the polysilicon resistor is reduced, causing the temperature to drop downwards.
Jan 27, 2026
In a MSCJ warhead detonation of the main charge is controlled to provide elevated pressure at multiple locations on the back surface of the liner to cut the liner and to form and propel forward a plurality of SCJs. An initiation system is configured for multi-point initiation of a plurality of booster charges to detonate the main charge to produce a plurality of detonation waves that constructively interfere at multiple locations on the back surface of the liner to form pressure hot spots that cut the liner and to form and propel forward a plurality of SCJs. In different embodiments, the elevated pressures are between 110% and 200% of the detonation pressure at the front of an individual detonation wave. The liner may, for example, include a plurality of recesses such as shallow dimples or deeper conical structures in which case the boosters are aligned to the center of the recessed structures.
Oct 21, 2025
A bulk metallic glass (BMG) material includes at least one high strength reactive alloy having a surface on which one or more surface features are formed. The one or more surface features are configured to at least partially control a fragmentation of the BMG material. The BMG material forms a cavity within which an explosive is configured to reside.
Apr 15, 2025
With respect to an unprecedented process of preparation of inorganic fluorescent markers under the action of infrared light, for identification and marking, by a specific insertion process, in explosives, fuses, ammunition after detonation, as well as the identification and marking of steel and metal alloys of firearms and metal projectiles an improvement includes the physical insertion of the markers in the channel and in the crucible of the pig iron production process; in this improved process, marking was carried out in the ratio of 1 part of the marker to 1,325,750 parts per mass of pig iron.
