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4820362 |
Metal diffusion and composition
Low alloy steel tubes are decarburized, heavily diffusion chromized and heavily diffusion aluminized to protect them against sulfidation. For the diffusion they can be supported upright with one...
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4820361 |
Emulsion explosive containing organic microspheres
The present invention relates to an improved explosive composition. More particularly, the invention relates to a water-in-oil emulsion explosive having improved stability and a lower viscosity....
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4818309 |
Primer composition
An explosive composition comprising (a) a water-in-oil emulsion comprising (i) a discontinuous aqueous phase comprising at least one oxygen-releasing salt, (ii) a continuous water-immiscible...
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4815386 |
Pyrophoric material with metal skeleton
Pyrophoric preparations made of crushable open-celled metal skeleton such as honeycomb, metal foam or expanded twisted foil, filled with pyrophoric powder, so that when crushed to make a compact...
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4812179 |
Method of increasing the burning rate enhancement by mechanical accelerators
The mechanical burning rate accelerators, e.g., graphite linters or alumi whiskers, which are employed to enhance the burning rate of solid propellants are modified by depositing specks of metal...
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4808251 |
Water-in-oil emulsion explosive compositions containing organophilic smectite clay
The present invention relates to improved emulsion explosive compositions and their manufacture. More particularly, the invention relates to the provision of improved emulsion explosive...
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4799979 |
Heat generation
Heating or heat generation in general can be from activated aluminides of molybdenum, zirconium or other similar ignitible metals. Activation is by leaching out some of the aluminum and leaves a...
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4798636 |
Composite solid propellant
In order to achieve a stable burn characteristic, improved mechanical proties and reduced smoke development during burn, a composite solid propellant includes nitrides, borides, and carbonitrides...
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4793955 |
Method and apparatus for casting solid propellant rocket motors
A circular slit plate having slits therein that are symmetrically positioned and originate near the center of the plate and extend radially toward the outer diameter thereof is used to deaerate...
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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...
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4790890 |
Packaged emulsion explosives and methods of manufacture thereof
The present invention relates to packaged explosives and methods of manufacture thereof and more particularly to packaged emulsion explosives. The term "emulsion" as hereafter used shall mean an...
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4784706 |
Emulsion explosive containing phenolic emulsifier derivative
The invention relates to a water-in-oil emulsion explosive comprising a water-immiscible organic fuel as a continuous phase; an emulsified aqueous inorganic oxidizer salt solution as a...
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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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4775431 |
Macroemulsion for preparing high density explosive compositions
The present invention provides a water-in-oil macroemulsion for use in combination with a solid oxidizer in preparing a high density explosive composition. The macroemulsion comprises 1-70% by...
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4774888 |
In situ disposable gel canister
A composition for making an in situ disposable propellant canister for utilization in controlled pulse fracturing. Said canister is composed of a porous light fabric material in combination with a...
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4767577 |
Process and apparatus for producing plastic-bound propellant powders and explosives
A process and apparatus for producing plastic-bound propellant powders and explosives in crystalline form, with the apparatus including an extruder comprising a casing with a feed opening,...
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4767476 |
Method of and device for storing liquid explosives in the form of an emulsion in water
A container for the temporary storage of an emulsion of explosive and water consisting of two chambers that communicate through a gap at the floor and into which water is introduced into up to a...
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4764230 |
Explosive composition
A water-in-oil emulsion explosive composition comprising: a discontinuous aqueous oxidizer-phase comprising dissolved therein an oxygen releasing salt component comprising ammonium nitrate; a...
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4764229 |
Sensitization of inorganic oxidizer explosives
Sensitized inorganic nitrate mixtures with high brisance are provided in which oxygen balance is attained by the incorporation of aluminum dust and hydrocarbons. Cap sensitivity is achieved by...
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4758287 |
Porous propellant grain and method of making same
A process for preparing a porous propellant grain which comprises blending at least two combustible materials to form a homogeneous mixture, adding a predetermined amount of a liquid dispersant to...
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4756779 |
Process for the production of particulate, water resistant explosives based on ammonium nitrate
An improved process for the manufacture of water resistant dry blasting agents. Powdered, solid, water blocking agent and solid fuel, if required, is added as a suspension in a liquid non-hydrating...
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4756776 |
Process for the production of an explosive and the explosive
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...
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4746380 |
Explosive compound comprising ammonium nitrate and glycine
The invention relates to a new explosive compound which is an associated compound of ammonium nitrate and glycine and also includes explosive composition containing this compound. The compound ANGC...
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4737207 |
Method for the preparation of a water-in-oil type emulsion explosive and an oxidizer composition for use in the method
A method and an oxidizing composition for preparation of a water-in-oil type emulsion explosive in which a pre-emulsion is formed from a fuel phase and a first part of an oxidizer phase, an...
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4732627 |
Method for improving the quality of an emulsion explosive composition
A method and apparatus for improving the quality of an emulsion explosive composition by selecting an electrical characteristic of the composition, establishing a predetermined range of values...
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4732626 |
Water-in-oil emulsion explosive composition
A water-in-oil emulsion explosive having a high resistance against dead pressing is obtained by adding a cushioning medium having a high impact energy-absorbing property to a water-in-oil emulsion...
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4728376 |
Explosive composition and method
Certain classes of organic acids, and salts of those acids and in particular ascorbic acid and erythorbic acid and the salts thereof, and mixtures thereof, which have certain antioxidant and food...
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4722757 |
Solid explosive composition
This invention provides a solid explosive composition comprising a low-water content melt-in-fuel emulsion when prepared at elevated temperature which solidifies on cooling. The emulsion comprises...
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4722814 |
Propellent charge and method of making the charge by crushing parts with holes
A propellent charge for cartridge ammunition of propellent powder bodies of a certain geometric form is produced by filling the propellent powder bodies preferably in partial amounts and by means...
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4714503 |
Emulsion-containing explosive compositions
In emulsion blend explosives, the replacement of coarse salt particles, e.g., prills, by fines, i.e., particles which pass a No. 50 U.S. sieve, increases the water resistance of the explosive...
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4711678 |
Process for the preparation of a water-in-oil emulsion explosive and a fuel phase for use in such process
Fuel phase for use as a continuous phase together with a discontinuous aqueous oxidizing salt phase in water-in-oil emulsion explosives, comprising a carbonaceous fuel and at least one but not all...
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4710248 |
Emulsion explosive composition
An emulsion explosive comprising substantially an immiscible discontinuous oxidizer-phase dispersed throughout a continuous fuel phase with a modifier comprising hydrophilic and lipophilic moieties...
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4705655 |
Process for the manufacture of combustible articles by embossing combustible paper and combustible articles thus produced
Process for the manufacture of combustible articles by embossing combustible paper and combustible articles thus produced. The invention relates to a process for the manufacture of combustible...
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4698108 |
Castable smoke-generating compounds effective against infrared
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...
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4698105 |
Water-in-oil type emulsion explosives
Disclosed herein are water-in-oil type emulsion explosives comprising an aqueous solution of oxidizing agent, an oily material, hollow microspheres and an emulsifier containing from 0.1 to 10% by...
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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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4693765 |
Gel type slurry explosive and matrix and method for making same
A matrix material to be added to a standard ammonium nitrate-fuel oil dry explosive to form an economical slurry explosive having excellent water resistant properties includes an oxidizer solution...
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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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4685375 |
Mix-delivery system for explosives
Method and apparatus for making aqueous slurry explosives are disclosed. The components of the aqueous slurry explosive are mixed in a variable speed rotary mixer where the speed of the mixer is...
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4681643 |
Fast burning propellants
A solid or semisolid propellant comprising grains of propellant or propellant components bonded together so as to create voids within the propellant volume, said grains bonded together with...
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4678524 |
Cast explosive composition and method
The present invention relates to a cast explosive composition and other energetic compositions such as propellants. (As used herein, the term "explosive" also shall include other energetic...
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4676849 |
Gas bubble-sensitized explosive compositions
This invention relates to the preparation of gas bubble-sensitized explosive compositions which are liquid during their manufacture. It is possible to achieve particularly fine bubble sizes and...
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4675059 |
Non-toxic, non-corrosive priming mix
This invention relates to priming compositions for ammunitions containing manganese dioxide as oxidizer agent in the primer mix, and to the rimfire cartridge containing dinol, manganese dioxide,...
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4664729 |
Water-in-oil explosive emulsion composition
Provided is a water-in-oil explosive emulsion composition having a 1/2 cartridge gap sensitivity of at least about three inches, yet a water content of at least about 10 percent by weight. The...
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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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H000273 |
Processing of high solids propellant
The mixing of high solids loaded propellants is accomplished under reduced viscosity conditions by employing near critical liquid (NCL) carbon dioxide as the processing fluid in a volume amount...
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4659387 |
Nitrocellulose moistened with tertiary alcohols and the use thereof in polyurethane lacquers
Nitrocellulose moistened with alcohol, particularly for polyurethane lacquers, characterized in that a lower aliphatic tertiary alcohol is used as moistening agent.
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4637848 |
High density gel explosive
High density water gel explosives having relatively large amounts of low density sensitizers are prepared by evenly dispersing a densifying material therethrough. Separation of the densifying...
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4632714 |
Microcellular composite energetic materials and method for making same
Essentially anhydrous energetic compositions, including explosives, propellants, flares, and gas generators, are initially formed at process temperatures above the solidification temperature of...
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4615751 |
Explosive which includes an explosive emulsion
This invention relates to an explosive. In particular, the invention relates to an explosive of the emulsion type in which an oxidizing salt-containing component forms the discontinuous phase in an...
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