A perforating tool includes an encapsulated shaped charge that has a bulkhead with a reduced wall thickness section, a plate having a shallow recess, and a detonating cord having an energetic core. The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.

A perforating tool includes an encapsulated shaped charge that has a bulkhead with a reduced wall thickness section, a plate having a shallow recess, and a detonating cord having an energetic core. The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.

A central initiating charge according to embodiments of the invention includes a pellet. The pellet has a proximal end and a distal end. A central longitudinal axis spans from the proximal end to the distal end. A void spans longitudinally in said pellet. The void spans parallel to the central longitudinal axis.

A central initiating charge according to embodiments of the invention includes a pellet. The pellet has a proximal end and a distal end. A central longitudinal axis spans from the proximal end to the distal end. A void spans longitudinally in said pellet. The void spans parallel to the central longitudinal axis.

An explosive booster shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster comprises a body containing a charge of an explosive substance with a passage extending inwardly of the body to receive a detonator therein. The booster is configured to alter the shape of a detonation wave generated upon initiation of the detonator. In an embodiment, the booster includes a first and a second explosive substance, with the first explosive substance being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave.

An explosive booster shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster comprises a body containing a charge of an explosive substance with a passage extending inwardly of the body to receive a detonator therein. The booster is configured to alter the shape of a detonation wave generated upon initiation of the detonator. In an embodiment, the booster includes a first and a second explosive substance, with the first explosive substance being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave.

An electromagnetic mobile active system for fitting in a missile with a detonation-operated magnetic field compressor. The magnetic field compressor has at least one stator coil and at least one armature casing, which is at least partially surrounded by the stator coil and kept at a radial distance. The magnetic field compressor has at least one explosive charge embedded in the armature casing. The magnetic field compressor has at least one power source. For activating the detonation of the explosive charge, a trigger system is provided. The trigger system can be controlled by a pulse of current from the power source, depending on a signal supplied by the missile. A great amount of electrical energy can be generated in the stator coil by the detonation. For the directional radiation of the electrical energy generated by the detonation of the explosive charge, the active system has at least one directional antenna.

An electromagnetic mobile active system for fitting in a missile with a detonation-operated magnetic field compressor. The magnetic field compressor has at least one stator coil and at least one armature casing, which is at least partially surrounded by the stator coil and kept at a radial distance. The magnetic field compressor has at least one explosive charge embedded in the armature casing. The magnetic field compressor has at least one power source. For activating the detonation of the explosive charge, a trigger system is provided. The trigger system can be controlled by a pulse of current from the power source, depending on a signal supplied by the missile. A great amount of electrical energy can be generated in the stator coil by the detonation. For the directional radiation of the electrical energy generated by the detonation of the explosive charge, the active system has at least one directional antenna.

A central initiating charge according to embodiments of the invention includes a pellet. The pellet has a proximal end and a distal end. A central longitudinal axis spans from the proximal end to the distal end. A void spans longitudinally in said pellet. The void spans parallel to the central longitudinal axis.

A perforating tool includes an encapsulated shaped charge that has a bulkhead with a reduced wall thickness section, a plate having a shallow recess, and a detonating cord having an energetic core. The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.