Processes Of Making Patents (Class 149/109.6)
  • Patent number: 10287218
    Abstract: A method of additively manufacturing propellant elements, such as for rocket motors, includes partially curing a propellant mixture before extruding or otherwise dispensing the material, such that the extruded propellant material is deposited on the element in a partially-cured state. The curing process for the partially-cured extruded material may be completed shortly after the material is put into place, for example by the material being heated at or above its cure temperature, such that it finishes curing before it fully cools. The propellant material may be prepared by first mixing together, a fuel, an oxidizer, and a binder, such as in an acoustic mixer. After that mixing a curative may be added to the mixture. The propellant mixture may then be directed to an extruder (or other dispenser), in which the mixture is heated to or above a cure temperature prior to the deposition, and then deposited.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Matthew H. Summers, Jeremy C. Danforth, David G. Garrett, Mark T. Langhenry
  • Patent number: 10227266
    Abstract: This invention relates to detonator-sensitive assembled booster charges for use in blasting engineering. The booster charge comprises nitroalkane and a cavity-forming agent.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: March 12, 2019
    Assignee: EST ENERGETICS GMBH
    Inventors: Jürgen Klunker, Konrad Ziegler
  • Patent number: 10226745
    Abstract: Provided is an emulsion matrix ground station with intrinsic safety, which relates to the technical field of emulsion matrix preparation process and apparatus of mobile ground auxiliary equipment in civil explosive industry. The emulsion matrix ground station may include a water phase tank, an oil phase tank, a water phase pump, an oil phase pump and a static emulsification device. The water phase pump may have an inlet connected to an outlet of the water phase tank by a pipeline, and an outlet connected to a water phase inlet of the static emulsification device by a pipeline. The oil phase pump may have an inlet connected to an outlet of the oil phase tank by a pipeline, and an outlet connected to an oil phase inlet of the static emulsification device by a pipeline.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: March 12, 2019
    Assignee: SHIJIAZHUANG SUCCESS MACHINERY ELECTRICAL CO., LTD.
    Inventor: Qiuming Tang
  • Patent number: 10222190
    Abstract: A truck for loading emulsion explosive in field with intrinsic safety, with its key improvement being a static emulsification device and a static sensitizing device to perform emulsification and sensitization, wherein, an outlet of the static emulsification device is connected with a transporting hose, a terminal end of a sensitizer storage transporting system is connected to a starting end of the transporting hose, and the static sensitizing device is arranged at a terminal end of the transporting hose. Its advantages include the transporting of emulsion explosive product is avoided, thereby reducing safety risk; on the other hand, the emulsification device and sensitizing device utilized by this truck both have static structure, so that there exists no shear or mechanical friction during the emulsification and sensitizing process, thereby reducing sensitivity, preventing explosion form happening in the production process, and ensuring production safety.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 5, 2019
    Assignee: SHIJIAZHUANG SUCCESS MACHINERY ELECTRICAL CO., LTD.
    Inventor: Qiuming Tang
  • Patent number: 10166515
    Abstract: A method and device of preparing an emulsion comprising a first liquid and a second liquid, said method comprising the step of dispersing the first liquid into the second liquid, characterized in that the method comprises:—passing the first liquid through an injection nozzle (108) for creating a spray of droplets of the first liquid, and—injecting thus created droplets of first liquid into the second liquid such that Q, where Q is equal to the square of the speed of the droplets, is at least 225 m2/s2; wherein W, wherein W is sg*Q*d divided by St with sg being the specific gravity of the first liquid in kg/m3, d being the mean Sauter droplet diameter in meter of the spray leaving the injection nozzle in air, and St being the surface tension of the first liquid in Newton/meter; is at least 250 kg*m/N*s2.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 1, 2019
    Assignee: OCRI B.V.
    Inventors: Wilko Karel Anthonius Pels, Oebele Herman Bruinsma
  • Patent number: 10106473
    Abstract: Provided herein are VIS-IR powders comprising tin which show significantly higher visual intensity, reduced reaction temperature and particle temperature during and after oxidation reaction in air, and improved resistance to clumping when compared to comparable powders without tin. Methods of preparation of said VIS-IR powders are also disclosed.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: October 23, 2018
    Assignee: Armtec Defense Products Co.
    Inventors: Radana Dmitrovic, Willie Edward Benjamin, III, Rachel Hendrika Newell
  • Patent number: 10106475
    Abstract: A method for converting cedarwood oil into high density fuels including, hydrogenating cedarwood oil in the presence of at least one hydrogenation catalyst to generate hydrogenated cedarwood oil, removing the hydrogenation catalyst from the hydrogenated cedarwood oil, purifying the hydrogenated cedarwood oil to produce a first high density fuel, isomerizing the first high density fuel in the presence of at least one acid catalyst to generate a hydrocarbon mixture including adamantanes, and distilling the adamantane mixture to produce a second alkyl-adamantane high density fuel.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: October 23, 2018
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Benjamin G. Harvey, Kale Warren Harrison
  • Patent number: 9975769
    Abstract: A method for processing of expired solid rocket propellant containing ammonium perchlorate, powdered aluminum, and a rubber-based binder for the purpose of recycling ammonium perchlorate, the method comprising: a) wet disintegration of solid propellant in a solution to produce a suspension of solid substances; b) leaching of the suspension of solid substances at an increased temperature in a leaching solution to produce an ammonium perchlorate solution, the leaching solution including at least one of water and unsaturated ammonium perchlorate and containing added inert material based on at least one of porous carbon, diatomaceous earth and a polymer; c) wherein the use of the inert material during the leaching process increases de-agglomeration and decreases re-agglomeration of solid substances of the suspension of solid substances; d) separation of the ammonium perchlorate solution from the suspension of solid substances, the separated ammonium perchlorate solution also containing at least some of the inert
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 22, 2018
    Assignee: ERUCA TECHNOLOGIES S.R.O.
    Inventors: Martin Soucek, Michal Cernoch, Jan Kupka, Jan Mysik
  • Patent number: 9969905
    Abstract: Certain aspects of the invention provides a transient liquid phase (TLP) bonding structure, including Ni based alloys and a TLP bonded layer formed by pack cementation on the Ni based alloys using a pack composition. In one embodiment, the pack composition includes 57 wt. % of aluminum oxide powder, 30 wt. % of Ti powder, 10 wt. % of Ni-50 wt. % Al alloy powder and 3 wt. % of ammonium chloride powder. The Ni based alloys may be Ni-20 wt. % Cr alloys. In certain embodiments, pack cementation is performed on the Ni based alloys under argon for an hour using the pack composition to form a coating. Then the structure is sonicated in acetone for 2 hours, and then annealed under vacuum at about 1200° C. for 2 days to form the TLP bonding structure, which has a uniform ?? phase distribution with identical compositions and properties at its bonding regions.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: May 15, 2018
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: David C. Dunand, Dinc Erdeniz
  • Patent number: 9790137
    Abstract: A method of manufacturing a CL-20/HMX cocrystalline explosive which is coated in a polymeric binder, so as to be useful as an explosive molding powder. The cocrystalline material having a desirable average crystal size of from about 300 nm to about 1000 nm, which crystals are intimately coated with a polymeric binder and are produced as granular agglomerates that are less than on average 5 microns in size, and which crystals are relatively easy and safe to handle, transport, store and use. The method involving spray drying a CL-20 and HMX solvent solution containing a polymeric binder to form an intermediary amorphous material—which intermediary is then heated to cocrystallize the CL-20/HMX into the desired size cocrystals and aggregates thereof—which are coated in said polymeric binder.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: October 17, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Victor Stepanov, Reddy Damavarapu, Rajen Patel, Hongwei Qiu
  • Patent number: 9746300
    Abstract: A method of selectively increasing the sensitivity of an insensitive munition by inducing porosity or Joule heating in munitions assembly comprising a power source, an explosive apparatus and a fuze apparatus wherein the explosive apparatus contains a sensitized main explosive composition comprising a secondary explosive and a sensitizing agent. As a result, the otherwise insensitive munition is rendered sensitive to a propagating wave shock by approximately 10 to 25%. To this end, a voltage is applied across the main conductive explosive composition within the insensitive munition. Voltages above certain thresholds cause the decomposition of the explosive material or conductive binder, which leads to an increase in porosity, and therefore the shock sensitivity.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: August 29, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Paul Anderson, Alex Paraskos
  • Patent number: 9737886
    Abstract: Disclosed herein is a process and an apparatus for producing coated catalysts. A process of the present disclosure includes providing a composition containing a liquid and a catalytically active material and/or a precursor thereof in a stock vessel, providing a support material in a vessel which is rotatable about a longitudinal axis, transporting the composition from the stock vessel through a first conduit to a spray nozzle, transporting a propellant fluid through a second conduit to the spray nozzle, atomizing the composition and propellant fluid in the nozzle to produce an aerosol that flows into the vessel and impregnates the support material present therein, heating the vessel so the liquid present in the aerosol evaporates from the support material and the finely divided support material which has been treated with catalytically active material and/or a precursor thereof is dried, and discharging the vaporized liquid from the vessel.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: August 22, 2017
    Assignee: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
    Inventors: Oliver Noll, Guido Walther, Sigrid Evert, Andreas Martin
  • Patent number: 9731265
    Abstract: Method of processing and handling solids and mixtures capable of deflagration, in particular of processing materials capable of deflagration in the chemical and pharmaceutical industry, wherein the processing and handling is carried out in an environment under a reduced pressure of ?500 mbara and the processing and/or handling comprises one or more process steps selected from the group consisting of filtration, milling, sieving, mixing, homogenization, granulation, compacting, packaging, drying, storage and transport in a transport container and other steps in apparatuses having mechanical internals.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: August 15, 2017
    Assignee: BAYER AKTIENGESELLSCHAFT
    Inventors: Heinrich Morhenn, Steffen Salg
  • Patent number: 9682895
    Abstract: An effective, safe and economical method of manufacture of an insensitive high explosive molding powder usable as a booster HE. The method preferably involving the steps of adding a binder and a crystalline high explosive to water, grinding that suspension in a bead mill until the crystalline high explosive is nano-sized, and precipitating the binder and crystalline high explosive using a spray dryer. Alternatively, an aqueous suspension of the crystalline high explosive can be ground in the bead mill and the binder subsequently added, prior to spray drying. A fatty alcohol, water defoaming/dispersant/surfactant agent can be added to the dissolved binder/suspended crystalline high explosive, to aid in the manufacturability.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: June 20, 2017
    Assignee: The United State of America as Represented by the Secretary of the Army
    Inventors: Rajen B. Patel, Victor Stepanov, Ashok Surapaneni, Anthony DiStasio
  • Patent number: 9598324
    Abstract: The present application discloses a variety of improvements that enhance at least one of the mechanical, chemical/energetic, ballistic, or adhesive properties, of a class of ECPs, regardless of whether said ECPs are in solid phase or gels, singly or in combinations thereof.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: March 21, 2017
    Assignee: Digital Solid State Propulsion LLC
    Inventor: Michael D. McPherson
  • Patent number: 9458066
    Abstract: A process for producing an intermediate emulsion comprising an oxidizer solution, fuel and emulsifier, which process comprises the steps of: (a) mixing in a micromixer an oxidizer solution with a fuel blend comprising a fuel and an emulsifier so as to solubilize a portion of the oxidizer solution in the fuel blend to produce a precursor product; (b) mixing the precursor product obtained in step (a) using a micromixer in one or more successive stages in order to form the intermediate emulsion.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: October 4, 2016
    Assignee: ORICA INTERNATIONAL PTE LTD
    Inventors: Richard John Goodridge, Vladimir Sujansky, Ivan Junarsa, Kira McGrath
  • Patent number: 9441097
    Abstract: A rubber composition containing 100 parts by mass of a rubber component (A) comprising at least one rubber of natural rubber and synthetic diene base rubbers and 5 to 120 parts by mass of a low molecular weight aromatic vinyl compound-diene compound copolymer (B) having a weight average molecular weight (measured by gel permeation chromatography and reduced to polystyrene) of 1,000 to 300,000 and, wherein the copolymer (B) comprises 0 to 80% by mass of an aromatic vinyl compound and has a vinyl bond content of 0 to 80% by mass in the part of the diene compound, and has a cross-linkable functional group at an end. Further, tires produced by using the rubber composition are provided.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 13, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Shigeaki Matsuo
  • Patent number: 9193638
    Abstract: An environmentally safe, nontoxic energetic time delay composition useful in small diameter aluminum tubes (i.e., typical military delay housings), which provides desired delay propagation rates of from less than about 2 to about 38 mm/s through such delay housings—the compositions being compressed stoichiometric mixes of Ti and C powders; Ni and Al powders; a combination of Ti/C and 3Ni/Al powders; and a combination of Ti/C and Ni/Al powders, diluted with inert alumina.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: November 24, 2015
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Lori J. Groven, Eric J. Miklaszewski, Jay C. Poret, Anthony P. Shaw
  • Patent number: 9174887
    Abstract: A method of preparing heavy ANFO including loading high density ammonium nitrate into a hopper; feeding the high density ammonium nitrate into a mixing chamber; during the feeding step, injecting fuel into a high density ammonium nitrate feeding pipe, thereby obtaining ANFO; loading bulk emulsion into a hopper; gassing the bulk emulsion; feeding the gassed bulk emulsion into a same mixing chamber as the ANFO; and mixing the gassed bulk emulsion and the ANFO, thereby obtaining heavy ANFO.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 3, 2015
    Assignee: EXSA S.A.
    Inventors: Karl Maslo, Heberth Ruiz
  • 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: 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: 8936689
    Abstract: An insensitive crystalline high explosive molding powder, usable as a booster HE. The subject insensitive crystalline high explosive molding powder being manufactured by adding the crystalline high explosive, and a polymer or wax based binder to a solvent to form a solution, spray drying the solution to drive off the solvent, thereby co-precipitating the HE and binder to form granules in which the crystals of HE are uniformly distributed in the binder.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: January 20, 2015
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Victor Stepanov, Anthony DiStasio, Hongwei Qiu, Woo Lee
  • 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: 8927734
    Abstract: A batch reactor process for the synthesis of potassium 5,7-dinitro-[2,1,3]-benzoxadiazol-4-olate-3-oxide (KDNP) from 3-bromo-2,4,6-trinitroanisole (ETNA) includes adding BTNA to a reaction vessel containing potassium azide (KN3) and water (H2O). The resulting mixture is heated to 90° C. followed by cooling to room temperature and agitating the final solution. The precipitate KDNP product is recovered by filtration.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 6, 2015
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Patrick Caruana, Bradley Sleadd, John Fronabarger, Michael D. Williams
  • 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: 8894782
    Abstract: Reduced toxicity fuels containing hydrocarbons having both strained rings and internal, conjugated triple bonds are disclosed. The fuels described herein are hypergolic with nitrogen tetroxide and/or inhibited red fuming nitric acid.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: November 25, 2014
    Assignee: Wiley Organics, Inc.
    Inventors: Thomas A. Dobbins, David B. Wiley
  • Patent number: 8864923
    Abstract: A double base propellant modifier uses a combination of a lead component, a tin component and a copper component in physical contact to effect super-rate burning of double base propellants with defined plateau and mesa burning rate characteristics.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: October 21, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, Paul R. McCool
  • Patent number: 8845833
    Abstract: The invention is directed to a method for preparing a pyrotechnic composition, to the use of a water-soluble cellulose ether binder, to a pyrotechnic composition, to a method for preparing a pyrotechnic charge, and to a pyrotechnic charge. The method of the invention comprises mixing the fibrous nitrocellulose in wet form with the one or more water-soluble cellulose ether binders and optionally one or more solvents, wherein the amount of organic solvent in the mixture is 10 wt. % or less based on total weight of the mixture.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: September 30, 2014
    Assignee: Clearspark, LLC
    Inventors: Martijn Zebregs, Murk Pieter van Rooijen, Rutger Webb
  • Publication number: 20140261927
    Abstract: Gas generants comprising copper are provided that have improved slagging ability. In certain aspects, the gas generants include a fuel, an oxidizer comprising basic copper nitrate, and a large particle size endothermic slag-forming component, such as aluminum hydroxide (Al(OH)3). The gas generants may be cool burning, e.g., having a maximum flame temperature at combustion (Tc)?about 1,900K (1,627° C.). The disclosure also provides methods of enhancing slag formation for a gas generant composition that comprises copper. Such methods enhance slag formation during combustion of the gas generant composition by at least 50%.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: AUTOLIV ASP, INC.
    Inventors: Ivan V. Mendenhall, Bradley W. Smith
  • Patent number: 8834654
    Abstract: An adhesive may bond a plastic bonded explosive to a metal surface. The adhesive may include a mixture of hydroxyl-terminated polybutadiene (HTPB) and isophorone di-isocyanate (IPDI) in a weight ratio in the range of about 5 to 1 to about 10 to 1. The adhesive may include a solvent and/or a catalyst.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: September 16, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Edward A. Lustig, Jr.
  • Publication number: 20140238258
    Abstract: A colored pyrotechnic smoke-producing composition has an oxidizer, a fuel, a flame retardant, a dye, a coolant, and a binder. The oxidizer may be potassium chlorate. The fuel may be starch, dextrose, lactose, and/or sucrose. The coolant may be sodium bicarbonate or magnesium carbonate. The binder may be nitrocellulose or a halogen-free thermoplastic. The flame retardant may be one or more nitrogen-rich compounds. The composition may be in pelletized form or in the form of a solid charge. The composition may consist of on a mass basis oxidizer 20-35%, fuel 15-25%, flame retardant 5-15%, dye 27-40%, coolant 8-18%, and binder 1-2%. The invention may be a device consisting of a body filled with the composition and a first fire starter composition, and an attached squib igniter. The body may be a grenade. A process for producing the composition is also disclosed.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Inventor: Lucian Stoenescu
  • Patent number: 8815029
    Abstract: Compositions and methods relating to gas generants used in inflatable restraint systems. The gas generant grains formed via spray drying techniques of the present disclosure provide superior performance, including high burn rates and high gas yields. Further, processing of the gas generant grain products can be streamlined. Such gas generants include by way of non-limiting example, guanidine nitrate, basic copper nitrate, and a secondary oxidizer, such as potassium perchlorate.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 26, 2014
    Assignee: Autoliv ASP, Inc.
    Inventors: Gary K. Lund, Roger Bradford
  • Patent number: 8778105
    Abstract: The invention concerns copper azide containing carbon nanotubes. The invention also concerns methods of producing such nanotubes by placing CuO nanoparticles within carbon nanotubes to produce CuO-containing carbon nanotubes, contacting CuO-containing carbon nanotubes with hydrogen to produce reduced nanotubes; and contacting the reduced nanotubes with hydrazoic acid to produce copper azide containing carbon nanotubes.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 15, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Yury Gogotsi, Valarie Pelletier, Farhad Forohar, Magdy Bichay
  • Patent number: 8747581
    Abstract: The invention relates to the field of explosives, and more particularly relates to particles of an explosive, wherein they are in crystalline form, have a rounded shape and a majority of them contain no internal defect. Particles of an explosive in crystalline form include a volume fraction of closed pores of less than or equal to 0.05%. A method for preparing explosive particles includes preparing crystalline particles, a majority of which are without an internal defect; and rounding the crystalline particles.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 10, 2014
    Assignee: Institut Franco-Allemand de Recherches de Saint-Louis
    Inventor: Lionel Borne
  • Patent number: 8746145
    Abstract: A munition is described including a reactive fragment having an energetic material dispersed in a metallic binder material. A method is also described including forming a energetic material; combining the energetic material with a metallic 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: Grant
    Filed: June 18, 2012
    Date of Patent: June 10, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: George D. Hugus, Edward W. Sheridan, George W. Brooks
  • Patent number: 8729261
    Abstract: The present invention relates to a method for recrystallizing fine spherical cyclotrimethylenetrinitramine (Research Department Explosive, hereinafter, referred to as “RDX”) particles, and the method for recrystallizing fine spherical RDX particles according to the present invention may include (a) introducing a powder material containing RDX into a container, (b) introducing a dimethylether compressed gas into the container and dissolving the RDX to form a RDX solution, (c) releasing and decompressing the RDX solution into atmospheric pressure to form crystallized RDX particles, and (d) separating and collecting the RDX particles.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: May 20, 2014
    Assignee: Agency for Defense Development
    Inventors: Byoung-Min Lee, Youn-Woo Lee, Hyoun-Soo Kim, Joo-Seung Chae
  • 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: 8652277
    Abstract: A method forms a relatively stable ammonium nitrate composite material. The method includes (a) blending ammonium nitrate with an average particle diameter greater than about 1 mm and a substantially non-oxidizing compound in fine particle form; and (b) reducing the average size of said ammonium nitrate granules in the presence of the non-oxidizing compound in fine particle form to produce a substantially homogeneous blend of ammonium nitrate and the non-oxidizing compound having an average particle diameter of about 1 to about 1,000 ?m to form a substantially non-explosive powder.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 18, 2014
    Assignee: Honeywell International Inc.
    Inventors: Alan B. Levy, James A. Kweeder, Jose Carrazza, Kenneth D. Kunz
  • 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: 8636861
    Abstract: Secondary crystalline high explosives are disclosed which are suitable for filling very small volume loading holes in micro-electric initiators for micro-electro-mechanical mechanisms (MEMS), used as safe and arm (S&A) devices. The explosives are prepared by adding the such a high explosive to an aqueous first volatile mobile phase, adding such a high explosive to a non-aqueous second volatile mobile phase, mixing the first and second volatile mobile phases and then loading the combined phases into the MEMS device and allowing the aqueous and non-aqueous solvents to evaporate depositing the high explosive. Enhanced adhesion between the deposited high explosive and enhanced rheological properties can be obtained by adding a polymeric binder to both mobile phases.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: January 28, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Daniel Stec, III, Amy Wilson, Brian E. Fuchs, Neha Mehta, Paula Cook
  • 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: 8623157
    Abstract: An ANFO explosive composition includes a mixture of ammonium nitrate particles, an organic combustible fuel, and a chemical coupling agent having an aliphatic portion and an epoxy group. The chemical coupling agent may be selected from the group consisting of an epoxidized oil, an ester derivative of epoxidized oil and mixtures thereof. The use of such chemical coupling agents and a method of producing the ANFO explosive composition is also disclosed.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: January 7, 2014
    Assignee: ETI Canada Inc.
    Inventors: Ron Robeniol Legario, Ivana Alilovic
  • 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: 8608880
    Abstract: A method for the retraction of an explosive component from a high explosive, including the steps of loading a high explosive containing an explosive component into an striping down vessel; supplying a supercritical fluid to the striping down vessel; contacting the high explosive with the supercritical fluid at a temperature below the melting point of the explosive component and at a pressure sufficient to strip down the explosive component; and inducing a sonicating process on the striping down vessel simultaneously at a frequency of 2 MHz to 10 MHz.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 17, 2013
    Assignee: Tai Cham Technology Co. Ltd.
    Inventors: Jin-Shuh Li, Taso-Fa Yeh, Kai-Tai Lu, Yung-Ho Chiu, Shou-Hsiu Chen
  • 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
  • Publication number: 20130327456
    Abstract: A process for producing an intermediate emulsion comprising an oxidizer solution, fuel and emulsifier, which process comprises the steps of: (a) mixing in a micromixer an oxidizer solution with a fuel blend comprising a fuel and an emulsifier so as to solubilise a portion of the oxidizer solution in the fuel blend to produce a precursor product; (b) mixing the precursor product obtained in step (a) using a micromixer in one or more successive stages in order to form the intermediate emulsion.
    Type: Application
    Filed: August 12, 2011
    Publication date: December 12, 2013
    Applicant: ORICA INTERNATIONAL PTE LTD.
    Inventors: Richard John Goodridge, Vladimir Sujansky, Ivan Junarsa, Kira McGrath
  • Patent number: RE45318
    Abstract: A method for processing explosives containing a high loading of CL-20 may advantageously include a binder system having naphthenic oil and/or paraffinic oil. Solid energetic ingredients are added into the binder system and mixed to form a free-flowing suspension in which the solid energetic ingredients are homogeneously mixed and coated with the binder system. The binder system is then cured and cast to form a cross-linked explosive.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 6, 2015
    Assignee: Alliant Techsystems Inc.
    Inventor: Robert L. Hatch
  • Patent number: RE45440
    Abstract: A binary exploding target package, a process of forming an exploding target from the contents of the binary exploding target package, and the exploding target formed therefrom. The binary exploding target package includes a first, target container and a second container. An oxidizer composition is contained within one of the containers and a catalyst composition is contained within the other container. An exploding target is formed by mixing the oxidizer and catalyst compositions, and introducing the mixture into the target container to form an exploding target just prior to using the exploding target as a target for a shooting exercise.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 31, 2015
    Assignees: Tannerite Sports, LLC
    Inventor: Daniel Jeremy Tanner