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| Number | Title | Issue Date |
| 8033222 | Line-locking connector clip A connector clip (10, 10′) defines a line-retaining slot (34) and is configured to receive a detonator (16) therein. The connector clip (10, 10′) comprises a body member (12, 12′) and a closure member (14, 14′) which... | 10/11/2011 |
| 7891296 | Connector block for shock tubes, and method of securing a detonator therein 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 thu... | 02/22/2011 |
| 7739954 | Connector block with shock tube retention means and flexible and resilient closure member 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 perc... | 06/22/2010 |
| 7634965 | Pyrotechnic device with ignition delay A pyrotechnic device having an ignition delay between a fuse or igniter and a device to be ignited, including a first element which defines a first space that houses at least one fuse or igniter, and a second element which communicates with a second space that house... | 12/22/2009 |
| 7410049 | Diode cutoff and safe packaging system for detonating cord 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 provide... | 08/12/2008 |
| 7360487 | Connector for perforating gun tandem 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 correspo... | 04/22/2008 |
| 7246558 | Rapid deflagration cord (RDC) ordnance transfer lines 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 me... | 07/24/2007 |
| 7188566 | Non-electric detonator A detonator (10) has a constant-diameter shell (12) which has a significantly higher shell length-to-diameter (outside diameter) ratio than prior art detonators. The shell (12) is configured to hold an explosive output charge (18) which i... | 03/13/2007 |
| 7162957 | Redundant signal transmission system and development method 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... | 01/16/2007 |
| 7100512 | Timed pyric chain apparatus, in particular for the ignition of pyrotechnical fireworks A timed pyric chain apparatus, particularly for the ignition of pyrotechnical fireworks includes a main conduit (2) for a retard fuse (16) the main conduit (2) having lateral branch conduits (5). The apparatus consists of coupled modular ... | 09/05/2006 |
| 7100511 | Dual redundancy system for electronic detonators A detonator assembly (10) comprising a housing (12) disclosed and claimed. The assembly comprises an main circuit (11) comprising an electrically operable fuse (16) located in the housing. The assembly further comprises at least a first r... | 09/05/2006 |
| 7086629 | Severance of polycarbonates and polycarbonate laminates with linear shaped charge The present invention involve a method for severance of materials made of polycarbonate, polycarbonate laminate and aciylic/polycarbonate laminate, a canopy fracturing system and a conopy having the canopy fracturing system. The present invention utilizes a l... | 08/08/2006 |
| 7051657 | Group firing system for firework unit Group firing system for firework unit, wherein it has 1–2 paper fuse tubes, which are assembled with other shot tubes. While both ends of the paper fuse tubes have male socket and female socket, so each firework unit could be connected to a firework group through ... | 05/30/2006 |
| 7000545 | Multifunctional breaching apparatus Breaching apparatus including a housing constructed of a material that disintegrates upon explosion without significant amounts of fragments being given off, and an explosive element disposed in the housing capable of producing an explosive force sufficient for brea... | 02/21/2006 |
| 6966260 | Clip-on device for coupling an electric match to a pyrotechnic fuse There is provided a molded polymeric coupling device incorporating integral hinges, latches and strain-relief features adapted to receive an electric match having a protective chamber, and a quickmatch fuse of a pyrotechnic device. After the quickmatch fuse is suita... | 11/22/2005 |
| 6880465 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cut-off barrier provided by, e.g., a separating rib (46) be... | 04/19/2005 |
| 6868789 | Adaptor for securing a blasting cap initiator The present invention provides a two-part adapter for more securely holding a blasting cap initiator in place in a demolition or munitions device. This adaptor is an insert component, generally cylindrical in shape and having an inner diameter capable of surrounding... | 03/22/2005 |
| 6681701 | Blasting connector block A block connector for holding both a detonator, having an explosive end, and signal lines. The connector has a body member and a cover. The body member has an elongated, open, base and a connector head at one end of the base. The connector head holds the ... | 01/27/2004 |
| 6622630 | Booster 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... | 09/23/2003 |
| 6513437 | Blast initiation device A detonator device and assembly for the initiating a plurality of signal transmission lines with a pressure impulse. The detonator device comprising a detonator casing having a signal receiving end and a firing end. The firing end of the detonator device ... | 02/04/2003 |
| 6508176 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cutoff barrier provided by, e.g., a separating rib (46) between adjacent win... | 01/21/2003 |
| 6499405 | Connection and delay pyrotechnic device A pyrotechnic device of connection and delay between detonating cords and/or between an igniter and detonating cords, including a cavity divided up in two parts, the internal walls of which are coated with a very flammable material; a means for blocking o... | 12/31/2002 |
| 6467415 | Linear ignition system 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.RTM. bridge co... | 10/22/2002 |
| 6439121 | Perforating charge carrier and method of assembly for same A tubular charge holder assembly for a perforating gun made of a tube having a plurality of pairs of diametrically opposed openings. The pairs of openings are formed over a length of the tube, wherein the each pair has a larger and a smaller opening. A sh... | 08/27/2002 |
| 6435095 | Linear ignition system 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.RTM. bridge co... | 08/20/2002 |
| 6431074 | Blasting apparatus, blasting method and retainer member used for the blasting method Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance 10 expands in volume, so that the evaporative expansion force re... | 08/13/2002 |
| 6425332 | Low-energy shock tube connector system 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 secti... | 07/30/2002 |
| 6408765 | Door breaching device with safety adapter A breaching device for controlled blasting of an object at short range includes a blasting element including an explosive charge contained within a housing, the blasting element being configured to blast the object from a preset distance. Connected to, an... | 06/25/2002 |
| 6397752 | Method and apparatus for coupling explosive devices 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... | 06/04/2002 |
| 6318271 | Fuse igniter adapter assembly A fuse igniter adapter assembly that adapts various fuse cord sizes to a firing device for ignition by a primer. The assembly includes a hub subassembly, four retaining blades, a circular slide element, a circular cap element, a spring, and a snap ring.... | 11/20/2001 |
| 6305287 | Low-energy shock tube connector system 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 secti... | 10/23/2001 |
| 6295912 | Positive alignment insert (PAI) with imbedded explosive Redundant explosive transfer between two explosive carrier devices is accomplished by inserting into a transfer sub or gun head a non-moveable explosive means for receiving the detonating cord which, at its first end, establishes a gap from an adjacent po... | 10/02/2001 |
| 6244185 | Skyrocket A skyrocket is provided which provides a first fireworks effect prior to launch as well as a second effect after launching. The skyrocket includes a body which houses or is coupled to a rocket motor, a first effect and a second effect. A transparent or tr... | 06/12/2001 |
| 6123025 | Low noise, low shrapnel detonator assembly for initiating signal transmission lines A detonator assembly is provide which increases versatility, reliability and safety by initiating any amount of signal transmission lines up to about 8 without emitting excessive noise or shrapnel which can cause cut off or safety hazards. The detonator a... | 09/26/2000 |
| 6006671 | Hybrid shock tube/LEDC system for initiating explosives In a non-electric system for initiating explosives, a shock tube is initiated by the detonation of a low-energy detonating cord (LEDC) whose wall has been placed adjacent to an initiation-sensitive region of a thin membrane in the shock tube, or in a capp... | 12/28/1999 |
| 5837925 | Shaped charge retainer system An apparatus and method for retaining shaped charges. A foam core having charge carrying recesses can be constructed from a single piece or from multiple sections. Shaped charges are insertable within the foam core recesses so that the shaped charges are ... | 11/17/1998 |
| 5792975 | Connector block having detonator-positioning locking means A connector block (10) for connecting signal transmission lines in a blast initiation system includes a body member (12) having a channel (18) formed therein for receiving and retaining a detonator (20). A locking member (28) is mounted on the body member... | 08/11/1998 |
| 5747722 | Detonators having multiple-line input leads A detonator (10) is equipped with an input lead (29) having multiple signal transmission lines (30, 31) which provide redundant initiation signals to the target charge (14) of a detonator (10, 10') thereby increasing the reliability of initiation. The mul... | 05/05/1998 |
| 5714712 | Explosive initiation system A detonation system especially useful for initiating a plurality of substantially simultaneous seismic detonations includes an electric trunkline circuit disposed on the surface of a firing site containing boreholes, within which booster charges having re... | 02/03/1998 |
| 5708228 | Method and apparatus for transfer of initiation signals A method and apparatus for transferring non-electric blasting initiation signals from detonating cord signal donor lines to signal transmission tube acceptor lines involves disposing the acceptor line in enhanced signal transfer configuration with the don... | 01/13/1998 |
