Containing Free Metal Or Free Carbon Patents (Class 149/108.2)
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Patent number: 8202377Abstract: A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.Type: GrantFiled: February 9, 2007Date of Patent: June 19, 2012Assignee: Alliant Techsystems Inc.Inventors: Jack Erickson, Joel Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu
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Patent number: 8192568Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.Type: GrantFiled: February 11, 2008Date of Patent: June 5, 2012Assignee: Alliant Techsystems Inc.Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
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Patent number: 8187398Abstract: An energetic composition and system using amassed energetic multilayer pieces which are formed from the division, such as for example by cutting, scoring, breaking, crushing, shearing, etc., of a mechanically activatable monolithic energetic multilayer(s) (e.g. macro-scale sheets of multilayer films), for enhancing the sensitivity of the energetic composite and system to mechanical initiation of self-sustained reaction. In particular, mechanical initiation of the energetic composition may be achieved with significantly lower mechanical energy inputs than that typically required for initiating the monolithic energetic multilayers from which it is derived.Type: GrantFiled: May 18, 2007Date of Patent: May 29, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Alexander E. Gash, Troy W. Barbee, Jr.
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Patent number: 8187397Abstract: An explosive emulsion to be used in conjunction with a gas-producing agent, such as sodium nitrite, to form an explosive emulsion with a density between 0.50 g/cm3 and 0.90 g/cm3. The present invention also includes the method for producing the explosive emulsion. The explosive emulsion is stable for at least 96 hours with nitrogen bubbles, having a predetermined dimension range, homogenously distributed. To maintain this low-density explosive emulsion stable, between 84% and 95% by weight of an oxidizing solution is combined with 5% to 16% by weight of a fuel solution. The fuel solution includes solid cacao fat as a stabilizing agent and stearic acid to prevent the combination of the nitrogen bubbles. The method for producing the oxidizing solution includes combining ammonium nitrate, sodium nitrate, thiourea, urea, and water at a temperature between 80 and 90 degrees centigrade. In another step of the method, a fuel solution is produced by combining an emulsifier, oil, diesel No.Type: GrantFiled: November 12, 2010Date of Patent: May 29, 2012Assignee: Industrias Minco, S.A.C.Inventors: Pio Francisco Perez Cordova, Luis Alfredo Cardenas Lopez
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Publication number: 20120125493Abstract: A priming mixture is provided having a primary explosive and an oxidizer system containing bismuth oxide. The priming mixture generally is applicable to any application or device that employs ignition of a propellant or fuel, including, but not limited to, air bag gas generator systems, signaling devices, ejection seats, small or large arms ammunition primers, and the like.Type: ApplicationFiled: February 1, 2012Publication date: May 24, 2012Inventors: Donald A. Pile, Henry J. John, JR.
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Explosive composition having a first organic material infiltrated into a second microporous material
Publication number: 20120118448Abstract: An energetic composition with controlled detonation having at least a first organic material and a second material, where the second material is a porous material (micro-, meso-, or macroporous), having a pore ratio of at least 10% and preferably greater than 50%, and the first material is, at least partially, infiltrated into the pores of the second material. A mixture containing such a composition, and a method for manufacturing such a composition and such a mixture. Additionally, a method for fragmenting or expanding a microporous immaterial at nanoscale.Type: ApplicationFiled: October 6, 2008Publication date: May 17, 2012Applicant: INSTITUT FRANCO-ALLEMAND DE RECHERCHES DE SAINT-LOUISInventors: Marc Comet, Denis Spitzer, Vincent Pichot -
Patent number: 8172963Abstract: A laminated energetic device is disclosed. The laminated energetic device includes a low-gas generating energetic mixture, a first film on which the low-gas generating energetic mixture is located, and a second film for sealing the low-gas generating energetic mixture between the first and second films.Type: GrantFiled: October 16, 2008Date of Patent: May 8, 2012Assignee: NCC Nano, LLCInventor: Kurt A. Schroder
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Patent number: 8172964Abstract: A method for creating a pyrophoric material according to one embodiment includes thermally activating a carbon foam for creating micropores therein; contacting the activated carbon foam with a liquid solution comprising a metal salt for depositing metal ions in the carbon foam; and reducing the metal ions in the foam to metal particles. A pyrophoric material in yet another embodiment includes a pyrophoric metal-carbon foam composite comprising a carbon foam having micropores and mesopores and a surface area of greater than or equal to about 2000 m2/g, and metal particles in the pores of the carbon foam. Additional methods and materials are also disclosed.Type: GrantFiled: December 5, 2008Date of Patent: May 8, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Alexander E. Gash, Joe H. Satcher, Jr., Randall L. Simpson, Theodore F. Baumann, Marcus A. Worsley
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Patent number: 8172966Abstract: Non-lethal payloads may be customized for particular uses and desired visual and audible incapacitation based upon the selection of igniter/activators and illuminants used with the non-lethal payloads. Non-lethal payloads employing high flame temperature igniter/activators and illuminants of powder metals, powdered metals combined with oxidizers, and powdered metals combined with heat-activated chromophores may produce improved “flashes” and “bangs” for non-lethal payloads used with diversionary or other devices. Such devices and methods of producing illuminance and noise are also disclosed.Type: GrantFiled: March 7, 2006Date of Patent: May 8, 2012Assignee: Alliant Techsystems Inc.Inventors: Reed J. Blau, Lisa S. Liu, Ronald L. Hansen, Richard G. Ames
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Patent number: 8168016Abstract: High performance aluminized explosive compositions for high performance, high blast, low sensitivity explosive applications are disclosed. The compositions include Cl-20, HMX, RDX, or another material as the explosive ingredient, a binder system of cellulose acetate butyrate and bis-dinitropropyl acetyl and bis-dinitropropyl formal, and aluminum. The explosive is preferably pressable and or/mixable to permit formation into grains suitable for ordnance and similar applications including grenades, warheads, landmines, demolition, etc. The aluminum fully participates in the detonation of said explosive, manifesting its energy into fully useable metal pushing energy suitable for shaped charges, explosively formed penetrators, fragmentation warheads, enhanced blast warheads, multipurpose warheads, and the like. The aluminum is substantially reacted at two volume expansions of the expanding gas, and fully reacted prior to seven volume expansions of the expanding gas.Type: GrantFiled: April 7, 2005Date of Patent: May 1, 2012Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Steven M. Nicolich, Christos Capellos, Wendy A. Balas, Jeffrey D. Akester, Robert L. Hatch
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Patent number: 8123879Abstract: The invention generally relates to an energetic composition including adjacent layers of an explosive and a combustible fuel, and making of the energetic composition. Specifically, making the energetic composition includes vapor deposition of an explosive layer on a combustible fuel surface; alternatively, a combustible fuel layer may be chemically or physically deposited on an explosive surface to make the energetic composition.Type: GrantFiled: September 6, 2007Date of Patent: February 28, 2012Assignee: The United States of America as represented by the Secretary of the NavyInventors: Victor J. Bellitto, Stanley M. Caulder
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Patent number: 8118956Abstract: A method of manufacturing a pyrotechnic time delay composition includes admixing together a solid oxidizer, a solid fuel and water to form an aqueous slurry. The slurry is transformed into droplets. The droplets are gas-dried to form particles comprising the oxidizer and the fuel, with the particles thus constituting a pyrotechnic delay composition.Type: GrantFiled: September 20, 2007Date of Patent: February 21, 2012Assignee: AEL Mining Services LimitedInventors: Clifford Gordon Morgan, Craig Rimmington
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Publication number: 20120031390Abstract: A solid state moderated chemical reaction for use with a heating device comprises the complete reaction between iron powder and the oxidizer sodium chlorate in stoichiometric balance such that the oxygen, rather than being emitted externally to the device, is fully reacted internally in the heating device to a solid oxide. A heating device comprises a heating chamber defining an interior space for receiving and storing a substance to be heated, a heater for use as a source of heat which includes a reaction chamber, a solid state reaction composition disposed within the reaction chamber such that it is physically isolated from and in thermal communication with the interior space of the heating chamber, an activation mechanism in communication with the composition disposed within the reaction chamber, and wherein the reaction composition is inert until the activation mechanism is actuated.Type: ApplicationFiled: July 6, 2011Publication date: February 9, 2012Applicant: HEATGENIE, INC.Inventors: Brendan Coffey, Krzsyztof Czeslaw Kwiatkowski, Travis Bookout
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Patent number: 8092622Abstract: Bimetallic alloys prepared in a ball milling process, such as iron nickel (FeNi), iron palladium (FePd), and magnesium palladium (MgPd) provide in situ catalyst system for remediating and degrading nitro explosive compounds. Specifically, munitions, such as, 2,4,6-trinitrotoluene (TNT), cyclo-1,3,5-trimethylene-2,4,6-trinitramine (RDX), nitrocellulose and nitroglycerine that have become contaminants in groundwater, soil, and other structures are treated on site to remediate explosive contamination.Type: GrantFiled: June 4, 2009Date of Patent: January 10, 2012Assignee: University of Central Florida Research Foundation, Inc.Inventors: Christian Clausen, Cherie Geiger, Michael Sigman, Rebecca Fidler
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Patent number: 8092623Abstract: An igniter composition is provided including metal fuel particles having a predetermined average diameter and metallic oxide oxidizer particles having a predetermined average diameter. The metal fuel particles are mixed substantially homogeneously with the metallic oxide oxidizer particles and, upon initiation of the igniter composition, actively participate in an exothermic reaction with the metallic oxide oxidizer particles. Also provided are methods and devices containing the igniter composition.Type: GrantFiled: April 22, 2008Date of Patent: January 10, 2012Assignee: The United States of America as represented by the Secretary of the NavyInventors: Randall J. Cramer, Magdy Bichay
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Patent number: 8075715Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.Type: GrantFiled: January 5, 2007Date of Patent: December 13, 2011Assignee: Alliant Techsystems Inc.Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
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Patent number: 8066834Abstract: Adding nanoparticles as a catalyst to solid propellant fuel to increase and enhance burn rates of the fuel by up to 10 times or more and/or modifying the pressure index. A preferred embodiment uses TiO2 nanoparticles mixed with a solid propellant fuel, where the nanoparticles are approximately 2% or less of total propellant mixture. The high surface to volume ratio of the nanoparticles improve the performance of the solid propellant fuel.Type: GrantFiled: August 3, 2006Date of Patent: November 29, 2011Assignee: University of Central Florida Research Foundation, Inc.Inventors: Eric Petersen, Jennifer Small, Metthew Stephens, Jason Arvanetes, Sudipta Seal, Sameer Deshpande
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Patent number: 8062442Abstract: Triacetone triperoxide (TATP) and other explosives of the peroxide family are safely degraded in situ. Nano and micron size metal particles in an elemental state include pure iron and magnesium or iron and magnesium particles that are mechanically alloyed with palladium and nickel. The metal particles are used in both the elemental state and in emulsions that are made from water, a hydrophobic solvent, such as corn oil, and a food-grade nonionic surfactant. The neat metals and emulsified zero valent metals (EZVM) safely degrade TATP with the major degradation product being acetone. The EZVM system absorbs and dissolves the TATP into the emulsion droplets where TATP degradation occurs. EZVM systems are ideal for degrading dry TATP crystals that may be present on a carpet or door entrance. Both the neat metal system and the emulsion system (EZVM) degrade TATP in an aqueous slurry.Type: GrantFiled: April 3, 2007Date of Patent: November 22, 2011Assignee: University of Central Florida Research Foundation, Inc.Inventors: Christian Clausen, III, Cherie L. Geiger, Michael Sigman, Rebecca Fidler
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Patent number: 8048242Abstract: A nanocomposite thermite ink for use in inkjet, screen, and gravure printing. Embodiments of this invention do not require separation of the fuel and oxidizer constituents prior to application of the ink to the printed substrate.Type: GrantFiled: April 5, 2007Date of Patent: November 1, 2011Assignee: Sandia CorporationInventors: Alexander S. Tappan, Joseph Cesarano, III, John N. Stuecker
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Patent number: 8038813Abstract: The invention relates to a heat-generating mixture, to a method and a device for generating heat, especially for heating food such as water, coffee, etc.Type: GrantFiled: March 15, 2004Date of Patent: October 18, 2011Assignee: Ruag Ammotec GmbHInventors: Peter Simon Lechner, Ulrich Bley, Rainer Hagel, Aleksej Hoschenko
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Patent number: 8007608Abstract: The present invention is directed to a tracer composition for tracer bullets and other projectiles. One preferred formula of the tracer composition generally includes about 58 parts by weight of magnesium, about 38 parts by weight of polytetraflouroethylene, about 4 parts by weight of acrylic rubber, and a burn rate stabilizer such as about 1.5 parts by weight of carbon black or graphite. Tracer bullets including the tracer composition of the invention tend to exhibit a projectile path that is almost unnoticeable to the naked eye but quite visible through the use of equipment detecting energy in the near infrared range.Type: GrantFiled: October 20, 2009Date of Patent: August 30, 2011Assignee: Kilgore Flares Co., LLCInventors: David W. Herbage, Roy L. Neuhauser, Barry N. Smith
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Patent number: 8007607Abstract: Combustible structural composites and methods of forming same are disclosed. In an embodiment, a combustible structural composite includes combustible material comprising a fuel metal and a metal oxide. The fuel metal is present in the combustible material at a weight ratio from 1:9 to 1:1 of the fuel metal to the metal oxide. The fuel metal and the metal oxide are capable of exothermically reacting upon application of energy at or above a threshold value to support self-sustaining combustion of the combustible material within the combustible structural composite. Structural-reinforcing fibers are present in the composite at a weight ratio from 1:20 to 10:1 of the structural-reinforcing fibers to the combustible material. Other embodiments and aspects are disclosed.Type: GrantFiled: September 19, 2008Date of Patent: August 30, 2011Assignee: Battelle Energy Alliance, LLCInventors: Michael A. Daniels, Ronald J. Heaps, Eric D Steffler, William D. Swank
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Patent number: 8002914Abstract: A flash powder formulation for use in flash grenades that produces reduced smoke containing from about 10 percent by weight to about 60 percent by weight of zirconium hydride, from about 40 percent by weight to about 90 percent by weight CAN, and from zero percent by weight to about 5 percent by weight of a binder material.Type: GrantFiled: March 24, 2009Date of Patent: August 23, 2011Assignee: United States of America as represented by the Secretary of the NavyInventors: Steven P. D'Arche, Travis Swanson
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Patent number: 7998293Abstract: Surface-modified metal fuels, which improve the stability in storage of pyrotechnics and methods for manufacturing such fuels, are provided. Improved storage stability is conferred either by alloying the precursor metal prior to the powder production process, or by forming an enhanced stability coating on the surface of the metal powders during the powder production process.Type: GrantFiled: July 3, 2008Date of Patent: August 16, 2011Inventor: Paul Smith
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Patent number: 7998290Abstract: A thermobaric munition including a composite explosive material, the composite explosive material having a high-explosive composition, and a detonable energetic material dispersed within the high-explosive composition, the detonable energetic material in the form of a thin film, the thin film having at least one layer composed at least in part by a reducing metal and at least one layer composed at least in part by a metal oxide. A related method includes tailoring the blast characteristics of high explosive composition to match a predetermined time-pressure impulse, the method including disbursing a detonable energetic material having a preselected reaction rate within the high-explosive composition, the detonable energetic material in the form of a thin film, the thin film having at least one layer composed at least in part by a reducing metal and at least one layer composed at least in part by a metal oxide.Type: GrantFiled: April 13, 2010Date of Patent: August 16, 2011Assignee: Lockheed Martin CorporationInventors: Edward W. Sheridan, George D. Hugus, George W. Brooks
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Patent number: 7998291Abstract: A thermite torch formulation that includes a metal fuel in the form of a magnalium alloy and an oxidizer in the form of MoO3. When the thermite formulation is reacted, a torch may direct at least one reaction product onto a certain region of an object to deliver a large amount of energy to that region of the object.Type: GrantFiled: December 14, 2009Date of Patent: August 16, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: Steven P. D'Arche, Travis Swanson, Brian Molof
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Patent number: 7988802Abstract: A thermite torch formulation that consists essentially of a metal fuel, a first oxidizer CuO, a second oxidizer MoO3, and a binder material. When the thermite formulation is reacted, a torch may direct at least one reaction product onto a certain region of an object to deliver a large amount of energy to that region of the object.Type: GrantFiled: December 14, 2009Date of Patent: August 2, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: Steven P. D'Arche, Travis Swanson, Brian Melof
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Patent number: 7955451Abstract: A munition is described including a reactive fragment having an energetic material having a least one layer of a reducing metal or metal hydride and at least one layer of a metal oxide dispersed in a binder material. A method is also described including forming a energetic material; including combining the energetic material having a least one layer of a reducing metal or metal hydride and at least one layer of a metal oxide with a polymeric binder material to form a mixture; and shaping the mixture to form a reactive fragment. The munition may be in the form of a warhead, and the reactive fragment may be contained within a casing of the warhead.Type: GrantFiled: February 22, 2007Date of Patent: June 7, 2011Assignee: Lockheed Martin CorporationInventors: George D. Hugus, Edward W. Sheridan
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Patent number: 7931763Abstract: Adding nanoparticles as a catalyst to solid propellant fuel to increase and enhance burn rates of the fuel by up to 10 times or more and/or modifying the pressure index. A preferred embodiment uses TiO2 nanoparticles mixed with a solid propellant fuel, where the nanoparticles are approximately 2% or less of total propellant mixture. The high surface to volume ratio of the nanoparticles improve the performance of the solid propellant fuel.Type: GrantFiled: October 16, 2009Date of Patent: April 26, 2011Assignee: University of Central Florida Research Foundation, Inc.Inventors: Eric Petersen, Jennifer Small, Metthew Stephens, Jason Arvanetes, Sudipta Seal, Sameer Deshpande
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Patent number: 7927439Abstract: The invention is a method and a composition where, on command, a distributed number of micron size voids are created in an energetic material. The voids are hot spots, which change the shock compression sensitivity of the explosive composition by a factor of 2 to 10. The composition contains SMART materials, which are magnetostrictive materials having a large magnetostrictive coefficient, and in a matter of microseconds following the application of an external electromagnetic field, each of the magnetostrictive nano-structures expands and contracts forming a void, where the sum of the voids increases the shock compression sensitivity of the composition.Type: GrantFiled: August 8, 2008Date of Patent: April 19, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: Jerry W. Forbes, Chak P. Wong, G. William Lawrence
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Patent number: 7927437Abstract: A structured, self-assembled nanoenergetic material is disclosed that includes a nanostructure comprising at least one of the group consisting of a fuel and an oxidizer and a plurality of substantially spherical nanoparticles comprising at least the other of the group consisting of a fuel and an oxidizer. The spherical particles are arranged around the exterior surface area of said nanorod. This structured particle assures that the oxidizer and the fuel have a high interfacial surface area between them. Preferably, the nanostructure is at least one of a nanorod, nanowire and a nanowell, and the second shaped nanoparticle is a nanosphere.Type: GrantFiled: October 28, 2005Date of Patent: April 19, 2011Assignee: The Curators of the University of MissouriInventors: Shubhra Gangopadhyay, Rajesh Shende, Senthil Subramanian, Keshab Gangopadhyay, Shameem Hasan
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Patent number: 7896988Abstract: A charge system for destroying chips on a circuit board is provided. The charge system has a first substrate having a number of recesses formed therein with each of the recesses having a housing disposed therein. A high density charge is disposed within the housing. A number of recesses are formed within the high density charge. A number of low density charges are disposed within each of the recesses formed within the high density charge. A second substrate is located proximate to the first substrate. The low density charge and the high density charge are structured to destroy the second substrate after ignition. A method of destroying chips is also provided.Type: GrantFiled: June 15, 2007Date of Patent: March 1, 2011Assignee: Spectre Enterprises, Inc.Inventor: Jonathan Mohler
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Patent number: 7887650Abstract: The present invention provides a gas generating composition comprising a fuel and an oxidizing agent and further a copper powder.Type: GrantFiled: March 1, 2007Date of Patent: February 15, 2011Assignee: Daicel Chemical Industries, Ltd.Inventors: Kenji Kitayama, Shogo Tomiyama
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Patent number: 7883593Abstract: A novel pyrotechnic delay composition for use in metal delay fuse cartridges, including as its primary constituent Si—Al—Fe3O4 prepared from powdered form. The delay composition yields a progressive burning zone and burns substantially gas-free, is safe to handle, is resistant to moisture and degradation over time, can be incorporated within the confines of existing detonator shells, and poses no environmental hazards.Type: GrantFiled: November 26, 2008Date of Patent: February 8, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: James E. Rose, Magdy Michay, Jan Puszynski
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Patent number: 7879166Abstract: The present invention relates generally to carbon nanotubes, and more particularly to the interaction of single wall carbon nanotubes with hydrazoic acid to introduce energetic azide groups into the nanotubes to form activated carbon nanotubes.Type: GrantFiled: October 31, 2007Date of Patent: February 1, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: Farhad Forohar, Magdy Bichay
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Publication number: 20100300319Abstract: A primer composition with reduced toxicity suited for reduced-energy ammunition comprises bismuth (III) oxide as the principal oxidizer and contains a portion of propellant composition mixed therein. This composition may also be used in a cartridge which is otherwise substantially free of any other propellant compound and preferably produces a residue which is substantially free of toxic substances.Type: ApplicationFiled: December 23, 2008Publication date: December 2, 2010Inventor: Louise Guindon
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Patent number: 7837813Abstract: Stone Wales defect pairs in a carbon nanostructure are used to store energy. Energy is released by a chain reaction of phonons disrupting the defect pairs to generate more phonons until the lattice returns to its original hexagonal form and the energy is released in the form of lattice vibrations. Devices may be configured as a battery to release electrical energy in a controlled manner or as an explosive to release energy in an uncontrolled manner.Type: GrantFiled: May 28, 2009Date of Patent: November 23, 2010Assignee: Raytheon CompanyInventors: Delmar L. Barker, William R. Owens
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Publication number: 20100275802Abstract: According to the invention there is provided an impact initiated pyrotechnic target including an impact initiated pyrotechnic composition which can be initiated by the impact of an inert projectile, said pyrotechnic composition including: an oxidising agent; optionally, a fuel or reducing agent; a sensitiser in the form of a sulfur containing compound; and optionally, a binder.Type: ApplicationFiled: November 14, 2008Publication date: November 4, 2010Applicant: Simon Richard GreenInventors: Benjamin John Green, Paul Thomas Albert Mulvihill
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Publication number: 20100278712Abstract: The present invention provides a method and formulation for the creation of a diamond-carbon bearing material of varying particle sizes. The material is a detonation by-product of explosive formulations that employ carbon dioxide as the oxidizing agent and a material, such as powdered magnesium, as the fuel for such detonation.Type: ApplicationFiled: December 22, 2008Publication date: November 4, 2010Inventor: Daren Normand Swanson
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Publication number: 20100252022Abstract: A solid state thermite reaction composition is provided comprising a fuel component, an initiating oxidizer, a primary oxidizer, a fluxing agent and a thermal diluent. According to another aspect, a heating device is provided comprising a heating chamber for receiving and storing a substance to be heated having at least two walls, a reaction chamber affixed to a wall of the heating chamber, a solid state thermite reaction composition located within the reaction chamber and an actuatable trigger mechanism affixed to the reaction chamber such that the trigger mechanism is in contact with the reaction composition. According to another aspect, a solid-state thermite reaction activation mechanism is provided comprising a first compound substantially in contact with a thermite reaction fuel, a second compound and a removable barrier located between the first and second compounds preventing any contact between the first and second compounds.Type: ApplicationFiled: April 7, 2009Publication date: October 7, 2010Applicant: Ironbridge Technologies, Inc.Inventors: Brendan Coffey, Donald R. Schropp, JR., Krzysztof Czeslaw Kwiatkowski
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Patent number: 7807000Abstract: A thermobaric explosive composition is provided that includes coated fuel particle, a nitramine, and binder. The coated fuel particles preferably have a magnesium core and an aluminum coating. Upon detonation, the nitramine disperses the coated fuel particles over a blast area during a first overpressure stage. The aluminum coating of the fuel particles has a thickness selected to provide an amount of aluminum that is stoichiometrically less than an amount of ambient-air oxygen available in the blast area for aerobic combustion with the aluminum during the first overpressure stage. Once exposed, the magnesium cores may combust to increase the impulse generated in the first overpressure stage. Also provided are articles of manufacture and related methods.Type: GrantFiled: October 25, 2004Date of Patent: October 5, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventor: James J. Baker
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Patent number: 7806999Abstract: This invention relates to granules comprising a homogenous mixture of metal flakes and/or metal powder and metal oxide powder, and a binder. The invention also relates to a process for producing such granules. The process includes the step of forming a mixture of metal flakes and/or metal powder and metal oxide powder, forming the mixture into a homogenous blend, adding the blend, together with a binder, to a granulator to form granules, and drying the granules. Granules so formed containing aluminum, aluminum oxide and iron oxide find particular use as sensitizers and energizers in explosives compositions.Type: GrantFiled: October 15, 2001Date of Patent: October 5, 2010Inventor: Dennis Gordon Verity
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Patent number: 7784403Abstract: The invention relates to an energetic igniter charge consisting of a mixture of at least one secondary explosive and an optical doping material in powder form. In accordance with the invention, the optical doping material is a metal. The energetic igniter charge can be used in a detonator as well as in an igniter.Type: GrantFiled: July 5, 2006Date of Patent: August 31, 2010Assignee: Deutsch-Franzosisches ForschungsinstitutInventors: Henry Moulard, Auguste Ritter, Jean-Marie Brodbeck
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Publication number: 20100212787Abstract: An ordered energetic composite structure according to one embodiment includes an ordered array of metal fuel portions; and an oxidizer in gaps located between the metal fuel portions. An ordered energetic composite structure according to another embodiment includes at least one metal fuel portion having an ordered array of nanopores; and an oxidizer in the nanopores. A method for forming an ordered energetic composite structure according to one embodiment includes forming an ordered array of metal fuel portions; and depositing an oxidizer in gaps located between the metal fuel portions. A method for forming an ordered energetic composite structure according to another embodiment includes forming an ordered array of nanopores in at least one metal fuel portion; and depositing an oxidizer in the nanopores.Type: ApplicationFiled: February 24, 2009Publication date: August 26, 2010Inventors: Alexander E. Gash, Thomas Yong-Jin Han, Donald J. Sirbuly
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Patent number: 7776169Abstract: A polyvinyl(tetrazole) is formed by a water-based method. A gas generating composition 12 containing the polyvinyl(tetrazole) is contained within an exemplary gas generator 10. An article or gas generating system 200 incorporates the polyvinyl(tetrazole) therein. A vehicle occupant protection system 180 incorporates the gas generating system 200. An article or substrate 300 containing a coating 302 formed from the product of the water-based method is also described.Type: GrantFiled: July 31, 2006Date of Patent: August 17, 2010Assignee: Automotive Systems Laboratory, Inc.Inventors: Cory G. Miller, Graylon K. Williams
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Patent number: 7749345Abstract: A fluorine gas generating material composition comprises a fluorine bearing material, the fluorine bearing material releasing fluorine gas at a first temperature, and a coruscative material, a reaction temperature of the coruscative material equal to or greater than the first temperature. In some embodiments, the fluorine bearing material is a nickel-based alloy and the coruscative material includes an element from Group IVB, VB or VIB of the periodic table or a transition metal and a carbon-based material. The fluorine gas generating material composition can be incorporated into a product such as a munition, a flare, a shape charge or an impulse device. The disclosed fluorine gas generating material composition can be used to produce work in applications and methods that include point delivery of fluorine gas, explosives related applications, aerospace applications, and applications in the fields of mining and drilling.Type: GrantFiled: August 21, 2008Date of Patent: July 6, 2010Assignee: Lockheed Martin CorporationInventor: James R. Wood
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Publication number: 20100096136Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing, a high explosive, and a reactive liner where the high explosive is positioned between the reactive liner and the housing. The reactive liner is produced from a composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition may be selected from any known formulation which is suitable for use in an oil and gas well perforator, typically the composition will comprise at least two metals such as to form a inter-metallic as classified by Hume-Rothery electron compounds and at least one further metal, which is not capable of an exothermic reaction with the reactive composition which is present in an amount greater than 10% w/w of the liner. Typically at least one of the metals which undergoes an exothermic reaction may be selected from Al, Ce, Li, Mg, Mo, Ni, Fe, Co, Nb, Pb, Pd, Ta, Ti, Zn or Zr.Type: ApplicationFiled: February 18, 2008Publication date: April 22, 2010Inventors: Brian Bourne, Nathan G. Clark
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Patent number: 7670446Abstract: A method is disclosed for preparing metastable nanoenergetic composites (MNC) and for wet loading those MNCs into percussion primer cups. The method involves dispersing nanosize reactants in an inert liquid or, alternatively, making a nanosize reactant surface modification for improvement of reactant's chemical inertness towards water, followed by application of additives supporting a solid reactant particle dispersion in water or water solution prior to mixing. After mixing of the reactants, one maintains the presence of liquid water together within an energetic material in order to enhance safety during pre-loading of the primer mixture into the primer cups and during the final drying.Type: GrantFiled: April 19, 2005Date of Patent: March 2, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Jan A. Puszynski, Magdy M. Bichay, Jacek J. Swiatkiewicz
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Publication number: 20100037999Abstract: A method of manufacturing a pyrotechnic time delay composition includes admixing together a solid oxidizer, a solid fuel and water to form an aqueous slurry. The slurry is transformed into droplets. The droplets are gas-dried to form particles comprising the oxidizer and the fuel, with the particles thus constituting a pyrotechnic delay composition.Type: ApplicationFiled: September 20, 2007Publication date: February 18, 2010Applicant: African Explosives LimitedInventors: Clifford Gordon Morgan, Craig Rimmington
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Patent number: 7638006Abstract: A fluorine gas generating material composition comprises a fluorine bearing material, the fluorine bearing material releasing fluorine gas at a first temperature, and a coruscative material, a reaction temperature of the coruscative material equal to or greater than the first temperature. In some embodiments, the fluorine bearing material is a nickel-based alloy and the coruscative material includes an element from Group IVB, VB or VIB of the periodic table or a transition metal and a carbon-based material. The fluorine gas generating material composition can be incorporated into a product such as a munition, a flare, a shape charge or an impulse device. The disclosed fluorine gas generating material composition can be used to produce work in applications and methods that include point delivery of fluorine gas, explosives related applications, aerospace applications, and applications in the fields of mining and drilling.Type: GrantFiled: August 23, 2004Date of Patent: December 29, 2009Assignee: Lockheed Martin CorporationInventor: James R. Wood