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7063810 |
Co-extrusion of energetic materials using multiple twin screw extruders
The invention comprises a continuous, integrated process to produce a multiple layered energetic material where the layers comprise energetic materials having, at least, two different burning...
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6444062 |
Perforated propellant and method of manufacturing same
The present invention is directed to a propellant composition made from a lacquer, the lacquer comprising: (a) from about 15 to about 70 wt % of an organic solvent; (b) from about 0.1 to about 2.5...
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6361719 |
Method for manufacturing of black powder and black powder substitute
Processes are disclosed for making black powder and black powder substitutes without requiring binder-effective amounts of a binder and lacquers.
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6319341 |
Process for preparing a gas generating composition
A process for preparing a gas generating composition (62) for a vehicle occupant protection apparatus (110) comprises the following steps. Desired quantities of ingredients of the gas generating...
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6315930 |
Method for making a propellant having a relatively low burn rate exponent and high gas yield for use in a vehicle inflator
A method for making a propellant composition that results in a desirable gas output when combusted. The propellant can be part of an inflator used in a vehicle for inflating an air bag. The...
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6238501 |
TNAZ compositions and articles, processes of preparation, TNAZ solutions and uses thereof
The invention is a composition containing high loadings of TNAZ that are made by crash precipitation with water as the precipitation agent. The compositions are in the form of powders, which can be...
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6217799 |
Method for making high performance explosive formulations containing CL-20
A water slurry method of making high performance explosive compositions and ordnances using the explosive compositions as an explosive ingredient for high performance, low sensitivity explosive...
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6171530 |
Process for the manufacture of high performance gun propellants
A process for manufacturing a high performance gun propellant containing an energetic thermoplastic elastomeric binder and a high-energy oxidizer is disclosed. The process includes preparing or...
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6165307 |
Multi-component 3-dimensional energetics method and construction
A multi-component three dimensional energetic device and the method of maacturing it. The method includes the steps of forming a quantity of an energetic material into a plurality of sheets having...
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5920030 |
Methods of blasting using nitrogen-free explosives
A method of blasting using non-nitrogen containing explosives which protect the environment from pollution of nitrogen compounds is provided. The method includes the following steps: (1) combining...
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5859090 |
Injection-modulable, polycaprolactone-based, biodegradable plastic articles such as shotshell components, and method of manufacturing same
Nontoxic, biodegradable injection-molded, plastic shotshell components, and method of manufacturing same, the components having a fused degradation composition comprising as its active ingredients...
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5844322 |
Low energy fuse and method for its manufacture
A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least...
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5831339 |
Continuous process for solvent-free manufacture of heat-curable composite pyrotechnic products
The present invention relates to the field of the continuous manufacture of composite pyrotechnic products. A heat-curable liquid binder (3) is mixed with a thickening filler (4) in a mixer (1) so...
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5716557 |
Method of making high energy explosives and propellants
A method of formulating high energy explosives and propellants, including e steps of melting the explosive at a temperature just above its melting temperature, admixing and dissolving or...
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5672839 |
Method and apparatus for controlled refining of explosive compositions
An apparatus for the controlled refining of an emulsion explosive composition is shown. The apparatus includes a pump for pumping the pumpable explosive composition, a conduit for transporting the...
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5670098 |
Black powder processing on twin-screw extruder
A continuous process of manufacturing black powder and black powder substitute using a twin screw extruder is disclosed. Guar gum mixed with the composition at a concentration in the range from...
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5619073 |
Propellant grains and process for the production thereof
A batch process produces unitary grains of propellant material. A constituent mixture of the material is prepared by mixing constituents while heating to at least a predetermined pouring...
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5610444 |
Process for continuous manufacture of pyrotechnic charges containing a silicone binder and compositions capable of being used by this process
The invention relates to a process for continuous manufacture of pyrotechnic charges containing a silicone binder and to the compositions capable of being used by this process. The following are...
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5565150 |
Energetic materials processing technique
Energetic materials are continuously processed in a twin-screw extruder to provide safe, low-cost, high quality manufacturing of pyrotechnic compositions, gun propellants, and high explosives. The...
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5520756 |
Stable plasticizers for nitrocellulose nitroguanidine-type compositions
Stable plasticizer system and corresponding nitrocellulose/nitroguanidine nitramine-type LOVA propellant compositions utilizing such system.
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5487851 |
Composite gun propellant processing technique
A continuous extrusion process for manufacturing composite gun propellant is disclosed. The disclosed process is particularly suitable for preparing gun propellant formulations based upon a...
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5433899 |
Process of manufacturing a gas generating material
Graphite fibers (62) are mixed with other materials (22) to form gas generating material (10) for use in an air bag inflator. The graphite fibers are first chopped to a desired short length by...
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5266242 |
Method and apparatus to prepare a tribasic propellat charge powder
The invention relates to a method of and an apparatus for producing tribasic propellant charge powders. An operationally safe and continuous course of the production process is obtained according...
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5251531 |
Method and apparatus to prepare monobasic propellant charge powders with alcohol and ether as solvents
In the production of monobasic propellant charge powders with alcohol and ether as solvents there is the risk of ether bubbles forming in the propellant charge powder material, and those bubbles...
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5209876 |
Cloth-lined interceptor motor insulation for strong insulation-to-propellant interlock
A method of providing a very strong mechanical interlock between the insuor and propellant of an interceptor rocket motor by employing a first lay-up material comprised of a cloth mat of woven...
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5156779 |
Process and apparatus for producing ultrafine explosive particles
A method and an improved eductor apparatus for producing ultrafine explosive particles is disclosed. The explosive particles, which when incorporated into a binder system, have the ability to...
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5129304 |
Method and apparatus for processing potentially explosive and sensitive materials for forming longitudinally perforated extrudate strands
A manifolded, multiple-pin die apparatus and method processes potentially explosive material to form longitudinally perforated cylindrical pellets for use as gun propellants. A main entrance...
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5125684 |
Extrudable gas generating propellants, method and apparatus
A stable extrudable non-azide crash bag propellant composition for generating high quality nitrogen gas and a low temperature process for producing the same from an extrudable mass containing an...
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5114630 |
Continuous manufacture and casting
Fluid products, particularly highly filled materials, are manufactured and cast in a continuous system utilizing feedforward composition quality control and plug flow. Liquid and solid raw are...
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5087393 |
Smoke producing article
A smoke producing article comprises preformed granules of a smoke generating material admixed with an inert binder. The granules are compressed at such a pressure and for such a period of time that...
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5084218 |
Spheronizing process
A process for making a body of gas generating material comprising the steps of preparing a slurry of the ingredients of said gas generating material; extruding said slurry into a plurality of...
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5068066 |
Process and apparatus for producing propellant charge granular material
For producing propellant charge granular material several small diameter pellant charge strands are continuously extruded, individually placed on a support behind the extruder and conveyed over a...
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5061409 |
Extrusion of impact and friction sensitive highly energetic materials
Substituting non-metallic screw elements for the previously used metal screw elements in twin-screw extruders reduces the hazards inherent in the extrusion of highly energetic materials which...
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4995802 |
Apparatus for extruding plastic materials
An apparatus for extruding plastic materials, particularly plastic explosives or propellants, has a casing, at least one pressing member moving therein, e.g. a rotating extruder screw and a shaping...
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4963296 |
Process for the preparation of propellant charge powder
A process is provided for the preparation of dibasic propellant charge powder by a solvent-free process, in which a continuous flow of raw powder mixture moist with water is kneaded at an elevated...
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4952255 |
Extrudable PBX molding powder
An extrudable plastic bonded explosive molding powder is provided and conns about 20 percent by weight ethylenevinyl acetate copolymer and 80 percent by weight PETN.
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4931229 |
Method and apparatus for protecting a screw extruder producing strand-shaped explosives and propellants
A method and apparatus for protecting a mixing apparatus for producing strand-shaped explosives and propellants in a twin-shaft screw extruder, the housing of which is formed of housing parts...
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H000775 |
Method of assembly of compacted powder and explosive charge for effective dissemination
A minimum hazard visual screening cloud-forming product is made by forming slurry of fine spheres of titanium dioxide composition, of submicron diameter, together with a volatile surface-wetting...
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4920079 |
Process for isostatically pressing explosive charges
A water-filled pressure chamber (7) loaded by conventional pumps at pressures of several thousand bars is used to isostatically press explosive charges. Inside this pressure chamber (7) is a...
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4867920 |
Emulsion explosive manufacturing method
The present invention provides a means by which chemically or thermally gassed emulsion explosives can be packaged in symmetrical cartridges, such as cylindrical paper packages having crimped ends....
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4842658 |
Aging-resistant single-base powder, process for manufacture, and application to gas generators
The present invention relates to nitrocellulose single-base propellent powders which exhibit good resistance to aging and to moisture. The powders according to the invention characteristically...
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4836961 |
Method of and apparatus for casting solid propellant rocket motors
A method of and apparatus for casting uncured solid propellant in solid propellant rocket motors includes a casting bayonet having annular slits formed in the exit end thereof that improve the...
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4810430 |
Deformable pulp paper product, its method of manufacture and method of use
A deformable molded fiber product is formed by a method of felting, pressing and drying the compressed product having a uniformly spaced series of low density ridges on one surface. These ridges...
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4801413 |
Protection process in the wrapping of temperature- or pressure-sensitive materials
In the production of explosive or detonating cords which are covered with plastic, a preliminary cord, which contains the explosive substance, is guided through the opening of an extrusion nozzle...
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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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4792423 |
Method for making solid rocket propellant
A method of making solid rocket propellant that facilitates tailoring of a variable burn rate. The method comprises molding binder and fuel and/or oxidizer to produce, for example, a molded strip...
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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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4776993 |
Extrusion method for obtaining high strength composite propellants
A method of manufacturing composite propellants which include compounding e propellant with an extended final mix cycle, partially curing the propellant mixture to a specified hardness, and...
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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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4766799 |
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...
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