With Igniting Means Patents (Class 102/275.6)
  • Patent number: 11656066
    Abstract: A ballistic transfer system, comprising: a housing, wherein the housing is cylindrical, wherein the housing comprises: a central bore that traverses a length of the housing; a first end; wherein the first end is disposed about a first ballistic apparatus; and a second end, wherein the second end is opposite to the first end, wherein the second end is disposed about a second ballistic apparatus; an alignment insert, wherein the alignment insert is secured into the housing; a first detonation transfer line, wherein a portion of the first detonation transfer line is disposed within the alignment insert; and a second detonation transfer line, wherein a portion of the second detonation transfer line is disposed within the alignment insert.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 23, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Nicholas Gerald Harrington, Carter James Buono, Jason P. Metzger
  • Patent number: 11150058
    Abstract: A remote ignition device includes an igniter element, a fuel/oxidizer element, and a smoke generating element. Each of the igniter element, the fuel/oxidizer element, and the smoke generating element is configured in a layered configuration such that impact of the igniter element causes ignition of the fuel/oxidizer element and further causes the smoke generating element to release a visible smoke. Shooting targets incorporating the remote ignition device and methods of making the remote ignition device are also described.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 19, 2021
    Assignee: TARGET FLARES, LLC
    Inventors: Timothy Hartigan, Bradley Bartilson
  • Patent number: 10697739
    Abstract: The present invention provides an electronic flashbang device including solid state electronics to produce and control sound and light emissions. The device comprises a housing disposed with at least twelve high intensity LEDs at an exterior surface. The housing further includes at least two high decibel sirens. The device further includes a rechargeable batteries to feed power to the LEDs and sirens. A safety switch is incorporated at the outer surface of the housing to activate the electronic flashbang device. On operation of the device, the LEDs are configured to generate brighter light emission and the sirens are configured to emit an intensely loud noise pulse, thereby disables the target for a short period of time allowing safer entry without any fire, soft tissue injury to the target, user or infrastructure.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 30, 2020
    Inventor: David Skipper
  • Patent number: 10170297
    Abstract: Described herein are compositions or formulations for forming a film in a semiconductor deposition process, such as without limitation, a flowable chemical vapor deposition of silicon oxide. Also described herein is a method to improve the surface wetting by incorporating an acetylenic alcohol or diol surfactant such as without limitation 3,5-dimethyl-1-hexyn-3-ol, 2,4,7,9-tetramethyl-5-decyn-4,7-diol, 4-ethyl-1-octyn-3-ol, and 2,5-dimethylhexan-2,5-diol, and other related compounds.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: January 1, 2019
    Assignee: VERSUM MATERIALS US, LLC
    Inventors: Ronald Martin Pearlstein, Daniel P. Spence
  • Patent number: 8991315
    Abstract: A detonator assembly (10) which includes a housing (16), an explosive (20) in the housing (16), an initiating element (32) exposed to the explosive (20), a circuit for controlling operation of the initiating element (32), and a communication arrangement which can establish communication between the circuit and an external controller (60) at least at one optical frequency.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 31, 2015
    Assignee: Detnet South Africa (Pty) Ltd
    Inventors: Andre Koekemoer, Craig Charles Schlenter, Albertus A. Labuschagne, Christopher Malcolm Birkin, Herman Van Der Walt
  • Patent number: 8943970
    Abstract: A energy transfer device (10) is provided that is capable of transferring the energy output from one pyrotechnic device (52) to another device (78) for initiating firing thereof. Device (10) comprises a device housing (12) in which a deformable device insert (14) is received. Device insert (14) comprises a central passageway (34) for transmitting the output from a pyrotechnic device (52), including energy, gasses, and/or solids, to another pyrotechnic device (78). The passageway (34) conducts the pyrotechnic device output to a precise location on the second pyrotechnic device (78) where firing is most effectively initiated. The energy transfer device (10) may be employed as a part of a tool (44) used in well completion operations.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 3, 2015
    Assignee: Fike Corporation
    Inventors: William Greeley, Raivo Kull, Ed Soohoo
  • Patent number: 8857339
    Abstract: An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: October 14, 2014
    Assignee: AEL Mining Services Limited
    Inventors: Elmar Muller, Pieter Stephanus Jacobus Halliday, Clifford Gordon Morgan, Paul Dastoor, Warwick Belcher, Xiaojing Zhou, Glenn Bryant
  • Patent number: 8621998
    Abstract: A remote initiator breaching system for initiating breaching charges over a short range requiring no physical link between the breacher and the demolition charge. The remote initiator breaching system has at least one transmitter, at least one receiver, at least one shock tube connectable to a breaching charge and a power source for each of the transmitter and receiver. The transmitter is able to generate and transmit a coded signal. The transmitter has an input for inputting operational commands into the transmitter for generating the coded signal, The transmitter has a plurality of channels representing different frequency bands, and multiple addresses for each channel such that transmission of the coded signal from the transmitter to the receiver is possible per individual addresses or all addresses simultaneously.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: January 7, 2014
    Assignee: Mas Zengrange (NZ) Limited
    Inventors: Roger Neil Ballantine, Tony Humphries, Deon Grobler, Drago Lavrencic, David Hamilton
  • Patent number: 8573124
    Abstract: An ordnance firing system is disclosed that includes a reusable electronics module and an ordnance module, each enclosed in a separate, sealed housing. The electronics module housing encloses firing electronics for electrically triggering initiation of a detonator in the ordnance module. The electronics module detachably connects to the ordnance modules via a connector which extends away from the electronics module housing. The housing of the ordnance module is constructed to be blast-resistant to prevent detonation of the detonator from rendering the electronics module inoperable.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 5, 2013
    Assignee: Orbital Sciences Corporation
    Inventors: Curtis Havran, Jackie Wayne Spears, Karina Ogilvie, Robert John Keller, David Phillips
  • Patent number: 8408132
    Abstract: Initiator modules for munitions control systems include a mounting portion for receiving a portion of an initiation device, a detonator device disposed within the initiator module, a connection portion configured to connect the initiator module with a munitions control system, and an electronics assembly configured to electronically couple with a munitions control system and transmit a signal to the detonator device. Munitions systems may include initiator modules received in a socket of a munitions control system. Methods of igniting explosive devices include coupling a shock tube to an explosive device, connecting an initiator module to a munitions control system, mounting a portion of the shock tube to the initiator module, and igniting the shock tube with a detonator device disposed within the initiator module.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: April 2, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: James D. Lucas, Denny L. Kurschner, Thomas E. MacPherson
  • Patent number: 8402892
    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.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: March 26, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Eric Scheid, Brad Moan, Thomas Gailey
  • Patent number: 8387503
    Abstract: The invention relates to a pyrotechnic device for the destruction of munitions by an explosive at least partially surrounding the munitions having walls for confining the active products. The device includes an igniter for the controlled ignition of the explosive, the igniter configured to couple explosive detonation waves into the walls of the munitions along at least two opening lines of said walls of the munitions. Application of embodiments of the invention includes controlled destruction of munitions or objects containing pyrotechnic and/or chemical substances.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: March 5, 2013
    Assignee: TDA Armements S.A.S.
    Inventors: Martine Lesage, Gilles Boucheron
  • Patent number: 8316768
    Abstract: An elongate, flexible, incendiary device for producing a nearly instantaneous source of flaming combustion along a linear pathway of indeterminate length. The incendiary device is provided in the form of a solid, continuous strand, such as, for example, a ribbon, tape, cord, filament, rope or tube. The device is comprised of means for rapid ignition along the longitudinal axis of the strand in co-linear arrangement with a solid or semi-solid combustible fuel composition. Upon ignition, the device produces flames from its exterior surface for a duration of time suitable for igniting nearby combustible matter. The incendiary device provides a nearly instantaneous line of fire for igniting prescribed fires, controlled burns, and backfires. A method for igniting vegetative matter over an area of land using one or more indeterminate lengths of a rapidly igniting linear incendiary strand.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: November 27, 2012
    Inventor: Jeffrey P. Reistroffer
  • Patent number: 8051775
    Abstract: A detonating device includes a high explosive portion comprising high explosive; a low explosive portion comprising low explosive; and a transition portion between the high explosive portion and the low explosive portion, wherein the transition portion comprises a mixture of high explosive and low explosive.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: November 8, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Steven W. Henderson, Philip Kneisl, Bennie C. Gill
  • Patent number: 7814833
    Abstract: Disclosed is a detonation initiator that can form part of a demolition assembly. The detonation initiator can include a linear actuator assembly having a core with a permanent magnet disposed with respect to a coil, and a firing pin coupled to the core and disposed along a longitudinal axis of the linear actuator assembly. A capacitor can be used to store electrical energy derived from an electrical pulse received by the detonation initiator. An electrical circuit can be used to monitor the charge on the capacitor and to discharge the capacitor through the coil of the linear actuator assembly to propel the core along the longitudinal axis of the linear actuator assembly when the charge on the capacitor reaches a charge threshold.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: October 19, 2010
    Assignee: Raytheon Company
    Inventor: David G. Land
  • Patent number: 7765932
    Abstract: Described in this specification is a shock tube initiator that is suitable for one, two, or more shock tubes. The initiator has a number of safety features to avoid inadvertent firing of the shocking primer. Features include a rotary safety and a firing plunger that selectively interfere with the firing pin. There may further be a safety pin for fixating the rotary safety onto the housing of the initiator, so users must deliberately remove the safety pin before the rotary safety can be disengaged.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: August 3, 2010
    Assignee: Method of Entry Technologies Pty Ltd
    Inventor: Scott Allman
  • Patent number: 7665401
    Abstract: A shock tube initiator (STI) for allowing the remote and/or manual initiation of at least one shock tube, typically two shock tubes is disclosed.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: February 23, 2010
    Assignee: Mas Zengrange (NZ) Ltd
    Inventors: Roger Ballantine, Anthony Paul Hornbrook, Ian Moore, Dave Norman Hamilton
  • Patent number: 7634965
    Abstract: 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 houses the device to be ignited, moreover, the device includes a track containing an evenly burning flammable material, which is in permanent contact with the first space by a connecting portion of the first space and with the second space by an opening. The first element can slide in relation to the second element and/or vice versa such as to alter the length of the track between the connecting portion and the opening, in order to modify the duration of the ignition delay.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: December 22, 2009
    Inventor: Francesco Ambrico
  • Patent number: 7490554
    Abstract: An initiator assembly (38) is factory-pre-assembled and comprises an initiation fixture (10) secured to a triggering device (40). The initiation fixture (10) comprises a unitary body, i.e., one without moving parts, and includes a bushing groove (18) to receive as an accessory an O-ring (64) to seal the device within the barrel (42) of the triggering device (40). A fuse/fixture sub-assembly (34) includes an initiation charge (30) disposed at the firing face (13a) and a signal-transmission fuse (22). The initiation fixture (110) may be a “universal” fixture having thereon optional external threads (36) and being otherwise dimensioned and configured to be received within either an internally threaded barrel (42) of a triggering device (40) or the barrel (42) of a triggering device which utilizes a fuse-holder cap (56). The initiator assembly (38) may include a spool (66) on which the signal-transmission tube (22) is wound.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 17, 2009
    Assignee: Ensign-Bickford Aerospace & Defence Company
    Inventors: David C. Lynch, Ronald M. Dufrane, Jeffrey M. Kezerian, Jack C. Cotner
  • Patent number: 7431075
    Abstract: A propellant assembly for fracturing a formation around a well includes a propellant and a detonating cord wrapped around the propellant, the detonating cord to ignite the propellant upon detonation of the detonating cord. Alternatively, the propellant can include a substantially central axial bore, with the propellant having a plurality of axial slots extending radially outwardly from the axial bore toward the outer surface of the propellant. A detonating cord is arranged within the axial bore of the propellant.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: October 7, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: James E. Brooks, Philip Kneisl, Alexander F. Zazovsky, Mark C. Duhon, Alfredo Fayard
  • Patent number: 7409911
    Abstract: An apparatus for fracturing wells employs a propellant charge and an ignition cord wrapped around the outer surface of the propellant charge to rapidly ignite the outer surface of the propellant charge.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: August 12, 2008
    Assignee: Propellant Fracturing & Stimulation, LLC
    Inventors: John P. Tiernan, Richard S. Passamaneck
  • Patent number: 7360487
    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.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 22, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: William D. Myers, Jr., Edgar W. Van Sickle, Kristian Vargervik
  • Patent number: 7188566
    Abstract: 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 is cylindrical in configuration and has a charge L:D ratio which is greater than that of prior art constant diameter detonators. As a result, a significant portion of the output signal of the detonator is directed laterally and it is feasible to transfer signals to a plurality of receptor lines disposed along that portion of the length of the detonator which is co-extensive with the length of the explosive output charge (18). A connector block (26) is configured to hold at least one array of receptor lines in side-by-side arrangement along the side of the detonator (10), and transversely to the longitudinal axis of the detonator (10).
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: March 13, 2007
    Assignee: Dyno Nobel Inc.
    Inventor: Ernest L. Gladden
  • Patent number: 7117796
    Abstract: An igniter's housing is bored continuously there through to define, in succession, several bore regions. A firing pin, slidingly fit in the first bore region, terminates in a tip that protrudes into a primer-filled second bore region when the firing pin is fully seated in the first bore region. An air-filled third bore region follows the second bore region. An open-ended cup is fitted substantially in and sealed to the fourth bore region with the cup's closed end being structurally weakened at a portion thereof. A bored out slug of pyrotechnic material is fitted in the cup.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: October 10, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kurt D. Bogle, Allen M. Bryant, Steve P. D'Arche, Michael H. Jones, Vic N. Makximenko, Frank L. Soltis, Brent T. Voigtschild
  • Patent number: 6691621
    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.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: February 17, 2004
    Assignee: Giat Industries
    Inventors: Jean-Francois Pierrot, Jean-Luc Taillandier
  • Patent number: 6651563
    Abstract: An ignition element consists of a combination of first and second ignition components. The first ignition component contains at least one primer, at least on heat-conducting additive selected from the group consisting of zirconium, aluminum, titanium, ferrotitanium, zirconium boride, zirconium hydride and mixtures thereof, at least one oxidant and a binder. The second ignition component contains at least one ingredient that produces hot re4action particles, an oxidant, and a binder.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: November 25, 2003
    Assignee: Dynamit Nobel Artiengesellschaft
    Inventors: Gunther Faber, Helmut Zollner
  • Patent number: 6622630
    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.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: September 23, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Wenbo Yang, Jason H. Mai, Lawrence A. Behrmann
  • Patent number: 6584905
    Abstract: In a system for igniting detonation cord or shock tube, a plated through-hole in printed circuit board is coupled to a circuit to have high voltage and high current applied to the plated through-hole. The end of the detonation cord or shock tube is passed through the plated through-hole and formed into a knot to secure the detonation cord or shock tube in the plated through-hole. The voltage and current applied to the plated through-hole are of sufficient magnitude to explode the plated through-hole and ignite the detonation cord or shock tube.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: July 1, 2003
    Inventor: Richard N. Snyder
  • Patent number: 6581519
    Abstract: A blasting cap initiator system has a main housing with an imperforate lower wall, parallel side walls, and front and rear walls. An L-shaped locking slot is formed centrally in one side wall with a trigger recess formed in the top wall adjacent the rear wall and a cylindrical bore extending from the rear wall through the front wall. A firing pin is mounted for reciprocal movement within the bore between a retracted orientation and an advanced orientation. The firing pin has a centrally located circumferential groove. A trigger is pivotably mounted in the trigger recesses movable between a locking orientation with a finger engageable with the groove and a raised orientation to a disengage orientation. A pair of axial coil springs between the rear wall and the cylinders independently allow the advancement of the cylinders.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: June 24, 2003
    Inventor: Leslie K. Adams
  • Patent number: 6536798
    Abstract: An apparatus for activating a selected one or more restraint devices located in a vehicle is provided. The apparatus reliably and inexpensively activates restraint devices upon the receipt of one or more appropriate signals. The apparatus includes a control unit having a housing enclosing a processor, a circuit board, and a plurality of initiator assemblies. Explosive transfer lines are inter-connected to the initiator assemblies at a first end, and to the restraint devices at a second end. Upon the receipt of an appropriate signal from one or more sensors located in the vehicle, the processor activates at least one of the initiator assemblies, which in turn ignites at least one of the explosive transfer lines. The explosion propagates along the explosive transfer line to its corresponding restraint device or devices to activate one or more of them.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: March 25, 2003
    Assignee: Aùtoliv ASP, Inc.
    Inventor: Brian K. Hamilton
  • Patent number: 6530327
    Abstract: A pyrotechnic device and method for making the same is disclosed which includes a pyrotechnic composition comprising a fuel, an oxidizing agent, and at least one of a metal salt and metal powder; wherein the pyrotechnic composition further comprises a cylinder with an internal surface area positioned within an outer cylindrical surface area; and, wherein prime is proximately disposed at least at one end of the internal surface area of said cylinder.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: March 11, 2003
    Assignee: DMD Systems, LLC
    Inventors: Michael A. Hiskey, Darren L. Naud
  • Patent number: 6516725
    Abstract: A cartridge assembly 10 includes a shell 12 containing a propellant charge 19. At a rear, open end, the shell 12 holds a force amplifying initiating device 20, in turn holding a rim fire primer 22 in operative association with the propellant 19. A firing pin body 40 is movably held within the device 40 to expose a rear of the body 40 to a shock wave to initiate the device 20. A fore end of the body 40 includes a taper formation 48 having a rounded fore point 50 aligned with an inactive surface of the primer 22 centrally within a firing rim. Inadvertent (mechanical) actuation of the firing pin 40 will fall to cause sufficient and sufficiently fast impingement on the primer to initiate the primer. Only a shock wave can cause initiation. The primer 22 is held in a collar 34 allowing it to flare open upon initiation and holding it within the shell 12 after initiation.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: February 11, 2003
    Assignee: Denel (Proprietary) Limited
    Inventors: Frederick Alexander Jackson, John Hofmeyr Godsiff
  • Patent number: 6515570
    Abstract: A fuse has a fuse element (6), composed of silver, with constrictions (7) which follow one another at regular intervals, and which fuse element makes contact with a combustible element (8), preferably over its entire length. The combustible element (8) is composed of a combustion compound, which is essentially of a fuel such as guanidine or a guanidine derivative and a metal such as Mg or Al and an oxidant such as KNO3, NaNO3, NH4NO3, KClO4, NaClO4, KMnO4, the proportion of which is overstoichiometric by a factor of at least 1.1, and preferably of at least 10. The combustible compound also preferably contains a binding agent such as paraffin, a thermoplastic or an elastomer, so that it can be extruded. It has an ignition temperature of between 160° C. and 260° C. and emits more than 200 J/g of heat, so that it ignites even in the event of small overcurrents and melts the entire length of the fuse element (6).
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: February 4, 2003
    Assignee: ABB Research Ltd
    Inventors: Uwe Kaltenborn, Ralf Strümpler, Joachim Glatz-Reichenbach, Felix Greuter
  • Patent number: 6386085
    Abstract: A method for assembling a blast initiation device is provided. The method comprises providing a length of signal transmission line having first and second ends, mounting a tag to the line and mounting a first detonator to the first end of the line wherein all of the steps are each performed at a single operator station by a single operator. Also provided is an apparatus for utilizing the method. The apparatus comprises a tagger device for mounting a tag to a length of signal transmission line having first and second ends. A crimp device is adjacent the tagger device for mounting a first detonator to the first end of the line. A blocker device is adjacent the detonator crimp device for locking a connecting block to the first detonator. The tagger, crimp and blocker devices are spatially arranged adjacent an access position for ease of operation by a single operator. Further provided is a kaizen cell comprising a plurality of workstations.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 14, 2002
    Inventor: Betty A. Garrett
  • Patent number: 6227116
    Abstract: A detonator comprising a shell with a secondary explosive base charge, igniting means and an intermediate pyrotechnical train, said train comprising a novel ignition composition with a specific redox-pair of a metal fuel and a metal oxide oxidant, said fuel being present in excess to the amount of stoichiometrically being required to reduce the metal oxide, the ignition composition being able to ignite said secondary explosive into a convective deflagrating state to reliably detonate the same. Use of said novel ignition composition for the ignition of secondary explosives in general.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: May 8, 2001
    Assignee: Nitro Nobel AB
    Inventor: Viktor Dumenko
  • Patent number: 6209457
    Abstract: A method and an exothermic composition for controlled localized heating of a base material, said composition comprising an exothermic mixture material, a binder material, and optional filler and starter materials, said exothermic mixture material having a predetermined temperature of burning, said binder material providing said composition in a preformed shape when processed with said exothermic material mixture. Self-propagating high-temperature synthesis (SHS) materials are used as preferred exothermic materials. These compositions can be used for a variety of industrial purposes such as cutting, welding, or coating of various materials.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: April 3, 2001
    Assignee: Technology Commercialization Corp.
    Inventors: Michael W. Kenworthy, Sergey A. Sushchenko