Containing Free Metal Or Metal Hydride With Hydrocarbon Or Halogenated Hydrocarbon Patents (Class 149/87)
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Patent number: 4699741Abstract: The disclosure primarily relates to a method of phlegmatizing crystalline or otherwise particulate explosive substances or compositions in which these are included, by first coating the discrete particles with a thin layer of oxazolin wax in order thereafter to carry out a conventional wet-granulation with a true phlegmatization agent or a binder agent, such as one of the wax types included under different explosive standards or a plastic composition. The invention also concerns products manufactured according to said method.Type: GrantFiled: September 26, 1986Date of Patent: October 13, 1987Assignee: Nobel Kemi ABInventors: Sigurd Back, Jan-Olof Nyqvist, Per Ericsson
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Patent number: 4698108Abstract: The invention concerns a castable pyrotechnic composition used to produce opaque smoke for impeding the transmission of infrared radiation from a target to a sensor, of the type including a compound generating carbon particles whose dimensions are between 1 and 14 .mu.m.The composition includes a condensed halogenated carbon compound with a melting point between 75.degree. C. and 120.degree. C., with a halogenation ratio greater than 3, such as chloronaphthalene, a fluoro carbon compound such as vinylidene polyfluoride, and a metal powder such as magnesium, reacting together at a temperature of the order of 1500.degree. C.Application is in camouflaging targets emitting infrared radiation.Type: GrantFiled: June 3, 1986Date of Patent: October 6, 1987Assignee: Etat FrancaisInventors: Jean F. Vega, Philippe C. Morand
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Patent number: 4697521Abstract: The invention concerns a method and a smoke-producing pyrotechnical ammunition to shield the visible and infrared radiance in a wave length included between 0.4 and 14 .mu.m emitted by a target. First we produce instantly a first hot aerosol with a fast pyrotechnical composition, which masks the target through diffusion in the visible spectrum and with its emitting potential in the infrared zone. Then, we produce a second aerosol which contains hot carbon particles of which the size is included between 1 and 14 .mu.m with a slow pyrotechnical composition for shielding mainly through diffraction the thermal image emitted by the target. The fast composition includes zinc and zinc oxide, potassium perchlorate, hexachlorobenzene or hexachloroethane powder and a binding agent. The slow composition includes a compound which generates carbon particles of 1 to 14 .mu.Type: GrantFiled: July 27, 1983Date of Patent: October 6, 1987Assignee: Etat FrancaisInventors: Andre Espagnacq, Gerard D. Sauvestre
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Patent number: 4653690Abstract: The disruption of a thermal inversion and formation of cumulus clouds is duced by the ignition of a pyrotechnic composition containing an alkali earth metal. The combined heats of hydration, condensation and combustion of the composition disrupt the thermal layer allowing the passage of warm moist air into a zone of cooler air. The formation of cumulonimbus or cumulus clouds results.Type: GrantFiled: November 5, 1984Date of Patent: March 31, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventors: Pierre St. Amand, Larry A. Mathews
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Patent number: 4619722Abstract: A solid propellant acts in a chamber to propel a member such as a rocket, the chamber being closed to the atmosphere. The propellant provides high density-impulses and, when combusted, produces end products which do not have any deleterious effects. The propellant preferably includes a binder having hydrocarbon linkages and a lead compound oxidizer formed from an inorganic lead oxidizer salt. This oxidizer has dense characteristics and stable properties at ambient temperatures and through a particular range of temperatures above ambient. The propellant also includes a fuel additive, preferably a metal such as aluminum, having properties of being oxidized by the oxidizer and of reducing the lead. The fuel additive has a percentage by weight relative to the lead compound oxidizer to reduce the lead to lead oxide. The fuel additive is preferably included in the propellant in the range to approximately twenty percent (20%) by weight and is preferably in a fragmentary form.Type: GrantFiled: September 12, 1983Date of Patent: October 28, 1986Assignee: Universal Propulsion Company, Inc.Inventor: Frank A. Marion
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Patent number: 4469647Abstract: Constituent pyrotechnic materials are dispensed by prescribed weight or volume into a single container containing an excess volume of an inert liquid, such as Freon T.E., having the property of preventing ionization of the materials. The pyrotechnic materials in inert fluid medium are then stirred so as to obtain an homogeneous slurry mixture. The slurry is allowed to settle and the inert fluid is decanted off for future reuse. The remaining slurry is dispensed into individual containers under pressure. The slurry is vacuum dried at a safe temperature to minimize the accidental ignition hazard while removing the remaining inert liquid, thus forming individual casts of pyrotechnic material. The casts are permitted to reach ambient temperature and pressure at predetermined rates so as to prevent cracking of the pyrotechnic charges.Type: GrantFiled: March 24, 1983Date of Patent: September 4, 1984Assignee: General DynamicsInventor: Spencer J. Speer
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Patent number: 4435233Abstract: This invention comprises a process for the preparation of a smoke composition based on hexachloroethane, zinc oxide, and metal powder, in which zinc oxide granules obtained by high compression and subsequent crushing are used as a mixture component and the intermittent burnoff of previous smoke compositions of this type is thus avoided; the invention also concerns a smoke generator filled with such a smoke composition.Type: GrantFiled: January 29, 1982Date of Patent: March 6, 1984Assignee: Buck Chemisch-Technische Werke GmbH & Co.Inventors: Peter Rayer, Hartmut Krone, Alois Schiessl, Wolfgang Steinicke, Wolfgang Trede
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Patent number: 4357184Abstract: A water-in-oil explosive composition based on colloidal dispersions is provided. Unlike conventional emulsion explosive compositions, the microemulsion composition of the invention displays exceptional long term storage stability retaining sensitivity to propagation even in small diameter charges. The composition is also tolerant to doping with further fuel and energy enhancing ingredients. The microemulsion-producing component of the composition comprises a combination of at least one conventional water-in-oil emulsifier and at least one amphiphatic synthetic polymeric emulsifier selected from graft, block or branch polymers.Type: GrantFiled: November 25, 1980Date of Patent: November 2, 1982Assignee: C-I-L Inc.Inventors: Rejean Binet, Joseph A. R. Cloutier, Anthony C. F. Edmonds, Harold W. Holden, Melvin A. McNicol
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Patent number: 4341651Abstract: A composition which upon heating generates hydrogen or hydrogen isotopes prises an intimate mixture of a hydride component selected from the group consisting of calcium hydride, magnesium hydride, sodium hydride, lithium hydride and mixtures thereof, and a salt component selected from the group consisting of ammonium salts, hydrazinium salts and mixtures thereof, said hydride component being present in at least a stoichiometric amount.Type: GrantFiled: August 26, 1980Date of Patent: July 27, 1982Assignee: The United States of America as represented by the Secretary of the NavyInventors: Werner F. Beckert, William H. Barber, Richard E. Bowen, Ottmar H. Dengel
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Patent number: 4309230Abstract: Titanium subhydride is produced in a reactor by heating a selected amount of finely divided titanium compound at a selected temperature for a selected period of time under dynamic vacuum conditions. Hydrogen is removed substantially uniformly from each powder grain and there is produced a subhydride of substantially uniform titanium-hydrogen composition. Selection of the amount, temperature and time produces a subhydride of selected titanium-hydrogen composition.Type: GrantFiled: May 30, 1980Date of Patent: January 5, 1982Assignee: The United States of America as represented by the United States Department of EnergyInventor: Richard S. Carlson
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Patent number: 4304614Abstract: An improved explosive composition is disclosed and comprises a major portion of an explosive having a detonation velocity between about 1500 and 10,000 meters per second and a minor amount of a donor additive comprising a non-explosive compound or mixture of non-explosive compounds which when subjected to an energy fluence of 1000 calories/cm.sup.2 or less is capable of releasing free radicals each having a molecular weight between 1 and 120. Exemplary donor additives are dibasic acids, polyamines and metal hydrides.Type: GrantFiled: March 2, 1979Date of Patent: December 8, 1981Inventors: Franklin E. Walker, Richard J. Wasley
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Patent number: 4302259Abstract: An improved pyrotechnic fuel composition comprising a metal fuel and a contional pyrotechnic oxidizer for producing light, heat, smoke and sound through an exothermic reaction wherein the improvement comprises the use of a metal hydride as the fuel ingredient to produce a pyrotechnic composition which readily ignites and which has a lower burning rate for increased luminous intensity. The metal hydride fuel is preferably selected from the group consisting of magnesium hydride, titanium hydride, sodium borohydride and a lithium aluminum hydride.Type: GrantFiled: October 31, 1979Date of Patent: November 24, 1981Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Joseph R. Ward
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Patent number: 4278480Abstract: A permanently tacky slurry type explosive comprises polyisobutylene containing a balanced fuel explosive phase in the form of an explosive material in particulate condition (ammonium nitrate, PETN, RDX and the like) and a minor amount of a carbon fuel (oil or carbon particles).Type: GrantFiled: August 6, 1979Date of Patent: July 14, 1981Inventor: Gerald E. Johannes
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Patent number: 4238254Abstract: A pyrotechnic smoke charge which comprises guanidinium nitrate and (a) chlorohydrocarbons and a metal powder, of (b) red phosphorous, which can be partially replaced by a chlorohydrocarbon, and wherein said charge may optionally contain a small amount of a reaction regulating agent.Type: GrantFiled: May 7, 1979Date of Patent: December 9, 1980Assignee: Buck Chemisch-Technische Werke GmbH & Co.Inventors: Georg Prahauser, Alois Schiessl
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Patent number: 4231891Abstract: Solid compositions which, when heated to initiate the reaction between the omponents of the compositions, generate gases containing a high percentage of hydrogen or hydrogen isotopes. The compositions comprise intricate mixtures of certain metal powders and certain ammonium or hydrazinium salts.Type: GrantFiled: June 16, 1978Date of Patent: November 4, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Werner F. Beckert, William H. Barber, Ottmar H. Dengel
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Patent number: 4230509Abstract: A low viscosity liquid pyrophoric composition, which provides good safety der ordinary handling conditions but ignites rapidly when disseminated into the atmosphere, consists essentially of about from 50% to 85% by weight of a homogeneous solution of polyisobutylene in triethylaluminum and about from 15 to 50% of a saturated aliphatic hydrocarbon of 5 to 12 carbon atoms, said composition having a viscosity ranging about from 30 to 150 centistokes at 40.degree. C. When explosively disseminated into the atmosphere, the composition generates a fireball having a controlled ignition delay, which permits essentially complete vaporization of the hydrocarbon prior to ignition of the TEA, thereby producing rapid pulses of intense thermal radiation having a temperature as high as 1200.degree. C. (2192.degree. F.) and higher.Type: GrantFiled: April 13, 1979Date of Patent: October 28, 1980Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Milton A. Tulis, Charles M. Lawson, Lawrence D. Whiting, III
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Patent number: 4202668Abstract: A relatively stable inert simulant formulation for a hazardous metallized el which has the density, shear rate and yield stress of the duplicated fuel. This formulation provides inexpensive and safe testing of exploratory hydraulic studies, or testing of the mechanical strength of containers, plumbing, etc., in which the metallized fuels are to be used.Type: GrantFiled: July 15, 1970Date of Patent: May 13, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Nathan J. Sippel, Earl J. Hiser, John Christy
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Patent number: 4100102Abstract: A composition for nullifying detection with infra-red equipment consisting ssentially of a suspension of 30-40% by weight of aluminum particles in from 60 to 70% by weight of vaporizable hydrocarbon oil, said aluminum particles have diameters in range of 2 to 20 microns and thickness of less than 3/10 micron.Type: GrantFiled: April 6, 1965Date of Patent: July 11, 1978Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Roy E. Shaffer
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Patent number: 4084994Abstract: The present invention relates to an aqueous explosive composition which consists of at least one inorganic oxygen-supplying substance, at least one combustible substance and at least one thickening agent, at least one of combustible substance being liquid and substantially water insoluble and the aqueous phase of the explosive composition having dissolved therein a lignosulphonate in an amount of up to 5% of the weight of the explosive composition.Type: GrantFiled: December 30, 1976Date of Patent: April 18, 1978Assignee: Dyno Industrier A.S.Inventors: Tore Bernt Nielsen, Oddvar Alm
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Patent number: 4012244Abstract: 1. A high density solid propellant composition comprising zirconium hydri ammonium perchlorate and a copolymer of vinylidene fluoride and perfluoropropylene.Type: GrantFiled: March 31, 1961Date of Patent: March 15, 1977Assignee: The United States of America as represented by the Secretary of the NavyInventors: Martin H. Kaufman, Peter L. Stang
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Patent number: 3998676Abstract: Aluminum particles are coated with a composition containing 84 .+-. 3 wei percent desensitizing wax, 2 .+-. 0.5 weight percent lecithin and 14 .+-. 1 weight percent nitrocellulose prior to being mixed with other ingredients of an explosive composition in a bomb manufacturing process in order to eliminate the possibility of dust explosions occurring during the bomb manufacturing process.Type: GrantFiled: July 29, 1974Date of Patent: December 21, 1976Assignee: The United States of America as represented by the Secretary of the NavyInventors: Richard A. Plauson, deceased, by Mary E. Plauson, legal representative, William McBride
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Patent number: 3983816Abstract: The compositions burn to produce flickering signals of flame and smoke, and which in addition emit infrared and radar signals. The compositions comprise a fuel of either magnesium, aluminum or both, a reactive chlorinated aromatic compound such as hexachlorobenzene, one or more oxidizers selected from nitrates and perchlorates of ammonium, barium, cesium, lithium, potassium, sodium, and strontium, and a binder of a fluorinated polymer.Type: GrantFiled: January 16, 1974Date of Patent: October 5, 1976Assignee: Thiokol CorporationInventors: Richard P. Cornia, Russell Reed, Jr.
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Patent number: 3972820Abstract: Disclosed is a novel fire extinguishing composition comprising a heat and gas producing pyrotechnic composition comprising a binder and an oxidizer, and having dispersed therein a halogen containing fire extinguishing agent. The pyrotechnic, when ignited, thermally disseminates the fire extinguishing agent onto the fire.Type: GrantFiled: December 20, 1973Date of Patent: August 3, 1976Assignee: The Dow Chemical CompanyInventors: Harold E. Filter, Don L. Stevens
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Patent number: 3963541Abstract: A method of manufacturing a mixture of finely divided metals and solid perhalogenated carbon compounds, which mixture is capable of reaction when it is ignited, in which perhalogenated carbon compounds are used as solvents.Type: GrantFiled: June 13, 1973Date of Patent: June 15, 1976Assignee: U.S. Philips CorporationInventors: Udo Klaus Paul Biermann, Johann Schroder
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Patent number: 3957550Abstract: A flame-explosion couple is disclosed which upon ignition burns for a period of time in a relatively stable manner and thereafter explodes to produce fragments which continue to burn for a further period of time. The composition may comprise from 40 to 89 percent by weight of a volatile liquid fuel, from 10 to 50 percent by weight of a secondary explosive or strong metal salt oxidizer and from 0.5 to 5 percent by weight of an explosive primer. It is usually desirable to incorporate a gellant in the composition to give it a jellylike consistency of a desired viscosity. The composition may optionally contain combustible metal powders and combustible polymers.Type: GrantFiled: September 13, 1966Date of Patent: May 18, 1976Assignee: Thiokol CorporationInventors: Stanley Tannenbaum, Clyde J. Poulin
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Patent number: 3948245Abstract: A combined heat-producing and heat-exchanging system in which sodium or a mixture of lithium and sodium and/or potassium is reacted in a reaction vessel with fluorine and/or chlorine or gaseous compounds of these halogens, while the sodium and/or potassium vapour formed as a result of the produced heat is passed on to the heat exchanger of a heat-consuming device and the condensate is led back to the reaction vessel.Type: GrantFiled: September 25, 1974Date of Patent: April 6, 1976Assignee: U.S. Philips CorporationInventor: van der Sluys
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Patent number: 3948699Abstract: A storable solid propellant composition based on complex metal boron compds of the general formula M(BH.sub.4).sub.x or M(BD.sub.4).sub.x, (where M equals a metal and x equals the valence of the metal M; M is an alkali metal or an alkali earth metal; H is hydrogen, and D is deuterium) and metal oxides of the general formula Q.sub.2 O.sub.3 (where Q is a trivalent metal selected from iron, aluminum, gallium cobalt, and indium) combined stoichiometrically. The stoichiometric blend is employed in a method for producing high temperature (e.g. 600.degree.C-700.degree.C) hydrogen or deuterium that is acceptable for use in HF/DF and HCl chemical lasers, the gas dynamic laser (GDL), or a source to generate chemically pure and hot hydrogen gas as a reducing fuel.Type: GrantFiled: November 8, 1974Date of Patent: April 6, 1976Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Orval E. Ayers, Roy E. Patrick
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Patent number: 3948700Abstract: A storable solid propellant composition based on unsolvated aluminum deutde or unsolvated aluminum hydride and ferric oxide is provided for use in a method for producing high temperature hydrogen or deuterium that is acceptable for use in HF/DF and HCl chemical laser, the gas dynamic laser (GDL), or a source to generate chemically pure and hot hydrogen gas as a reducing fuel.Type: GrantFiled: November 8, 1974Date of Patent: April 6, 1976Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Orval E. Ayers, Roy E. Patrick
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Patent number: 3931374Abstract: The fuel block contains an energizing metallic powder, each particle of wh is surface coated with discrete particles of a polyfluoroethylene compound, preferably polytetrafluoroethylene, capable of reacting with the associated metal particle at a temperature below the combustion temperature of the block. The fuel block may be formed from hybrid propergols.Type: GrantFiled: October 9, 1970Date of Patent: January 6, 1976Assignee: Office National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.)Inventors: Helene Denise Moutet nee Layrisse, Maurice J. Pugibet, Jean-Jacques Scherchen
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Patent number: H169Abstract: An igniter composition for a gas generator comprises a stoichiometric comation of pyrotechnic metal selected from the group consisting of beryllium, boron, lithium, sodium, titanium, magnesium, aluminum and alloys and mixtures thereof and one or more halogenated polymers; and fumed colloidal silica in an amount from about 0.5 to about 2.5 percent of the total composition weight.Type: GrantFiled: May 22, 1986Date of Patent: December 2, 1986Assignee: The United States of America as represented by the Secretary of the NavyInventors: Gerald L. Mackenzie, Robert O. Petri, James E. Rose