Miscellaneous Compositions Patents (Class 149/109.4)
  • Patent number: 10290404
    Abstract: An apparatus and method for magnetic particle manipulation enables the particle to be rotated and translated independently using magnetic fields and field gradients, which produce the desired decoupled translational and rotational motion. The apparatus and the method for manipulation may be implemented in parallel, involving many particles. The rotational magnetic field used to induce rotational motion may be varied to induce particle motion, which is either in phase or out of phase with the rotational magnetic field. The magnetic fields and gradients described herein may be generated with permanent magnets, electromagnets, or some combination of permanent magnets and electromagnets.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 14, 2019
    Assignee: Weinberg Medical Physics, Inc.
    Inventors: Lamar Odell Mair, Aleksandar Nelson Nacev, Irving N. Weinberg
  • Patent number: 9963651
    Abstract: A method to generate cyclic hydrocarbons from farnesene to increase both the density and net heat of combustion of the product fuels.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 8, 2018
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Benjamin G Harvey
  • Patent number: 8992707
    Abstract: 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 material at nanoscale.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: March 31, 2015
    Assignee: Institute Franco-Allemand de Recherches de Saint-Louis
    Inventors: Marc Comet, Denis Spitzer, Vincent Pichot
  • Patent number: 8986630
    Abstract: Provided is a gas-generating material which can generate a gas in a large amount per unit time and has high storage stability. The gas-generating material 11a according to the present invention comprises a gas-generating agent that is an azo compound or an azide compound, a tertiary amine, a photosensitizing agent and a binder resin.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 24, 2015
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Yoshinori Akagi, Shigeru Nomura
  • Patent number: 8980023
    Abstract: A gas generating pyrotechnic composition that in addition to a primary fuel component and a primary oxidizer component includes critical relative amounts of elemental carbon and cupric oxide. Also provided are associated methods for producing an inflation gas for an occupant restraint system of a motor vehicle.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 17, 2015
    Assignee: Autoliv ASP, Inc.
    Inventor: Gary K. Lund
  • Patent number: 8932417
    Abstract: Methods and systems for mixing propellant formulations are disclosed herein. In one embodiment, a method of mixing a solid propellant formulation includes placing a first component (e.g., a polymer or fuel) and a second component (e.g., an oxidizer of suitable particle size) in a mix vessel. The method further includes mixing the first and second components together by rotating the mix vessel about a first axis and, during at least a portion of the vessel rotation, revolving the vessel about a second axis spaced apart from the first axis. In one embodiment, the first axis can be a vessel spin axis, and the second axis can be spaced apart from the first axis so that the vessel revolves about the second axis in a planetary manner. In another embodiment, the vessel can rotate about the first axis in a first direction while revolving about the second axis in a second direction, opposite to the first direction.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 13, 2015
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: Robert Nicholas Renz, James Lemister, Steven Ray Johnson, Ralph Chengkung Hsiao
  • Patent number: 8911575
    Abstract: Moldable explosives containing chlorinated and/or fluorinated oils and waxes are described which exhibit significant energetic characteristics while at the same time possessing desirable IM character. Such moldable explosives are potential replacements for the C4 compositions known and used in the art.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 16, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Anthony R. Di Stasio, Sanjeev K. Singh, Daniel Zaloga, Rajen Patel
  • Patent number: 8888936
    Abstract: A powdery pyrotechnic mixture is proposed that comprises a binary or ternary inorganic oxidizing agent mixture composed of one or two metal oxides, a nitrate totaling 50.0% by weight to 85.0% by weight, an elementary inorganic fuel or a mixture of elementary inorganic fuels totaling 15.0% by weight to 40.0% by weight, a stabilized nitrocellulose or a nitrocellulose-based propellant powder from 0.0% by weight to 25.0% by weight, graphite from 0.0% by weight to 5.0% by weight as well as. Optionally. a further processing aid from 0.0% by weight to 5.0% by weight. The powdery pyrotechnic mixture excels in that it contains no chlorate-containing compound and/or perchlorate-containing compound as an oxidizing agent and no sulfur or a sulfur-containing compound as fuel. The proposed pyrotechnic mixture is used in pyrotechnic objects and ammunition for the production of a bang-effect and/or flash effect.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: November 18, 2014
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventors: Julia Strenger, Dirk Cegiel, Christopher Zimmermann
  • Patent number: 8808476
    Abstract: Compositions and methods relate to gas generants used in inflatable restraint systems. The gas generant grains include a fuel mixture having at least one fuel and at least one oxidizer, which have a burn rate that is susceptible to pressure sensitivity during combustion. The gas generant composition further includes a plurality of pressure sensitivity modifying glass fiber particles distributed therein to lessen the pressure sensitivity and/or to increase combustion stability of the gas generant. Such gas generants can be formed via spray drying techniques.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 19, 2014
    Assignee: Autoliv Asp, Inc.
    Inventors: Ivan V. Mendenhall, Gary K. Lund
  • Patent number: 8795451
    Abstract: A propellant for guns includes at least one energy carrier, nitrocellulose and cellulose acetate butyrate. At least part of the nitrocellulose is alcohol-soluble nitrocellulose. The nitrocellulose serves as a binder and for that purpose is present in a concentration of at least 15% by weight in the propellant. A process for producing a propellant is also provided.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: August 5, 2014
    Assignee: Diehl BGT Defence GmbH & Co. KG
    Inventors: Dietmar Müller, Walter Langlotz
  • Patent number: 8784585
    Abstract: A gas generator 10 includes an autoignition composition that contains an alkali metal chlorate such as potassium chlorate as an oxidizer, a carboxylic acid such as DL-tartaric acid as a fuel, and a desiccant in operable communication therewith. Gas generating systems 180 such as vehicle occupant protection systems 180, containing the gas generator 10, are also provided.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: July 22, 2014
    Assignee: TK Holdings Inc.
    Inventors: Sean P. Burns, Deborah L. Hordos, Jason Newell
  • Patent number: 8784584
    Abstract: Perchlorate-free flare compositions are disclosed which, when burned, produce yellow smoke and flames. Methods of producing the compositions are also disclosed.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 22, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Christina M. Yamamoto, Robert G. Shortridge
  • Patent number: 8778103
    Abstract: Methods of forming energetic compositions include forming a premix comprising a nitrate ester, a polymer, and a stabilizer, and combining solids with the premix. Additional stabilizer may be added with the solids and may remain in a crystalline state. Some methods include dissolving a stabilizer in at least one of a plurality of nitrate esters. Energetic compositions include a continuous matrix and a stabilizer. The continuous matrix includes a nitrate ester and surrounds a solid energetic material. Some compositions include a first nitrate ester, a second nitrate ester having a decomposition rate lower than the first nitrate ester, and a stabilizer. An article includes a housing and an energetic composition in the housing.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: July 15, 2014
    Assignee: Alliant Techsystems Inc.
    Inventors: John R. Moser, Jr., Richard L. Raun, David D. Shaw
  • Patent number: 8728259
    Abstract: An inflator 10 is provided whereby the interstitial cavities found within the inflator 10 are packed with one or more decomposition additives 26 that decompose in the presence of heat. As such, the decomposition additives 26 fluidly and/or conductively communicate with the hot gases generated upon activation of the inflator 10. As the decomposition additive 26 decomposes, heat may be mitigated while resultant gaseous decomposition products are liberated.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 20, 2014
    Assignee: TK Holdings Inc.
    Inventors: Deborah L. Hordos, Slaven Domazet, Brian A. Mayville
  • Patent number: 8721813
    Abstract: 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: Grant
    Filed: January 9, 2012
    Date of Patent: May 13, 2014
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Christian Clausen, III, Cherie Geiger, Michael Sigman, Rebecca Fidler
  • Patent number: 8708367
    Abstract: A gas generator for a safety device for a motor vehicle, comprises at least two distinct chambers which communicate with each other through at least one opening or nozzle. A first chamber is isolated from the outside. A second chamber or “diffusion” chamber is able to receive gases generated by the combustion of a solid pyrotechnical charge placed in the first chamber, and to discharge them towards the outside. The solid charge is a mixture consisting of at least one oxidizing charge and a reducing charge, the oxygen balance of which is equilibrated. A heat generator is provided which generates sufficient heat for triggering and sustaining the combustion of the charge without any other interaction, notably of the chemical type, between the heat generator and the charge.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: April 29, 2014
    Assignee: Seva Technologies
    Inventors: Daniel Duvacquier, Xavier Lelievre, Yvonnig Patton, François Peremarty
  • Patent number: 8696838
    Abstract: A method of manufacture of foamed celluloid molded products, involving three steps for the manufacture of higher density (0.7 to 1.25 gm/cc) foamed celluloid products or simple geometry lower density (0.2 to 0.7 gm/cc) foamed celluloid products, and four steps for the manufacture of lower density foamed celluloid products of any geometry. The three step process involving: (1) providing small, uniform, pieces of celluloid; (2) presoaking the pieces in a physical blowing agent (PBA) under pressure; and (3) foaming at raised temperature a controlled quantity of the presoaked pieces in a mold—to obtain the desired shape and density. For a lower density foamed celluloid product, of any moldable geometry, the steps are to: (1) small pieces of celluloid, that (2) have been presoaked in a PBA, are (3) pre-expanded to an intermediate density, and then (4) foam the desired lower density foamed product in a mold at raised temperature.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: April 15, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Niloufar Faridi, Linjie Zhu, Ming-Wan Young, Costas G. Gogos, Fei Shen, Elbert Caravaca, Mohamed Elalem, Viral Panchal, Dale Conti
  • Patent number: 8696837
    Abstract: The present invention is directed to an explosive composition comprised of heavy ANFO and expanded polymeric beads that have a density that is less than the density of the heavy ANFO. The expanded polymeric beads have a size that is determined or based on the size of ammonium nitrate prills used in the heavy ANFO portion of the composition. In one embodiment, the expanded polymeric beads that are utilized in the composition are at least 70% of the lower limit of the mesh size of the predominant ammonium nitrate prill mesh size. In another embodiment, the expanded polymeric beads are at least 70% of the a size that is related to the average mesh size of the ammonium nitrate prills.
    Type: Grant
    Filed: October 10, 2010
    Date of Patent: April 15, 2014
    Inventor: Kevin H. Waldock
  • Patent number: 8685187
    Abstract: Disclosed are thermite charges for use in well perforation and downhole fracing. The thermite charges have a core, and optionally a case, where at least one of the core and the case includes thermite material.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 1, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Hongfa Huang
  • Patent number: 8685186
    Abstract: A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than dimethylaminoethylazide (DMAZ) and other potential reduced toxicity replacements for MMH.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: April 1, 2014
    Assignee: CFD Research Corporation
    Inventor: Debasis Sengupta
  • Patent number: 8657974
    Abstract: A gas generator 10 includes an auto-ignition/booster composition 212 that contains a metal chlorate such as potassium chlorate as an oxidizer, a carboxylic acid such as DL-tartaric acid as a primary fuel, a secondary oxidizer such as strontium nitrate, and if desired, a secondary fuel such as 5-aminotetrazole. The auto-ignition/booster composition 212 and a separate provision of ammonium nitrate or phase stabilized ammonium nitrate 228 are provided within a single combustion/decomposition chamber 222 for the production of gas, upon actuation of the gas generator 10. Vehicle occupant protection systems 180, containing the gas generator 10, are also provided.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 25, 2014
    Assignee: TK Holdings, Inc.
    Inventors: Brian A. Mayville, Deborah L. Hordos, Graylon K. Williams
  • Patent number: 8647451
    Abstract: A method of manufacturing an explosive testing agent is disclosed. The method includes synthesizing hydrogen bronze nanoparticles and placing the nanoparticles on a test platform.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: February 11, 2014
    Assignee: The Board of Regents for Oklahoma State University
    Inventors: Allen Wallace Apblett, Nicholas Ferdinand Materer
  • Patent number: 8641843
    Abstract: The present invention provides a simulant material comprising a primary explosive and a carrier.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: February 4, 2014
    Assignee: Rafael, Advanced Defense Systems Ltd.
    Inventors: Shulman Hagit, Yael Cohen-Arazi, Edith Sokol, Moshit Yaskin-Harush
  • Patent number: 8641842
    Abstract: Propellant compositions include an energetic binder, such as nitrocellulose, and a stabilized, encapsulated red phosphorous as a ballistic modifier. The propellant composition may additionally include an energetic plasticizer, such as nitroglycerine. For example, the propellant composition may be formed by mixing a double or multi base propellant that includes nitrocellulose plasticized with nitroglycerine with the stabilized, encapsulated red phosphorus. The propellant compositions may be substantially lead-free and may exhibit improved ballistic properties. Methods of forming such propellant compositions and an ordnance device including such propellant compositions are also disclosed.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 4, 2014
    Assignee: Alliant Techsystems Inc.
    Inventors: Matthew T. Hafner, Ruben Balangue, Danny D. Clark, John William Westbrook, III
  • Patent number: 8636860
    Abstract: An energetic ionic liquid catalytic decomposition gas generator uses stoichiometric and nonstoiciometric mixtures of specific energetic ionic liquids and iridium catalyst. The catalyst temperature used and gas production versus ignition may be controlled by combining one or more cationic species with one or more anionic species of the ionic liquid(s).
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: January 28, 2014
    Assignees: Streamline Automation, LLC, The University of Alabama
    Inventors: Roberto DiSalvo, H. Waite Dykes, Jr., Robin D. Rogers, Julia Shamshina, Marcin Smiglak
  • Patent number: 8632642
    Abstract: An explosive component includes a first storage container holding a fuel, a second storage container holding an oxidizer, a mixer to mix the fuel and the oxidizer together into an energetic mixture, and a third storage container to hold the energetic mixture.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: January 21, 2014
    Assignee: Raytheon Company
    Inventor: Ronald J. Butte
  • Patent number: 8632643
    Abstract: Embodiments of materials suitable for use as a replacement for Tetrazene and methods of preparing such materials are described. In one embodiment, the material comprises MTX-1, as well as simple salts or complexes derived therefrom. The methods of preparing such materials include combining Tetrazene and an acid to form a suspension, where the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid. A nitrite salt may be added to the suspension, where the nitrite salt is sodium nitrite, lithium nitrite, potassium nitrite, an aqueous solution of sodium nitrite, an aqueous solution of lithium nitrite, or an aqueous solution of potassium nitrite. In some embodiments, the suspension is stirred until the suspension has a white appearance.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: January 21, 2014
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: John W. Fronabarger, Michael D. Williams
  • Patent number: 8623156
    Abstract: An improved method for the production of pyrophoric materials which does not employ hot NaOH and produces pyrophoric materials on various types of ceramic, metal, nanomaterial substrates. The method impregnates the substrate materials with pyrophoric iron or other materials resulting in materials that are “tunable” with respect to its pyrophoric output as determined by its temperature, rise time sustenance etc through selective variation of particle size, morphology, and diluents or reactive materials.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: January 7, 2014
    Assignees: The United States of America as represented by the Secretary of the Army, South Dakota Board of Regents
    Inventors: Christopher Haines, Deepak Kapoor, Jan Puszynski, Rajesh Shende, Zac Doorenbos, Lori Groven
  • Patent number: 8617328
    Abstract: An economical, low residue, mortar increment propellant container manufactured of foamed celluloid, which is composed of 50 to 84% nitrocellulose, having a nitrogen content of from about 10.5 to about 13.5%, and about 15 to about 50% camphor. The burn rate of the foamed celluloid can be enhanced by the addition of energetic additives, such as energetic plasticizers.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: December 31, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Ming-Wan Young, Costas G. Gogos, Niloufar Faridi, Linjie Zhu, Peter Bonnett, Howard Shimm, Elbert Caravaca, Joseph Palk, Jr.
  • Patent number: 8617327
    Abstract: The present invention is an electrically controlled propellant comprising a binder, an oxidizer, and a cross-linking agent. The boric acid (the cross-linking agent) has been found to function as a cross-linking agent for the high molecular binder used to make the propellant, thereby improving the composition's ability to withstand combustion without melting. The present invention also may include 5-aminotetrazole (5-ATZ) as a stability-enhancing additive. The binder of the present invention may include polyvinylalcohol (PVA) and/or the co-polymer of polyvinylalcohol/polyvinylamine nitrate (PVA/PVAN).
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 31, 2013
    Assignee: Digital Solid State Propulsion LLC
    Inventors: Arthur Katzakian, Charles Grix
  • Patent number: 8617326
    Abstract: Advanced bipropellant fuels with fast ignition upon mixing with storable oxidizer (N2O4, nitric acid) have been synthesized and demonstrated. The bipropellant fuels are based upon salts containing dicyanamide or tricyanomethanide anions and employ at least two hydrazine functionalities in the cations.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: December 31, 2013
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Stefan Schneider, Tommy W. Hawkins, Michael S. Rosander
  • Patent number: 8608879
    Abstract: The present invention is a flare illuminant composition, useful in hand-held signals, which composition is environmentally friendly and economical, containing a commercially available, aromatic, high energy, amine-based organic compound, 5-aminotetrazole, in place of the conventional and toxic KClO4, or, for the known alternative to KClO4, expensive, strontium bis-(1-methyl-5-nitriminotetrazolate)monohydrate.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 17, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Jesse J. Sabatini, Gary Chen, Amita Nagori, Reddy Damavarapu
  • Patent number: 8603271
    Abstract: Method and device for mixing and initiating a pyrotechnic charge, comprising at least one coherent porous fuel structure (16) and at least one oxidizer (8). According to the invention, the coherent porous fuel structure (16) and the oxidizer (8) are placed apart in a mixing device (1, 20) to prevent unintentional ignition, and in which the oxidizer (8), in response to the action of a force upon the mixing device (1, 20), for example upon firing of an artillery shell, is transported into the coherent porous fuel structure (16), after which the obtained pyrotechnic charge is initiated after a set time delay.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 10, 2013
    Assignee: BAE Systems Bofors AB
    Inventors: Mats Runemard, Christian Vieider
  • Patent number: 8603270
    Abstract: The present invention provides a method of using a neutral ionic liquid to at least one of stabilize a peroxidic explosive and to produce a stable solution of the peroxidic explosive which includes providing the neutral ionic liquid and using the neutral ionic liquid to at least one of stabilize the peroxidic explosive and to produce the stable solution of the peroxidic explosive. The present invention further provides a stable composition which includes a solution of at least one neutral ionic liquid and a detectable amount of a peroxidic explosive, a method of production thereof, and a method of use thereof as an odor sample.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: December 10, 2013
    Assignees: Rheinische Friedrich-Wilhelms-Universitaet Bonn, Diehl BGT, Defence GmbH & Co. KG
    Inventors: Siegfried Waldvogel, Carsten Siering, Daniel Lubczyk, Joerg Loebau, Arno Hahma
  • Patent number: 8597444
    Abstract: By using generally known chemically, physically, or a combination thereof, means to foam celluloid, a foamed celluloid material is invented with a density of less than about 1.25 gm/cm3, which material is relatively low cost, very fast burning, very low residue, easily moldable, and which material exhibits good mechanical strength, and provides a good water barrier. These characteristics make this foamed celluloid a preferred choice for military artillery propellant charge bags, military mortar and civilian fireworks increment charges, combustible cartridges, flare housings, igniter tubes, as well as, closure disks, combustible enclosures and components thereof, among other applications.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 3, 2013
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ming-Wan Young, Costas G. Gogos, Niloufar Faridi, Linjie Zhu, Peter Bonnett, Howard Shimm, Elbert Caravaca, Joseph Palk, Jr., Dale Conti, Mohamed Elalem, Fei Shen
  • Patent number: 8597445
    Abstract: 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: Grant
    Filed: February 1, 2012
    Date of Patent: December 3, 2013
    Assignee: RA Brands, L.L.C.
    Inventors: Donald A. Pile, Henry J. John, Jr.
  • Patent number: 8591676
    Abstract: A thermite composition includes at least one composite particle having a convoluted lamellar structure having alternating metal oxide layers including a metal oxide and metal layers including a metal capable of reducing the metal oxide. The metal oxide layers and metal layers both have an average thickness of between 10 nm and 1 ?m. Molar proportions of the metal oxide and metal is within 30% of being stoichiometric for a thermite reaction.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: November 26, 2013
    Assignees: University of Central Florida Research Foundation, Inc., Lockheed Martin Corporation
    Inventors: Kevin R. Coffey, Edward Dein, Dickson Hugus, Edward Sheridan
  • Patent number: 8585839
    Abstract: A large-scale synthetic method that enables the preparation of nanoenergetic composites in kilogram scales which forms superior materials as compared to the ultra-sonicated nanoenergetic composites and at a lower cost for use in explosive, pyrotechnic, agent defeat, ammunition primers, and propellant applications.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: November 19, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Kelvin T. Higa
  • Patent number: 8585840
    Abstract: A process for recovering the energetic component from plastic bonded explosives. The process uses high velocity kinetic energy in the form of gases, liquids, or solids, alone or in combination, to cause the structural failure of the adhesive bonding between the polymer matrix and energetic component for the purpose of providing adequate loci for the solvation of the energetic component by appropriate solvents.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: November 19, 2013
    Assignee: G.D.O., Inc.
    Inventors: Paul L. Miller, Steve J. Schmit
  • Patent number: 8585841
    Abstract: Systems and methods for chemoremediation or mechanical destruction of undetonated explosive materials. An explosive apparatus contains an explosive material in close proximity to a chemical reagent selected for its chemoremediative properties. A barrier is interposed between the explosive material and the chemical reagent to delay the chemoremediation of the explosive material. Alternatively a water expandable material may be incorporated into the explosive material, whereby upon exposure to moisture the water absorbing material will expand sufficiently to fragment the explosive material into initiation insensitive particles. Initiation insensitivity is achieved by incorporation of water, which acts as a desensitizing agent as well as fragmenting the explosive material into particles sufficiently small that they are below the critical diameter for explosive initiation.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: November 19, 2013
    Assignee: MaxamCorp Holding S.L.
    Inventors: Carl Hermanus Lubbe, Delana Harris, José Manuel Botija González, Fernando María Beitia Gómez De Segura
  • Patent number: 8580054
    Abstract: In one embodiment, a melt-castable energetic material comprises at least one of: 3,5-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DNFO), and 3-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (ANFO). In another embodiment, a method for forming a melt-castable energetic material includes reacting 3,5-bis(4-amino-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DAFO) with oxygen or an oxygen-containing compound to form a mixture of at least: DNFO, and ANFO.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: November 12, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Philip F. Pagoria, Mao X. Zhang
  • Patent number: 8568542
    Abstract: Perchlorate-free flare compositions are disclosed which, when burned, produce yellow smoke and flames. Methods of producing the compositions are also disclosed.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 29, 2013
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Christina M. Yamamoto, Robert G. Shortridge
  • Patent number: 8563316
    Abstract: The present disclosure describes simulants and methods of production thereof that imitate characteristics of known explosives, including characteristics at the microscopic and macroscopic level. For instance, the present disclosure includes a simulant with the same texture, granularity, bulk density, particle density, and porosity of a known explosive. The simulants described herein provide the macroscopic bulk physical properties and the microscopic scale properties of actual explosives.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 22, 2013
    Assignee: U.S. Department of Homeland Security
    Inventors: Stephen Francis Duffy, Stephen Joseph Goettler, III, Ronald Arthur Krauss
  • Patent number: 8562768
    Abstract: The main subject of the present invention are solid compounds capable of generating hydrogen by a self-sustaining combustion reaction. Their composition comprises borazane and/or polyaminoborane and at least one inorganic oxidant, advantageously chosen from ammonium nitrate, alkali metal nitrates, alkaline-earth metal nitrates, metal nitrates, metal oxides, oxidants of the family of dinitramines and mixtures thereof. It also relates to the generation of hydrogen by self-sustaining combustion of at least one such compound.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: October 22, 2013
    Assignee: Herakles
    Inventors: Pierre Yvart, Joel Renouard, Helene Blanchard, Hugues Rocton
  • Patent number: 8551268
    Abstract: Improved electric primer compositions, structures, and methods that are compatible with existing munitions and in particular an exemplary electric primer composition including carbon nanotubes along with energetic primer mixture(s) and an exemplary primer structure including layers of energetic materials wherein a layer exhibiting the most energetic character is positioned proximate to a primer button. Alternative embodiments include both conductive and non-conductive layers.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: October 8, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Rao Yalamanchili, John Hirlinger, Christopher Csernica
  • Patent number: 8545646
    Abstract: The present disclosure relates to a high-density rocket propellant and associated recoilless launching systems and methods with tungsten powder added providing substantial mass to the propellant for additional impulse, absorption of sound, optimization of back blast and carry weight, and the like. In an exemplary embodiment, the high-density rocket propellant includes tungsten mass percentages of between about 70%-about 80%, equivalent to about 17%-about 26% by volume.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: October 1, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Matthew J. Sanford, Randolph T. Johnson, Paul G. Wallman, Diana O. Bragunier, Stephen N. Stiles
  • Patent number: 8540828
    Abstract: A primer composition that includes red phosphorus having an acid scavenger and a polymer thereon. The primer composition includes at least one other component that is substantially free of lead. The other component is at least one oxidizer, or at least one oxidizer and at least one of at least one secondary explosive composition and at least one energetic binder. The primer composition optionally includes at least one element having an ionic charge to ionic radius ratio of 4 or of 8, such as magnesium, zirconium, aluminum, silicon, titanium, tungsten, alloys thereof, and combinations thereof. The red phosphorus and the at least one oxidizer are present in the primer composition at approximately stoichiometric amounts. An ordnance element including the primer composition is also disclosed.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 24, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Randall T. Busky, Tod R. Botcher, Joel L. Sandstrom, Jack A. Erickson
  • Patent number: 8540829
    Abstract: An electrically initiated security device includes a first energetic sheet, a second energetic sheet, and a corrugated energetic sheet disposed between the first energetic sheet and the second energetic sheet. A first surface of the corrugated energetic sheet defines at least one channel and a second surface of the corrugated energetic sheet defines at least one channel. The electrically initiated security device further includes a first constituent portion disposed in the at least one channel defined by the first surface and a second constituent portion disposed in the at least one channel defined by the second surface. The first constituent portion and the second constituent portion, when mixed, comprise an energetic material.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: September 24, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Toby D. Thomas, James Horning
  • Patent number: 8524019
    Abstract: Embodiments of materials suitable for use as a replacement for Tetrazene and methods of preparing such materials are described. In one embodiment, the material comprises MTX-1, as well as simple salts or complexes derived therefrom. The methods of preparing such materials include combining Tetrazene and an acid to form a suspension, where the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid. A nitrite salt may be added to the suspension, where the nitrite salt is sodium nitrite, lithium nitrite, potassium nitrite, an aqueous solution of sodium nitrite, an aqueous solution of lithium nitrite, or an aqueous solution of potassium nitrite. In some embodiments, the suspension is stirred until the suspension has a white appearance.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: September 3, 2013
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: John W. Fronabarger, Michael D. Williams
  • Patent number: 8524018
    Abstract: A primer composition that includes stabilized, encapsulated red phosphorus, at least one oxidizer, at least one secondary explosive composition, at least one light metal, and at least one acid resistant binder. The stabilized, encapsulated red phosphorus may include particles of red phosphorus, a metal oxide coating, and a polymer layer. The metal oxide coating may be a coating of aluminum hydroxide, bismuth hydroxide, cadmium hydroxide, cerium hydroxide, chromium hydroxide, germanium hydroxide, magnesium hydroxide, manganese hydroxide, niobium hydroxide, silicon hydroxide, tin hydroxide, titanium hydroxide, zinc hydroxide, zirconium hydroxide, or mixtures thereof. The polymer layer may be a layer of epoxy resin, melamine resin, phenol formaldehyde resin, polyurethane resin, or mixtures thereof. A percussion cap primer that includes the primer composition, a tertiary explosive composition, and a cup is also disclosed, as are ordnance devices including the primer composition.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: September 3, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Randall T. Busky, Tod R. Botcher, Joel Sandstrom, Jack Erickson