Containing Free Metal Or Metal Hydride With Hydrocarbon Or Halogenated Hydrocarbon Patents (Class 149/87)
  • Patent number: 10538713
    Abstract: Disclosed herein is a fuel blend comprising a hydrocarbon based fuel; and particles that comprise magnesium and boron. Disclosed herein too is a method comprising blending a composition comprising a hydrocarbon based fuel and particles that comprise magnesium and boron to form a fuel blend.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: January 21, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Rhonda R. Willigan
  • Patent number: 9657549
    Abstract: Enhanced oil recovery techniques include introduction of alkali metal silicides into subterranean reservoirs to generate hydrogen gas, heat, and alkali metal silicate solutions in situ upon contact with water. The alkali metal silicides, such as sodium silicide, are used to recover hydrocarbons, including heavier crudes where viscosity and low reservoir pressure are limiting factors. Hydrogen, which is miscible with the crude oil and can beneficiate the heavier fractions into lighter fractions naturally or with addition of catalytic materials, is generated in-situ. It. Heat is also generated at the reaction site to reduce viscosity and promote crude beneficiation. The resulting alkaline silicate solution saponifies acidic crude components to form surfactants which emulsify the crude to improve mobility toward a production well. The silicate promotes profile modification passively via consumptive reactions or actively via addition of acidic gelling agents.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 23, 2017
    Assignee: SIGNA CHEMISTRY, INC.
    Inventors: Paul H. Krumrine, James S. Falcone, Michael Lefenfeld
  • Patent number: 9321854
    Abstract: This invention relates to organoaluminum compounds, to organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising an ion-exchange layered silicate, an organoaluminum compound, and a metallocene.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: April 26, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Gregory S. Day
  • Publication number: 20140182473
    Abstract: This invention relates to an apparatus for explosively dispersing particles of reactive metals into the atmosphere to form a fuel-air explosive. Also, this invention relates to a composition, which enhances the performance of metal augmented charge (MAC) devices. The metal augmented charge (MAC) includes flaked aluminum powder and polytetrafluorethylene. The MAC is pressed into solid billets. A preferred embodiment of the present invention involves a system with heavy-walled warhead, which comprises a canister and a cylinder of MAC disposed in the canister, so that said cylinder is in contact with the interior wall of the canister. Further, a high explosive is disposed in the cylinder with a fuze in direct contact with the high explosive, in such a way that the fuze detonates the high explosive.
    Type: Application
    Filed: March 7, 2003
    Publication date: July 3, 2014
    Inventors: George P. Dixon, Eddie R. Celestine, Will Carey Jr., Henry J. John Jr.
  • Publication number: 20140034197
    Abstract: The invention provides mechanically activated metal fuels for energetic material applications. An exemplary embodiment involves mechanically treating micrometer-sized particles of at least one metal with particles of at least one fluorocarbon to form composite particles containing the at least one metal and the at least one fluorocarbon.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 6, 2014
    Inventors: Travis R. SIPPEL, Steven F. Son, Lori J. Groven
  • 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
  • Patent number: 8465607
    Abstract: A method, and a related material, for utilizing high performance solid rocket propellants, which are molding powders. A propellant molding powder are selected to have a design burning rate and a tailored compaction profile. A morphology of a center-port of a rocket is selected for the design burn rate and a spin-rate. The molding powder is compacted isostatically around a core through application of triaxial pressure therein forming a solid rocket propellant charge with the selected center-port shape. The solid rocket propellant charge is placed in a cartridge or a case. The cartridge is selected from various types of cartridges and specialty charges. The solid rocket propellant molding powders are highly filled with metallic fuels, and have a binder in the range of 4% to 18%, which at least partially coats the surface of the molding powder.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 18, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: John M. Kelley
  • Patent number: 8374455
    Abstract: The original image composed of pixels representing a sample of the alloy, the hydrides being represented by groupings of pixels (21), the method comprises steps of processing the image (1, 2, 3, 4, 5) to obtain the skeleton of the groupings of pixels (21?) contained in the image, the skeletonization step (5) being followed by a step (6, 10) of analysis pertaining to the groupings thus skeletonised. The analysis step allows the determination of the hydrogen content as well as the morphological study of the hydrides so as to determine their danger.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 12, 2013
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Stéphane Allegre, Loïc Sachot, Olivier Rabouille
  • Patent number: 8361257
    Abstract: A laminated energetic device is disclosed. The laminated energetic device includes a low-gas generating energetic mixture, a core on which the low-gas generating energetic mixture is located, and a protective film for sealing the low-gas generating energetic mixture between the core and the protective film.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: January 29, 2013
    Assignee: NCC Nano, LLC
    Inventor: Kurt A. Schroder
  • Patent number: 8172964
    Abstract: 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: Grant
    Filed: December 5, 2008
    Date of Patent: May 8, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander E. Gash, Joe H. Satcher, Jr., Randall L. Simpson, Theodore F. Baumann, Marcus A. Worsley
  • Patent number: 8172963
    Abstract: 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: Grant
    Filed: October 16, 2008
    Date of Patent: May 8, 2012
    Assignee: NCC Nano, LLC
    Inventor: Kurt A. Schroder
  • Publication number: 20120090743
    Abstract: A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.
    Type: Application
    Filed: November 26, 2008
    Publication date: April 19, 2012
    Applicant: The Government of the United States of America as represented by the Secretary of the Navy
    Inventors: Albert Epshteyn, Andrew P. Purdy
  • Patent number: 8066831
    Abstract: A method of generating power uses a nanoenergetic material. The nanoenergetic material comprising thermite is obtained and deposited on a substrate. An igniter is placed on the nanoenergetic material. When power is desired, the nanoenergetic material is ignited. A transducer receives thermal, sonic, magnetic, optic and/or mechanical energy from combustion of the nanoenergetic material and converts it into electrical energy. Preferably, the transducer is a thermoelectric, piezoelectric or magneto device. Preferably, multiple transducers are integrated in one power generators to maximize the power from nanoenergetic thermites.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: November 29, 2011
    Assignee: The Curators of the University of Missouri
    Inventors: Shubhra Gangopadhyay, Steven Apperson, Keshab Gangopadhyay, Andrey Bezmelnitsyn, Rajagopalan Thiruvengadathan, Michael Kraus, Rajesh Shende, Maruf Hossain, Senthil Subramanian, Shantanu Bhattacharya, Yuangang Gao
  • Patent number: 8048242
    Abstract: 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: Grant
    Filed: April 5, 2007
    Date of Patent: November 1, 2011
    Assignee: Sandia Corporation
    Inventors: Alexander S. Tappan, Joseph Cesarano, III, John N. Stuecker
  • Patent number: 8007608
    Abstract: 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: Grant
    Filed: October 20, 2009
    Date of Patent: August 30, 2011
    Assignee: Kilgore Flares Co., LLC
    Inventors: David W. Herbage, Roy L. Neuhauser, Barry N. Smith
  • Patent number: 8002914
    Abstract: 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: Grant
    Filed: March 24, 2009
    Date of Patent: August 23, 2011
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Steven P. D'Arche, Travis Swanson
  • Patent number: 7998293
    Abstract: 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: Grant
    Filed: July 3, 2008
    Date of Patent: August 16, 2011
    Inventor: Paul Smith
  • Patent number: 7942988
    Abstract: A shaped, flexible fuel and energetic system is presented. The shaped, flexible fuel comprises at least one polymeric binding material and porous silicon particles dispersed throughout the polymeric binding material. The porous silicon particles are prepared from a metallurgical grade silicon powder. The shaped, flexible fuel preferably includes shapes such as: an article, a film, a wire and a tape. The energetic system comprises the shaped, flexible fuel portion used alone or in combination with at least one oxidizer.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: May 17, 2011
    Assignee: Vesta Research, Ltd.
    Inventors: Shanthi Subramanian, Declan Farrell, Santosh Y. Limaye
  • Patent number: 7887650
    Abstract: The present invention provides a gas generating composition comprising a fuel and an oxidizing agent and further a copper powder.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: February 15, 2011
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kenji Kitayama, Shogo Tomiyama
  • Patent number: 7857921
    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: March 2, 2006
    Date of Patent: December 28, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Randall T. Busky, Tod R. Botcher, Joel Sandstrom, Jack Erickson
  • Patent number: 7806999
    Abstract: 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: Grant
    Filed: October 15, 2001
    Date of Patent: October 5, 2010
    Inventor: Dennis Gordon Verity
  • Patent number: 7807000
    Abstract: 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: Grant
    Filed: October 25, 2004
    Date of Patent: October 5, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James J. Baker
  • Patent number: 7789981
    Abstract: A method to substantially desensitize a metastable intermolecular composite material to electrostatic discharge and friction comprising mixing the composite material with an organic diluent and removing enough organic diluent from the mixture to form a mixture with a substantially putty-like consistency, as well as a concomitant method of recovering the metastable intermolecular composite material.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: September 7, 2010
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: James R. Busse, Robert C. Dye, Timothy J. Foley, Kelvin T. Higa, Betty S. Jorgensen, Victor E. Sanders, Steven F. Son
  • Publication number: 20100096136
    Abstract: 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: Application
    Filed: February 18, 2008
    Publication date: April 22, 2010
    Inventors: Brian Bourne, Nathan G. Clark
  • Patent number: 7670446
    Abstract: 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: Grant
    Filed: April 19, 2005
    Date of Patent: March 2, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jan A. Puszynski, Magdy M. Bichay, Jacek J. Swiatkiewicz
  • Patent number: 7648602
    Abstract: A method for chemically neutralizing a nitroarene explosive uses a nitroarene hypergol having an ?,?-amine and an accelerant that is applied to the explosive composition to cause ignition of the explosive composition. The method may be used to neutralize active mines.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: January 19, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William M. Koppes, David M. Rosenberg, Kerry A. Clark, Eric S. Schlegel, Brian W. Vos, Jody W. Lang, Andrea D. Warren
  • Publication number: 20080245252
    Abstract: 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: Application
    Filed: February 11, 2008
    Publication date: October 9, 2008
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
  • Publication number: 20080245450
    Abstract: Glycerin-containing explosive compositions comprising at least an oxidizer and glycerin are provided. The explosive compositions may comprise a glycerin, such as impure or crude glycerin, modified crude glycerin, substantially pure glycerin or pure glycerin. The explosive compositions may comprise other combustible fuels such as fuel oil or carbonaceous material(s). The explosive compositions may be prepared on site, loaded in bulk on mobile platforms, and/or prepared and packaged in suitable containers.
    Type: Application
    Filed: July 27, 2007
    Publication date: October 9, 2008
    Applicant: BioEnergy Systems, LLC
    Inventors: Fortunato Villamagna, Bradley David Hall
  • Patent number: 6849247
    Abstract: A gas generating process, which is for the continuous production of energy and hydrogen for rocket and other propulsion and is also for the continuous production of hydrogen, utilizes the reaction of metallic materials, particularly aluminum, with organic materials, particularly hydrocarbons provided as jet fuel, and with water or an oxidizer which is predominantly water. In comparison with related reactions, the reaction produces hot gases containing more hydrogen and the products have a lower temperature for the same specific impulse. The process incorporates organic liquids with metallic powders to produce desirable, lower molecular weight exhaust gas products; and the increased hydrogen is desirable for use with a fuel cell and in connection with propulsion of a super-cavitating underwater device. The process is advantageous in that a metal, in powdered form, and a hydrocarbon liquid may be provided together as a slurry or gel for effective metering.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: February 1, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kerry L. Wagaman, Douglas J Elstrodt
  • Patent number: 6635130
    Abstract: A pyrotechnic active material for producing IR-radiation is proposed. An active material according to the invention contains fuel (preferably magnesium) which combines with fluorine in a strongly exergonic reaction (for example Li, Be, Mg, Ca, Sr, Ba, Ti, Zr, Hf, B, Al and alloys thereof) and poly-(carbon monofluoride) ((—CFx—)n) (x=0.6-1.2) as an oxidation agent. Compositions according to the invention further contain VITON® as a polymeric binding agent and graphite for reduction of the electrostatic sensitivity. A process for producing those compositions is also provided.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: October 21, 2003
    Assignee: Diehl Munitionssysteme GmbH & Co. KG
    Inventor: Ernst-Christian Koch
  • Publication number: 20030164215
    Abstract: Preferred embodiments of the present invention relate to rocket fuels comprising metal hydrides and poly-dicyclopentadiene (“poly-DCPD”). Although poly-DCPD also has physical and chemical properties that are compatible with being used as a rocket fuel in its own right, its primary function is as a binder for the metal hydride. Illustrative examples of metal hydrides include but are not limited to as aluminum hydrides, lithium hydrides, and lithium aluminum hydrides.
    Type: Application
    Filed: November 28, 2001
    Publication date: September 4, 2003
    Applicant: A.P.T. Aerospace, L.L.C.
    Inventors: Charles S. Woodson, Robert H. Grubbs, Ronald W. Humble
  • Patent number: 6383319
    Abstract: Preferred embodiments of the present invention relate to rocket fuels comprising metal hydrides and poly-dicyclopentadiene (“poly-DCPD”). Although poly-DCPD also has physical and chemical properties that are compatible with being used as a rocket fuel in its own right, its primary function is as a binder for the metal hydride. Illustrative examples of metal hydrides include but are not limited to as aluminum hydrides, lithium hydrides, and lithium aluminum hydrides.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: May 7, 2002
    Assignee: A.P.T. Aerospace, L.L.C.
    Inventors: Ronald W. Humble, Robert H. Grubbs, Charles S. Woodson
  • Publication number: 20010038821
    Abstract: The present invention features methods for preparing stabilized &agr;-AlH3 and &agr;′-AlH3, compositions containing these alane polymorphs, e.g., energetic compositions such as rocket propellants, and methods for using the novel polymorphs as chemical reducing agents, polymerization catalysts, and as a hydrogen source in fuel cells and batteries. The method produces stabilized alane by treating &agr;-AlH3 with an acidic solution that optionally contains a stabilizing agent such as an electron donor, an electron acceptor, or a compound which coordinates the Al3+ ion.
    Type: Application
    Filed: March 29, 2001
    Publication date: November 8, 2001
    Inventors: Mark A. Petrie, Jeffrey C. Bottaro, Robert J. Schmitt, Paul E. Penwell, David C. Bomberger
  • Patent number: 6126764
    Abstract: A pyrotechnic fuel material for a booster in a pyrotechnic system having an adjacent igniter. In one embodiment, a powdered BaAl.sub.4 compound is used as the booster pyrotechnic fuel. In another embodiment, a powdered zirconium/nickel alloy is used as the booster pyrotechnic fuel. Both the powdered BaAl.sub.4 compound and the powdered zirconium/nickel alloy exhibit ignition sensitivity thresholds on the order of millijoules, thereby allowing for increased safety in manufacturing and handling over elemental powdered metal pyrotechnic fuels normally used for the entire pyrotechnic system.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: October 3, 2000
    Assignee: Special Devices, Inc.
    Inventor: Hubert G. Timmerman
  • Patent number: 5886293
    Abstract: A process for preparing energetic materials by (1) dissolving a vinylidenuoride-hexafluoropropylene copolymer in a ketone that is acetone, methyl ethyl ketone, or mixtures thereof, (2) adding polytetrafluoroethylene particles and reactive metal (magnesium, aluminum, or their alloys) particles to form a slurry, (3) adding CO.sub.2 to the slurry to precipitate out the copolymer which then coats the polytetrafluoroethylene and reactive metal particles, and (4) separating the copolymer-coated particles from the ketone and CO.sub.2.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: March 23, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: George W. Nauflett, Robert E. Farncomb, Lalit Chordia
  • Patent number: 5679921
    Abstract: This invention relates to flares; more particularly it relates to flares ch are good emitters of infra-red radiation and which are adapted to be attached to rockets for tracking purposes.
    Type: Grant
    Filed: August 27, 1958
    Date of Patent: October 21, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: George T. Hahn, Paul G. Rivette, Rodney G. Weldon
  • Patent number: 5574248
    Abstract: Energetic compositions and the process for obtaining same for use as the itable composition in infrared-emitting decoy flares, for high-temperature ignition compositions, and the like, are disclosed. These compositions are attained by combining a fluorinated hydrocarbon, either in a liquid state or as a water emulsion, with a powdered metal fuel such as aluminum, magnesium, titanium or zirconium to yield volatile solvent free energetic compositions.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: November 12, 1996
    Assignee: The United States of America as represented by the Secrerary of the Navy
    Inventors: Jerry S. Brown, John A. Conkling
  • Patent number: 5552001
    Abstract: The invention disclosed herein is an explicit procedure for initiating a charcoal fire and afterward building the fire, including a plan for effective support of the fire by air after the fire has been built. Arrangements to direct the afterward flow of air to the same charcoal briquets which are on fire at the end of the firebuilding process are featured. Directing and concentrating the hot oxygen to establish a concentration of the fire (a nest of coals) is featured. The container of the oxidizing agent serves two purposes, the support of the oxidizing agent during the firebuilding activity, and, initially by combustion of a portion of itself, the provision of a hot oxygen mixture to effectively initiate the fire before a firebuilding feedback process begins. A better way to achieve tabletted form of the chemically active ingredients has been discovered, comprizing the use of a composition of matter in which all the ingredients are active in supplying oxygen.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: September 3, 1996
    Inventor: Robert E. Fearon
  • Patent number: 5531844
    Abstract: Energetic compositions and the process for obtaining same for use as the itable composition in infrared-emitting decoy flares, for high-temperature ignition compositions, and the like, are disclosed. These compositions are attained by combining a fluorinated hydrocarbon, either in a liquid state or as a water emulsion, with a powdered metal fuel such as aluminum, magnesium, titanium or zirconium to yield volatile solvent free energetic compositions.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: July 2, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jerry S. Brown, John A. Conkling
  • Patent number: 5389308
    Abstract: A composition generating an IR-opaque smoke in the form of a compact which has a density in the range from 0.9 to 1.5 g/cm.sup.3 is described, comprising from 10 to 25 percent by weight of magnesium powder, from 5 to 35 percent by weight of a fluorinated organic poller, from 5 to 15 percent by weight of chloroparaffin and from 35 to 65 percent by weight of an aromatic compound of the formula I ##STR1## wherein A and B are independently selected from ##STR2## R.sup.1 and R.sup.2 are independently selected from OH, X or alkyl having one to four carbon atoms,m and n is an integer from 0 to 2, andX is halogen,or an aromatic compound of formula II ##STR3## wherein R.sup.1 and R.sup.2 X m and n are defined as above and D and E are independently selected from ##STR4## or phtalic anhydride, 2-benzoyl pyridine, fluorene, dibenzosuberenone or diphenylenesulphide or the derivatives thereof substituted by R.sup.1.sub.m and/or R.sup.2 .sub.m.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: February 14, 1995
    Assignee: Buck Werke GmbH & Co.
    Inventors: Horst Busel, Joseph Schneider
  • Patent number: 5348597
    Abstract: The present invention relates to metal filaments for use as fuel additives for rocket propellants, explosives, and other pyrotechnic devices. Preferred filaments are those such as zirconium, niobium and titanium (and alloys thereof) which have very high heat of combustion.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: September 20, 1994
    Assignee: Composite Materials Technology, Inc.
    Inventor: James Wong
  • Patent number: 5320692
    Abstract: A ramjet solid fuel composed of Hydroxyl terminated polybutadiene aluminum, agnesium, and boron carbide is described. The high volumetric heating value fuel of the present invention significantly increases the distance range of missiles.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: June 14, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: George W. Burdette, Gary W. Meyers
  • Patent number: 5139589
    Abstract: A fuel for use independently of atmospheric air by reaction with an oxidizer, has a metal hydride as a solid fuel component mixed into an inert liquid fuel component and 1.5 to 5.0 weight percent of a stearate as part of the solid fuel component. The liquid fuel component is preferably an easy flowing paraffin into which the stearate and the solid fuel component are mixed to form a liquified fuel that will react with a liquid oxidizer. The mixing is preferably performed at a temperature above 100.degree. C. and at a reduced pressure less than 10.sup.5 Pa.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: August 18, 1992
    Assignee: ERNO Raumfahrttechnik GmbH
    Inventor: Joerg Hartmanns
  • Patent number: 5122298
    Abstract: A smoke forming composition is provided suitable for being explosively dirsed in projectiles, bombs, grenades and the like munitions which is composed of a mixture of finely divided solid particles of smoke forming material and a liquid component in an amount sufficient to densify the solid particles of smoke forming materials to increase the bulk density thereof as well as reducing the danger of ignition or "flashing" of the smoke forming materials when explosively dispersed.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: June 16, 1992
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Raymond R. Fry, Jr., Werner W. Beyth, Merlin L. Erickson
  • Patent number: 5083615
    Abstract: In a gas-generating chemical reaction carried out in a borehole that is largely filled with water, substantial pressure increases can be generated. This pressure can be used to fracture rocks around the borehole and, hence, stimulate water, oil or gas wells in tight rock formations. This pressure increase can also be used to fracture coal seams for enhanced in-situ gasification or methane recovery. This invention discloses the use of a new, novel system, based on the homogeneous reaction of aluminum alkyls with water, to create a controlled pressure increase. The most appropriate reaction mixture, as characterized by the rise of time of the generated pressure pulse and the energy content per unit length of borehole charge, is disclosed in this new invention.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: January 28, 1992
    Assignee: The Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Edward McLaughlin, F. Carl Knopf
  • Patent number: 4841865
    Abstract: A composition for producing smoke from phosphorus vapor for use in search and rescue markers and a method of producing such composition. The composition comprises a blended mixture of the following ingredients in the following weight percentage ranges:red phosphorus--55% to 80%;oxidizing agent (sodium nitrate or ammonium nitrate)--10% to 30%;metal fuel--5% to 10%;acid absorber--1% to 5%; andsynthetic rubber binder--1% to 8%.Such a composition tends to be more stable and reliable than previous compositions used for this purpose, as well as less hazardous to manufacture. In addition, it permits an increase in the proportion of red phosphorus used, with a resultant increase in burn time and/or flame and smoke emission.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: June 27, 1989
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventor: Thomas Liberman
  • Patent number: 4724018
    Abstract: The invention pertains to a smoke-producing pyrotechnical composition which is designed for the production of a smoke screen that prohibits the transmission of infrared radiance from a target to a pick-up.It includes a compound which generates, through thermal decomposing, carbon particles of which the size is included between about 1 and 14 .mu.m, and an oxidoreducing system which reacts at a temperature that exceeds 1000 degrees C. and a binding agent. The compound which generates carbon particles can be hexachloroethane, hexachlorobenzene, naphtalene, anthracene, or their mixture; the reducing agent can be a metal powder (magnesium) and the oxidizer hexachlorobenzene and/or hexachloroethane.An application to the execution of smoke-producing devices.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: February 9, 1988
    Assignee: Etat Francais
    Inventors: Andre Espagnacq, Gerard D. Sauvestre
  • Patent number: 4719856
    Abstract: The pyrotechnic device comprises a projectile, a ground mounted device or a floating device whose casing contains a charge of titanium or other suitable combustible metal-containing material, charcoal, or other reducing agent and gunpowder such that, following ignition, infra-red emitting particles are emitted to form an infra-red radiating screen. The carbon reduces oxidation of the combustible material prior to emission.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: January 19, 1988
    Assignee: Pains-Wessex Limited
    Inventor: Nigel F. Joslin
  • Patent number: 4719857
    Abstract: The pyrotechnic device comprises a projectile, a ground mounted device or a floating device whose casing contains a charge of particulate material, for example a combustible silicon-containing material in particular mixed with titanium or other suitable combustible metal-containing material and gunpowder such that, following ignition, infra-red emitting particles are emitted for forming an infra-red radiating screen.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: January 19, 1988
    Assignee: Pains-Wessex Limited
    Inventor: David J. Spring
  • Patent number: H360
    Abstract: An improved device for a smoke obscuration munition includes a thin-walled erosol can body. A sealed central burster tube is affixed to and extends into the sealed payload within the device. The payload consists of a slurry contained in the annular space outside the burster which includes a highly volatile, low density, low surface tension hydrocarbon liquid and a obscuration agent as the payload.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: November 3, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Stanley P. Shukis, Clayton J. Schneider, Jr., Edward A. Gasiecki