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| Number | Title | Issue Date |
| 7175684 | Prilling method A prilling method comprising the steps of: providing a molten first component, mixing at least a second component with the molten first component, reacting the components to form a shear-thinnable mixture; and prilling the shear-thinnable mixture wherein the prillin... | 02/13/2007 |
| 6030473 | Method for manufacturing a granular material for producing ignition nuclei in propellants and fuels Surface reactors for propellants operate with a copper/tin alloy and convert unsaturated hydrocarbons at low concentration into tin organics that are extremely highly ignitable and therefore act as ignition nuclei in the combustion of propellants. However... | 02/29/2000 |
| 5962803 | Apparatus for preparing spherical energetic compounds A method for producing substantially spherical energetic compounds such as ammonium dinitramide (ADN) which minimizes the time during which the ADN is melted involves providing solid ADN, feeding the ADN at a controlled continuous rate to a heating means,... | 10/05/1999 |
| 5928576 | Cap-sensitive watergel explosive composition production process A watergel explosive composition is described which contains an oxidiser salt, a sensitiser, a thickener, a crosslinking agent, a fuel and less than 8%, by mass, of the composition of water. The explosive composition is cap sensitive in packages or cartri... | 07/27/1999 |
| 5886293 | Preparation of magnesium-fluoropolymer pyrotechnic material 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 (magnesiu... | 03/23/1999 |
| 5801453 | Process for preparing spherical energetic compounds A method for producing substantially spherical energetic compounds such as ammonium dinitramide (ADN) which minimizes the time during which the ADN is melted involves providing solid ADN, feeding the ADN at a controlled continuous rate to a heating means,... | 09/01/1998 |
| 5696407 | Process for the production of spherulitic particles In the production of spherulitic nitroguanidine having a high bulk and tap ensity nitroguanidine is dissolved in dipolar, aprotic solvents, e.g. DMF, DMSO, NMP, etc., by heating to above the saturation temperature ts and the supersaturated solut... | 12/09/1997 |
| 5682009 | Propellant containing a thermoplatic burn rate modifer There is disclosed a propellent having a deterred burn rate. The propellent is a particulate containing an energetic binder base and a thermoplastic burn deterrent. The energetic binder has in impetus (energy) in excess of 200,000 foot pounds per pound (m... | 10/28/1997 |
| 5682004 | Apparatus for reduction of the grain size of crystalline explosive A method and an apparatus for reducing the grain size of crystalline explosive provide for, first of all, dissolving the coarse crystalline explosive in an organic solvent. Subsequently, the dissolved explosive is brought together with ice water in a prec... | 10/28/1997 |
| 5623168 | Reduction of the grain size of crystalline explosive Reduction of the grain size of crystalline explosive. A method and an apparatus for reducing the grain size of crystalline explosive provide for, first of all, dissolving the coarse crystalline explosive in an organic solvent. Subsequently, the dissolved explo... | 04/22/1997 |
| 5565710 | Process for manufacturing granular igniter There is provided a process for manufacturing a granular igniter, which facilitates control of the igniter preparation, handling of the granule igniter and improvement in manufacturized yield. The present invention also provides a process for manufacturin... | 10/15/1996 |
| 5510062 | Method of producing a nitrocellulose propellant containing a cellulosic burn rate modifier infiltrated therein There is disclosed a propellent having a deterred burn rate. The propellent is a particulate containing a nitrocellulose base and a cellulosic thermoplastic deterrent, preferably cellulose acetate butyrate or cellulose acetate propionate. The deterrent is... | 04/23/1996 |
| 5501132 | Dry preparation of particulate solid energetic material Energetic material can be rapidly cut or machined at high speed in the substantial absence of liquid coolant with a cutting tool having a rotating cutting surface by maintaining a portion of the cutting surface out of contact with the energetic material a... | 03/26/1996 |
| 5354520 | Prill process Explosive grade ammonium nitrate (EGAN) prills are made by a process comprising the steps of: a. continuously spraying a 95 to 98% by weight solution/melt of ammonium nitrate (or a mixture of ammonium nitrate and minor proportions of one or more other EGA... | 10/11/1994 |
| 5320691 | Charcoal-free black powder type granules and method of production A method of producing an energetic composition comprising the steps of (a) issolving an alkali metal hydroxide in aqueous denatured alcohol to form an alcohol and alkali metal hydroxide solution; (b) kneading phenolphthalein or other reaction product of a ... | 06/14/1994 |
| 5281286 | Microcoacervation of propellant ingredients The coacervation of ferrocene and ferrocene derivative is carried out in a ater-soluble polyol, coacervation mixture at a reaction temperature from about 40° C. to about 55° C. The coacervation mixture is comprised of about 70 to about 80 parts of a 1:1 ... | 01/25/1994 |
| 5240524 | Ammonium nitrate density modification High density ammonium nitrate particles, e.g. prills are treated to reduce the density thereof by contact with a liquid medium which penetrates into the particles via pre-existing pathways, dissolves ammonium nitrate at the surfaces of the pathways and pr... | 08/31/1993 |
| 4997614 | Method of mixing raw material composition of highly ignitable or explosive material A raw material composition for igniters, etc. which may ignite or explode can be safely mixed with high homogeneity by dissolving or dispersing a raw material composition of a highly ignitable or explosive material in a solvent or a dispersion medium, app... | 03/05/1991 |
| 4798142 | Rapid buring propellant charge for automobile air bag inflators, rocket motors, and igniters therefor A rapid burning propellant charge for applications including igniters, launch eject motors, and gas generators for automobile air gags. The propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of ... | 01/17/1989 |
| 4790891 | Process for the production of a cartridged explosive with entrapped bubbles In a process for the production of a `water-in-fuel` or `melt-in-fuel` emulsion explosive a density-reducing agent is introduced and dispersed in the emulsion at an elevated temperature whereat the emulsion is essentially liquid, the explosive is cartridg... | 12/13/1988 |
| 4764329 | Producing explosive material in granular form In mass production of explosive warheads, heat-meltable explosive material s continuously converted from an amorphous mass into small solid granules by directing melted exposive in a thin continuous stream against the upper inside surface of a rotating, ge... | 08/16/1988 |
| 4761254 | Method of and apparatus for fabricating a tool to form an asymmetrical constant cross section bore in the propellant in a solid rocket motor An elongated flexible bag is fitted inside templates that have aligned openings therein corresponding in shape to that desired for a solid rocket motor propellant bore. With the bottom sealed, the bag is filled with a multiplicity of solid pieces each hav... | 08/02/1988 |
| 4704967 | Method of assembly of compacted particulates and explosive charge A visual-and-infrared-screening cloud-forming product is made by forming a slurry of fine metal flakes of copper composition, particularly brass, of submicron thickness and multimicron lateral face dimensions, together with a volatile surface-wetting agen... | 11/10/1987 |
| 4694753 | Continuous production of low density base grain with a salt-free liquor A process for continuously producing double base propellant powder of a low density (specific gravity 1.15 to 1.275). This process uses a salt-free liquor.... | 09/22/1987 |
| 4689185 | Priming method for rimfire cartridge A priming method for rimfire cartridges is disclosed in which a propellant solution is disposed adjacent a centrifugally located primer material in a rimfire cartridge. The solvent is then evaporated to leave a propellant film near the primer material in ... | 08/25/1987 |
| 4670200 | Process for the production of propellant powders There is described a process for the continuous or semi-continuous fabrication of propellant powders for the production of a powder having reproducable characteristics, in extremely safe conditions, thus overcoming the disadvantages found in the existing ... | 06/02/1987 |
| 4608210 | Method for producing plastically bonded propulsion powders and explosives A method for manufacturing plastically bonded propulsive powders and explves by means of an extruder which comprises a housing with at least one entry opening, under certain conditions a solvent supplementing opening, two co- or counterrotating screw sha... | 08/26/1986 |
| 4597924 | Tetra-alkyl titanates as bonding agents for thermoplastic propellants A process is disclosed for improving the mechanical properties and procesility of thermoplastic composite propellants achieved by incorporation in the propellant of from about 0.1% to 1.0% of an organic titanate of the general formula Ti(OR)4,... | 07/01/1986 |
| 4384903 | Slurry explosive composition An aqueous slurry explosive blasting composition comprising an aqueous suspension of water-soluble crystalline oxidizing salt consisting predominantly of ammonium nitrate, which salt has been comminuted in a saturated aqueous solution in the presence of a... | 05/24/1983 |
| 4367104 | Finely comminuted water-soluble materials and aqueous suspensions thereof Water-soluble crystalline material which has been comminuted in a saturated aqueous solution of the material in the presence of a water-soluble crystal-growth inhibitor having a hydrophobic portion and a hydrophilic portion in its molecular structure is m... | 01/04/1983 |
| 4324819 | Catalyst for hydrazine decomposition and the method of producing the catalyst A catalyst is provided for decomposing hydrazine base monopropellants and providing multiple hydrazine-ignition restarts. The catalyst comprises a carrier material selected from the group consisting of high area ceramics, and 1/2 to 8% of active iridium, ... | 04/13/1982 |
| 4284592 | Combustion inhibitors A double base propellant charge is primed with a dimethyl siloxane resin before application of a silicone elastomer inhibitor to the primed surface. There may be a barrier coating, preferably of a polyvinyl acetal resin, between the double base material a... | 08/18/1981 |
| 4192837 | Caseless propellant charge A process for producing caseless propellant charges containing impact-sensitive material comprising the steps of impregnating a pre-formed propellent charge with a solution of impact-sensitive material and vaporizing the solvent from the propellent.... | 03/11/1980 |
| 4172866 | Drying process for casting powders Process for removal of residual "processing" solvent from propellant casting powder particles, following their manufacture, which comprises "liquid drying" the particles by contacting them with an organic liquid miscible with the processing solvent but ex... | 10/30/1979 |
| 4142928 | Method and apparatus for the production of explosive slurry A method and apparatus for the production of explosive slurry composed of liquids containing fuels and oxidizing agent and under circumstances solid constituents and sensitizers, the state of aggregation of the slurry being controlled by the addition of t... | 03/06/1979 |
| 4065529 | Process for spheroidization of RDX crystals A technique for the spheroidization of angular RDX crystals. The technique onsists of agitating such angular RDX crystals in a cyclohexanone medium saturated with RDX, during which time the temperature is raised to and then maintained at a predetermined le... | 12/27/1977 |
| 4052943 | Coating composition and method for improving propellant tear strength A typical rocket motor includes a motor casing containing a cast propellant onded to the casing and provided with a port through which combustion gases are delivered to the motor nozzle. During storage and operation, mechanical stresses in the propellant m... | 10/11/1977 |
| 4039640 | Moldable compositions comprising polyvinyl nitrate A mouldable thermoplastic composition comprises (i) polyvinyl nitrate, (ii) nitrocellulose and/or polyvinyl acetate and (iii) 2-nitro-diphenylamine and may be used to form combustible articles such as cartridge cases. Preferably, the composition comprises... | 08/02/1977 |
| 4031172 | Process for preparing nitrocellulose for use in small arms An improved process for producing colloidal nitrocellulose having a high vimetric loading density by a shock gel type process is provided. Process improvements result in part from the use of 13.35%N as the source of nitrocellulose and from the use of die... | 06/21/1977 |
| 4021514 | Method for the production of an inhibitor coating for a solid rocket propellent charge A method of producing an inhibitor coating for a solid propellent charge for protecting against undesired burning-off, the inhibitor coating containing an insulating layer composed of a binder and a filler, a protective- and adhesion layer located between... | 05/03/1977 |