Abstract: An explosive detonating system comprises connectable components to connect/disconnect a pathway that ignites an explosion. A firing actuator activates primers (percussion caps). An adapter connects the firing actuator to shock tube and channels the ignition force into the shock tube. A cap box houses blasting caps coupled to the end of the shock tube. A priming well is coupled to the cap box/blasting caps and the detonating cord. When the firing actuator is initiated, the percussion caps ignite, sending an explosive wave into the adapter, which channels the wave into the shock tube and ignites the shock tube. The explosive wave travels through the shock tube and activates the blasting caps, which activate the detonating cord in the priming well. The explosive is placed in a location to provide a desired explosive effect. For example, the system may be employed as a system to breach structures or other applications.

Abstract: A technique facilitates controlled detonation in well environments and other types of environments. Electronics for controlling detonation of a pellet of explosive material are mounted on a structure, such as a circuit board. The pellet is operatively coupled with the electronics and positioned to extend outwardly from the structure. Another explosive component is arranged across the pellet at a predetermined angle, e.g. a right angle, with respect to a longitudinal axis of the pellet. In well applications or other applications utilizing shaped charges, the explosive component may be coupled to the shaped charge via a detonator cord.

Abstract: A munition has a fuze that is mounted nonparallel to the axis of the munition, for example having a largest extent that is perpendicular to the longitudinal axis of the munition. Shocks from the fuze are transferred through a shock transfer device that is in contact with the fuze, to an initiation device that is also in contact with the shock transfer device. Shocks passing through the shock transfer device to the initiation coupler pass through a relatively narrow neck of the shock transfer device. In the shock transfer device the shock is concentrated and located precisely at the neck, before spreading out again and being transferred to the initiation device. In the initiation device the shock may detonate a high explosive material, which in turn is used to detonate a main explosive of the munition, such as a warhead.

Abstract: A tactical capsule charge system includes a plurality of plastic containers connected serially, mechanically, and explosively by detonating cord. Each plastic container contains composition C-4 that is detonated by the detonating cord that passes through the interior of the container. The quantity of PETN inside the container is enhanced by tying a knot in the detonating cord in the interior of the container or by wrapping the detonating cord in the interior of the container with PETN sheet. Any number of containers may be used and they may be spaced along the detonating cord at any desired interval.

Abstract: A priming assembly and a method are provided for coupling a plurality of detonators to at least one explosive through a plurality of transmission lines. The priming assembly may include a housing that receives the plurality of detonators and the plurality of transmission lines. In use, the plurality of transmission lines may communicate with the plurality of detonators within the housing to transmit explosive charges from the plurality of detonators to the at least one explosive.

Abstract: The invention relates to a method and a device for propagating the detonation effect from one detonation cord (5) to another, whereby the detonation cords (5) comprise respective boosters (4) at their ends. The booster of one detonation cord and the booster of the other detonation cord to which the detonation effect should be propagated are arranged with their front faces joining each other. The aim of the invention is to provide a method and a device which allows propagation also under unfavorable conditions while requiring only few individual parts. For this purpose, at least one booster of two adjacent detonation cords is subjected to a force acting in the direction of the other booster, thereby ensuring constant contact of the front faces (15) of the adjacent boosters.

Abstract: An improved cast booster design and method of assembly is provided for the detonation of blasting agents. The booster design utilizes a pre-formed core that simplifies assembly of the booster and increases the reliability of detonation transfer from a blasting cap. The pre-formed core has a cup shaped aperture provides improved coupling with the initiation source. The pre-formed core is made using a relatively insensitive explosive composition that can be manufactured using high speed pressing methods. The explosive composition allows for the attainment of a well defined shape with a predictable density. The pre-formed core shape mates with the casting mold in a way that ensures the location of the core within the booster thereby improving reliability and reducing labor associated with the booster manufacturing operation.

Abstract: A warhead including a case, a main explosive being received within the case, an initiator having at least a portion embedded within a main explosive charge, and a releasable coupling intermediate the main explosive charge and the initiator.

Abstract: A connector block for retaining at least one shock tube in signal transfer relationship with a detonator. The connector block comprises a housing (2, 21) having a bore (4, 23) formed therein for receiving a detonator (6, 36) provided with a percussion-actuation end (7, 25), a shock tube retention means (8, 28) defining with the housing a slot (9, 29) for receiving therein at least one shock tube (10, 30) and holding the at least one shock tube in signal transfer relationship with the percussion-actuation end of the detonator present in the bore, the slot having an entrance (12, 32) for allowing insertion of the at least one shock tube into the slot, and a flexible and resilient closure member (11, 31) or an inflexible closure member (50) pivotable on a sprung hinge (51) extending partially or fully into the entrance.

Abstract: The invention relates to a method and a device for propagating the detonation effect from one detonation cord (5) to another, whereby the detonation cords (5) comprise respective boosters (4) at their ends. The booster of one detonation cord and the booster of the other detonation cord to which the detonation effect should be propagated are arranged with their front faces joining each other. The aim of the invention is to provide a method and a device which allows propagation also under unfavorable conditions while requiring only few individual parts. For this purpose, at least one booster of two adjacent detonation cords is subjected to a force acting in the direction of the other booster, thereby ensuring constant contact of the front faces (15) of the adjacent boosters.

Abstract: A novel transfer ordnance line and novel end fittings for the transfer line for use in space vehicles, aircraft, missile systems and other military applications. The transfer line is a Rapid Deflagrating Cord (RDC) hermetically encapsulated in a metal tubing. The metal tubing terminates at end fittings such as a loaded high energy (HE) end fitting which detonates, a low energy (LE) end fitting which burns, and a percussion primer used to start burning of the RDC in the transfer line. The transfer line is constructed so that gases produced during the burning of the RDC do not escape and pose a threat to the surroundings during functioning and so moisture does not enter the system during shelf life, transportation, or at any other time prior to functioning. With minor adjustments to the transfer tube and the end fittings, the transfer tubing can be made flexible by forming a coil.

Abstract: A perforating gun connector comprising a first and second section connected together on one end. The two sections of the perforating gun connector that couple together are correspondingly tapered so that one end of one connector is tapered and fits into the corresponding tapered hollowed section of one end of the other section. The present invention also provides for the inclusion of shaped charges and booster charges within. Adjacent the charges are sealing bulkheads.

Abstract: A novel transfer ordnance line and novel end fittings for the transfer line for use in space vehicles, aircraft, missile systems and other military applications. The transfer line is a Rapid Deflagration Cord (RDC) hermetically encapsulated in a metal tubing. The metal tubing terminates at end fittings such as a loaded high energy (HE) end fitting which detonates, a low energy (LE) end fitting which burns, and a percussion primer used to start burning of the RDC in the transfer line. The transfer line is constructed so that gases produced during the burning of the RDC do not escape and pose a threat to the surroundings during functioning and so moisture does not enter the system during shelflife, transportation, or at any other time prior to functioning. With minor adjustments to the transfer tube and the end fittings, the transfer tubing can be made flexible by forming a coil.

Abstract: A segmented explosive device capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to the explosive device by a transmission line coupled between the control device and the explosive device. The explosive device has a first charge segment and a second charge segment disposed in an assembled relationship. The first charge segment has a first abutment surface formed on a portion of the exterior thereof and a cavity recessed in the first abutment surface. An output end of the transmission line is received by the cavity and contacts the first charge segment. The cavity of the first charge segment can be configured to dispose explosive material in the path of a plasma zone propagating through voids internal of the explosive device to facilitate advance detonation of the explosive material before a shock wave front trailing the plasma zone reaches the explosive material.

Abstract: A propellant charge ignition device having one or more ignition means and incorporating one or more diffuser tube(s) extending through a part of the propellant charge. The structure permits a flame generated by the ignition means to be guided up to a propellant charge receiver zone. There is also disclosed a propellant charge incorporating one or more block(s) of agglomerated propellant powder, the block having at least one closed-ended ignition channel for receiving a diffuser tube of the propellant charge ignition device.

Abstract: A booster to relay a detonation train from a detonating cord to another booster includes an explosive and a shell. The shell has an open end to receive an end of the detonating cord and an indented closed end that is adapted to form a projectile to strike the other booster when the explosive detonates. The explosive may include at least fifty percent by weight of NONA, and in some embodiments, the explosive may be primarily NONA.

Abstract: A linear ignition system for a metal-sheathed linear explosive including in one embodiment the ends of two metal-sheathed linear explosives are connected by a non-electrically conductive sleeve leaving a gap between the ends, and a Pyrofuze® bridge connects the metal-sheath of one end to the metal sheath of the other end. Electrical contacts are made to the two metal sheaths and application of current to the electrical contacts ignites the Pyrofuze® bridge and the linear explosives. Embodiments can also include an explosive mixture in the gap, using a hotwire bridge, or including booster increments for initiating detonating explosives. The linear ignition systems offer robust, easy-to-install linear explosive devices for applications in automotive, commercial or military aircraft safety systems, other military and aerospace applications, and commercial blasting.

Abstract: A booster to relay a detonation train from a detonating cord to another booster includes an explosive and a shell. The shell has an open end to receive an end of the detonating cord and an indented closed end that is adapted to form a projectile to strike the other booster when the explosive detonates. The explosive may include at least fifty percent by weight of NONA, and in some embodiments, the explosive may be primarily NONA.

Abstract: A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main section, a cylindrical explosive end portion having a diameter less than the diameter of the main section, and a transition portion connecting the main section and the explosive end portion of the shell. An explosive charge is contained within the explosive end portion of the shell and is distributed along the longitudinal length of the explosive end portion. The explosive charge preferable comprises two portions of lead azide or a first charge portion of lead azide and PETN and a second charge portion of PETN. An initiating shock tube is operatively connected to the explosive charge via a delay element. The block body includes a housing within which the main section of the detonator is received.

Abstract: A gun system in one arrangement includes a first carrier including a detonating cord and a second carrier including a detonating cord. An adapter couples the first and second carriers, with the adapter including an explosive coupled to the detonating cord of one of the first and second carriers. The explosive is positioned in a reduced housing portion of the adapter. The reduced housing portion of the adapter has a first outer diameter less than an inner diameter of the first carrier to provide a predetermined annular space between the reduced adapter portion and the inner diameter of the first carrier. At least one of the detonating cords in the first and second carriers is attached to a retainer element, and the retainer element is placed in close proximity to the explosive to maintain an axial position of the detonating cord to reduce separation between the detonating cord and the explosive.

Abstract: A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main section, a cylindrical explosive end portion having a diameter less than the diameter of the main section, and a transition portion connecting the main section and the explosive end portion of the shell. An explosive charge is contained within the explosive end portion of the shell and is distributed along the longitudinal length of the explosive end portion. The explosive charge preferable comprises two portions of lead azide or a first charge portion of lead azide and PETN and a second charge portion of PETN. An initiating shock tube is operatively connected to the explosive charge via a delay element. The block body includes a housing within which the main section of the detonator is received.

Abstract: A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main section, a cylindrical explosive end portion having a diameter less than the diameter of the main section, and a transition portion connecting the main section and the explosive end portion of the shell. An explosive charge is contained within the explosive end portion of the shell and is distributed along the longitudinal length of the explosive end portion. The explosive charge preferable comprises two portions of lead azide or a first charge portion of lead azide and PETN and a second charge portion of PETN. An initiating shock tube is operatively connected to the explosive charge via a delay element. The block body includes a housing within which the main section of the detonator is received.

Abstract: An explosives booster (10) intended for igniting a main explosive charge is provided which includes a first explosive charge (15) which is sensitive enough to be ignited by the explosion of a charge from a detonator (13); and a second explosive (16) charge which is less sensitive to ignition that the first charge, (15) but more sensitive to ignition than the main charge. The first charge may comprise a 60/40, and the second charge a 40/60, PETN/TNT pentolite mixture.

Abstract: The present invention relates to flares and other solid propellant devices, rockets or the like, equipped with an igniter or igniter system which is based in whole in part on an extruded igniter stick.