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| Number | Title | Issue Date |
| 8127682 | Cast booster using novel explosive core 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. ... | 03/06/2012 |
| 7421949 | Rapid deflagrating 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 Deflagrating Cord (RDC) hermetically encapsulated in a metal tubing. The me... | 09/09/2008 |
| 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 |
| 7188558 | Pyromechanical separating element The invention relates to a pyromechanical separating element having a hermetically sealed pyrotechnic pressure element (2), which is installed in a housing (1) and has a gas-forming pyrotechnic charge, and a detachable latching pin (5) which is ... | 03/13/2007 |
| 7146913 | Shaped charge tubing cutter A shaped charge detonation booster comprises a tubular wall body of substantially constant outside diameter for enclosing an axial primer path that terminates with an enlarged main cavity volume. Preferably, the main cavity is positioned within the juncture plane of... | 12/12/2006 |
| 7103510 | Logging of detonator usage A method of logging use of a non-electric detonator, which comprises recording identity data associated with the detonator at the time the detonator is being loaded in a blasthole, recording consumption of the detonator, and relating the identity data associated wit... | 09/05/2006 |
| 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 |
| 6739265 | Explosive device with assembled segments and related methods 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... | 05/25/2004 |
| 6691621 | Ignition device for a propellant charge 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 prop... | 02/17/2004 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6349648 | Detonator for 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... | 02/26/2002 |
| 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 |
| 6186069 | Explosives booster 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) charg... | 02/13/2001 |
| 6170399 | Flares having igniters formed from extrudable igniter compositions 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.... | 01/09/2001 |
| 5837924 | Signal transmission tube using reclaim material and method of manufacture The manufacture of a signal transmission tube (10a) comprising a polymeric tube (12) having an interior surface (14) with a thin layer of reactive material (18) disposed on the interior surface (14) is rendered more efficient and less costly by the use of... | 11/17/1998 |
| 5831204 | Propellant igniter assembly having a multi-zone booster charge A propellant igniter assembly includes a housing having ignition channels for the passage of an ignition flame through the housing; an igniter part accommodated in the housing; and a booster part accommodated in the housing and frontally adjoining the ign... | 11/03/1998 |
| 5780764 | Booster explosive devices and combinations thereof with explosive accessory charges A booster explosive device (10) has a housing (12) within which is contained an explosive primer charge (14). Mechanical fastener components such as exterior screw threads (32) on housing (12) and interior screw threads (34) on an explosive accessory char... | 07/14/1998 |
| 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 |
| 5710390 | Shock tube initiating system for display fireworks A system for initiating shock tube which has a low cost of manufacture, is relatively impervious to moisture, and initiates the shock tube reliably is described. The initiating system comprises a thermal input initiator device, a thermal enhancing output ... | 01/20/1998 |
| 5703320 | Connector for blast initiation system A connector device (10, 214) for transferring a nonelectric blast initiation signal from a donor line (26, 224) to an acceptor line, e.g., an input stub (24, 217) has donor line retaining means (20a, 20b, 229) for disposing a donor line (26, 224) in signa... | 12/30/1997 |
| 5661256 | Slider member for booster explosive charges A slider (36) has a base fixture (40) and a shielding tube (42). The slider (36) is used to operably couple a detonator (44) to a detonating cord (62) that passes through a booster device (10), i.e., to prevent the detonating cord (62) from directly initi... | 08/26/1997 |
| 5659149 | Secure connector for blast initiation signal transfer A connector device (10) for disposing a detonator (12) in signal transfer relation with a signal-receiving line (30) receives the detonator (12) in a sleeve member (14). A line-engaging member (24) is connected to the sleeve member (14) and cooperates wit... | 08/19/1997 |
| 5625162 | Signal tube of improved oil resistance The invention relates to oil resistant signal tube, in particular, to initiating explosives or explosives accessories which comprise signal tube. The signal tube of the invention has a sub-tube comprising polyethylene and an outer jacket comprising a ther... | 04/29/1997 |
| 5614693 | Accessory charges for booster explosive devices An accessory charge (20) for mounting on a booster explosive device (10) is preferably of toroidal configuration including a hub opening (29) dimensioned and configured to engage the accessory charge (20) with the booster device (10). The booster device (... | 03/25/1997 |
| 5515784 | Signal transmission devices and detonation systems using the same Signal transmission devices contain within a housing (12) at least a pair of signal transmission lines, e.g., signal transmission tubes (16, 18) having respective tube ends (16a, 18a) disposed within the housing to provide at least one input tube and at l... | 05/14/1996 |
| 5463955 | Transmission tube connector The present invention is directed to a connector for transmission tubes wherein a first initiated transmission tube transfers a signal to a second transmission tube within said connector.... | 11/07/1995 |
| 5291831 | Beneficial use of class 1.1 rocket propellant The present invention describes a method of using 1.1 solid rocket propellant in the detonation process for explosives. The use of the 1.1 solid rocket propellant is described as a booster for use in a blasting cap.... | 03/08/1994 |
| 5208419 | Shock tubing that is IR transparent color-coded A method of producing a coloured shock tubing comprising a visibly coloured hollow tube having an inner coating of a reactive material wherein the core loading of the reactive material in the tube may be measured by radiation absorption. The visible colou... | 05/04/1993 |
| 5192828 | Detonating cord and blasting cap connector block having a resilient free end cord latch An elongated connector block for mounting a blasting cap and detonating cord in side-by-side association for side initiation, the body having a generally U-shaped transverse cross-section with a slot extending the full length thereof, the opposed sides of... | 03/09/1993 |
| 5155293 | Safety booster for explosive systems A safety booster for a perforation gun assembly which includes a cup having at least one opening and a secondary explosive disposed within the cup. The booster also includes a cover for the opening to contain the secondary explosive inside the cup.... | 10/13/1992 |
| 5123356 | Transfer apparatus adapted for transferring an explosive train through an externally pressurized secondary explosive bulkhead A transfer unit is sealingly connected to a pressure tight housing. The pressure tight housing includes a detonator and electronics circuits connected to the detonator, the pressure tight housing being adapted to be disposed in a well apparatus situated i... | 06/23/1992 |
| 5012741 | Initiator for a transmission tube A transmission tube initiator comprises a body having a passageway formed therein for receiving and retaining an initiator charge. A holder holds a side of a transmission tube in close proximity to the charge. The charge provides an initiation signal whic... | 05/07/1991 |
| 5009855 | Gas generator for inflating a safety bag A gas generator for inflating a safety bag for the protection of persons in a vehicle, is equipped with a combustion chamber that is divided into a smaller section and into a larger section by a sheet metal insert. The sheet metal insert also divides the ... | 04/23/1991 |
| 4938141 | Shock initiator device for initiating a percussion primer A shock wave initiator device for initiating a percussion primer includes a primary explosive, an attenuation body, and a deflagrating member. The primary explosive is of a type which upon ignition is capable of detonation for producing a shock wave. The ... | 07/03/1990 |
| 4938143 | Booster shaped for high-efficiency detonating A booster for high efficiency initiation of an explosive material comprising a body portion having substantially tapered sides and a substantially flat interface surface at the larger end of the body portion extending generally laterally thereof for conta... | 07/03/1990 |
