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6972059 |
Exothermic feeder
An exothermal feeder mass is described, containing aluminum and magnesium, at least one oxidizing agent, a SiO 2 -containing filler, and an alkali silicate as the binder; it is characterized in...
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6878221 |
Lead-free nontoxic explosive mix
The present invention is directed to a lead-free, nontoxic pyrotechnic composition, comprising: 30-80 wt % of bismuth subnitrate; and 10-50 wt % of a fuel, wherein all weight percents are based on...
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6848366 |
Binary exploding target, package process and product
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...
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6481746 |
Metal hydrazine complexes for use as gas generants
Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral...
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6221187 |
Method of safely initiating combustion of a gas generant composition using an autoignition composition
The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame...
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5962808 |
Gas generant complex oxidizers
Nonazide gas generant compositions, useful for inflating passenger restraint gas inflator bags, comprise a multimetallic coordination complex oxidizer selected from coordination complexes comprised...
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5750922 |
Autoignition system for airbag inflator
An autoignition system for use in a gas generator for a vehicle occupant restraint system is disclosed. The autoignition system comprises a globule of an autoignition composition adhering to the...
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5684268 |
Lead-free primer mix
A lead-free primer mix based on diazodinitrophenol, tetrazene, nitrocellulose, barium nitrate and at least one of PETN, aluminum and antimony sulfide exhibits performance characteristics comparable...
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5652408 |
Explosive projectile
An explosive projectile has a splinter-generating body inside which is placed an explosive and/or incendiary load ignited by a primer. The projectile also contains an intermediate charge placed...
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5589660 |
Enhanced performance blasting agent
An improved blasting composition comprising from about 13 to 15 weight percent unrefined petroleum wax, from about 15 to 20 weight percent aluminum powder, from about 10 to 52 weight percent sodium...
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5495819 |
Endothermic gas generator for use in a device propulsion
An enclosure has stationary walls and a ram dividing the enclosure into first and second sections and movable in a particular direction to enlarge the first section and reduce the second section. A...
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5472536 |
Tracer mixture for use with laser hardened optics
A pyrotechnic mixture for use in tracer rounds of projectiles to increase sibility under high speed conditions when viewed through laser hardened optics, comprising, in percentages by weight, an...
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5472533 |
Spectrally balanced infrared flare pyrotechnic composition
A combination of a first and a second composition provide an adjustable spectrally balanced infrared flare usable to decoy missiles. The first composition includes boron, aluminum, ammonium...
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5320043 |
Low-vulnerability explosive munitions element including a multicomposition explosive charge, and method for obtaining a blast and/or bubble effect
The invention relates to a low-vulnerability explosive munitions element comprising a casing containing a multicomposition explosive charge, the innermost layer of which is a composite explosive...
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5071496 |
Low level blasting composition
A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an...
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5056435 |
Infrared illuminant and pressing method
An infrared illuminant composition and flares produced therefrom having increased burn rate and increased infrared intensity while maintaining low visible light intensity. The composition comprises...
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5042386 |
Destructive device for metal oxide-semiconductors
A pyrotechnic composition containing from 55 to 65 percent by weight Fe.s2 O 3 powder, 15 to 25 percent by weight aluminum powder, 5 to 15 percent by weight Ba(NO 3 ) 2 , 2 to 3 percent by weight...
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5034070 |
Gas generating material
A gas generating grain has a water-based particulate booster coating thereon. The coating comprises an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric...
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4968365 |
Pyrotechnical mixture for producing a smoke screen
A pyrotechnic mixture for producing a smoke screen includes a reduction agent comprising a light metal, at least one oxidation agent comprising potassium nitrate, combustion moderators including at...
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4948438 |
Intermolecular complex explosives
A melt/cast explosive composition comprising about 20 to 100 wt. % of a binary complex of ammonium nitrate (AN) and methyl nitroguanidine (MeNQ) in a molar ratio of about 0.55:1 to 1.35:1. This...
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4780156 |
Water resistant sensitizing additive for ammonium nitrate blasting agents
A dry non-explosive additive for ammonium nitrate-fuel oil (ANFO) blasting agents which provides water resistance and wet sensitivity to allow use of the explosive in wet drill holes. The additive...
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4696705 |
Gas generating material
Structure for generating nitrogen gas for inflating an air bag vehicle occupant restraint comprises a grain made of an azide based material which generates gas upon combustion. The grain is made of...
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4689096 |
Explosive booster composition
A packaged booster charge is provided which is sensitive to initiation by blasting cap yet which contains no self-explosive ingredient. The composition of the booster comprises a low melting point...
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4664728 |
Explosive systems
Water-based explosives that use siliceous boron-containing microspheres as sensitizing agents are stabilized by adding multivalent metal ions to the explosives. Zinc salts are especially useful.
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4619722 |
Propellant material with oxidizer reduction to lead oxide
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...
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4600452 |
Eutectic microknit composite explosives and processes for making same
A new arrangement of matter is developed which can be formulated to be a high explosive, a propellant or a gas generator. The new arrangement of matter in its explosive embodiment is known as a...
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4600451 |
Perchlorate based microknit composite explosives and processes for making same
A new arrangement of matter is developed which can be formulated to be a high explosive, a propellant or a gas generator. The new arrangement of matter in its explosive embodiment is known as a...
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4600450 |
Microknit composite explosives and processes for making same
A new arrangement of matter is developed which can be formulated to be a high explosive, a propellant or a gas generator. The new arrangement of matter in its explosive embodiment is known as a...
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4597810 |
Tracer unit for ammunition
The tracer unit, which is particularly adaptable for ammunition used in hand guns and submachine guns, consists of a base charge including about 70 to about 90 weight % strontium peroxide, about 5...
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4585495 |
Stable nitrate/slurry explosives
Explosives that are sensitized blends of inorganic nitrate, e.g., AN, particles, such as AN or ANFO prills, and an aqueous slurry comprising a thickened aqueous solution of an inorganic oxidizing...
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4566921 |
Priming composition which is sensitive to percussion and a method for preparing it
A priming composition with an elevated thermal stability, which is sensit to percussion, is disclosed. The priming composition comprises a tetrazolic ring containing primary explosive and a...
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4555276 |
High density pressure resistant invert blasting emulsions
A method of minimizing deep hole pressure effects on ammonium nitrate-containing blasting agents while optimizing booster sensitivity, detonation rate and detonation energy of such agents, by...
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4554032 |
Water-in-oil emulsion explosive composition
A water-in-oil emulsion explosive composition containing hollow microspheres obtained by firing volcanic ash and having a bulk density of 0.05-0.1 and an average particle size of 10-100 μm has...
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4552597 |
Soft composite explosives and process for making same
A soft composite explosive composition is made by forming an oil-continuous, melt-in-fuel emulsion in which the discontinuous phase is comprised of ammonium nitrate and other ingredients which...
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4547234 |
Explosive composition
An explosive composition containing micro-voids consisting of thermoplastic resin hollow microspheres coated with a thermosetting resin has a remarkably excellent low temperature detonability in a...
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4528049 |
Seismic explosive composition
A dry explosive seismic composition which can be initiated by low grain detonating cord so as to minimize the fire hazards typically associated with seismic testing. Preferred compositions within...
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4508580 |
Incendiary mixture constituted of metals
An incendiary mixture which is constituted of metals with at least one oxygen-supplying metal oxide and an organic binder, and/or a nitrate, chlorate, perchlorate or peroxide selected from the...
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4507161 |
Nitric ester explosive compositions
This invention concerns a dynamite type explosive composition which comprises at least one liquid explosive nitric ester and an emulsion composition comprising an oxygen-releasing salt phase, an...
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4500370 |
Emulsion blasting agent
A method for making a water-in-oil emulsion type explosive composition is disclosed. The method comprises combining a liquid carbonaceous fuel and an aqueous solution of at least one inorganic...
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4486317 |
Stabilization of thickened aqueous fluids
Thickeners, preferably galactomannans, in aqueous solutions or slurries, e.g., water gel explosives, oil well drilling muds, and hydraulic fracturing fluids, are stabilized against thermal...
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4474629 |
Oil shale retorting process for producing explosives
Raw oil shale is retorted to liberate an effluent product stream. Ammonia is withdrawn from the product stream and reacted to produce ammonium nitrate. Shale oil is separated from the product...
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4470855 |
Water-in-wax emulsion blasting agents
A water-in-wax emulsion explosive composition is provided wherein the continuous carbonaceous fuel phase comprises paraffin wax together with a minor amount of a rheology modifier and stabilizer...
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4456492 |
Melt explosive composition
This invention concerns a melt explosive composition which comprises as a first component a melt which is pourable, pumpable or flowable at a temperature in the range of from -10° C. to +90° C....
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4453989 |
Solid sensitizers for water-in-oil emulsion explosives
A water-in-oil emulsion explosive composition comprising a carbonaceous fuel, and inorganic oxidizer, an emulsifier, and a sensitizing/densifying agent of finely divided non-explosive material of...
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4448619 |
Emulsion explosive composition
This invention concerns a water-in-oil emulsion explosive composition which comprises a discontinuous aqueous phase containing one or more oxygen-releasing salts, a continuous water-immiscible...
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4439254 |
Solid sensitizers in water gel explosives and method
A sensitizing agent for water gel explosive compositions and process for preparing the same is provided which comprises an oxidizer, water, a gelling agent, and a cross-linker, and wherein the...
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4438700 |
White smoke spotting composition for training ammunition
A pyrotechnic spotting charge for training projectiles contains 30-50% zinc owder, 10-30% aluminum powder, 10-30% potassium nitrate or sodium nitrate, and 10-30% potassium perchlorate. The...
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4434017 |
Explosive composition
A gas-bubble-sensitized melt explosive composition, which is not deleteriously affected by pumping, containing certain surfactants which inhibit the disengagement of the sensitizing gas bubbles.
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4430241 |
Mixed nitrate salt heat transfer medium and process for providing the same
A process for producing particles of a non-friable eutectic mixture of sodium nitrate and potassium nitrate for solar power station use is disclosed. In one embodiment of the invention, the...
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4421578 |
Castable high explosive compositions of low sensitivity
A high explosive composition comprising 2 to 57% ammonium nitrate 2 to 50% ethylenediamine dinitrate 1 to 10% potassium nitrate 1 to 80% nitroguanidine These explosive compositions...
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