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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Extrudable black body decoy flare compositions and methods of use US09311298 1999-05-14 US06312625B1 2001-11-06 Daniel B. Nielson; Dean M. Lester
In this process for producing a black body decoy flare, a composition which, when combusted, provides black body radiation is extruded. The compositions generally include from about 40% to about 70% metal such as magnesium or aluminum, from about 10% to about 40% polytetrafluoroethylene, and from about 8% to about 30% binder. Important to the operation of the invention is the production of carbon upon combustion of the composition. Accordingly, polyaromatic thermoplastics, such as polystyrene and dimethyl phthalate, serve as the binder.
142 PYROTECHNIC ACTIVE MASS WITH IGNITION AND COMBUSTION ACCELERATOR US09296585 1999-04-23 US20010013384A1 2001-08-16 PETER RAYER; KLAUS HIEKE; MARKUS SCHOLZ
A pyrotechnical object is made by compressing a pyrotechnical mass, and introducing into the mass an ignition and combustion accelerator in the form of a propellant powder. The propellant powder could be mixed with the mass prior to compression. Alternatively, the propellant powder could be pressed into an ignition surface of the mass after the pressing. The propellant powder may comprise basic cellulose and/or nitro-cellulose.
143 Infrared illumination compositions and articles containing the same US09182029 1998-10-29 US06230628B1 2001-05-15 Patricia L. Farnell; Russell Broad; Stuart Nemiroff
An infrared illuminating composition comprising approximately 70 weight % of an oxidant evidencing strong emission in the NIR region selected from the group consisting of potassium nitrate, cesium nitrate and mixtures thereof; 9 weight % of a metallic fuel evidencing low visible light emission, 4 weight % of an epoxy resin binder, 16 weight % of a NIR light enhancer and 1% by weight of an additive selected from the group consisting of a double base propellant material, a triple base propellant material and mixtures thereof.
144 Activated metal and a method for producing the same US09469491 1999-12-22 US06193814B1 2001-02-27 Alfonso L. Baldi
The present invention relates to the preparation of activated metal, particularly activated tinplate, and the activated metal itself. The activated metal is highly reactive with oxygen and can be used as a pyrophoric decoy material or as a catalyst.
145 Flares having igniters formed from extrudable igniter compositions US09119518 1998-07-21 US06170399B2 2001-01-09 Daniel B. Nielson; Gary K. Lund; Reed J. Blau
The present invention relates to flares and other solid propellant devices, rockets or the like, equipped with an igniter or igniter system which is based in whole in part on an extruded igniter stick.
146 Castable infrared illuminant compositions US386328 1995-02-10 US6123789A 2000-09-26 Daniel B. Nielson
Compositions are provided which, when burned, produce significant levels of infrared radiation, but only limited levels of visible radiation. The basic components of the compositions include a binder, an oxidizer, and a fuel, where the binder also acts the fuel. Preferred oxidizers include those compounds which produce large quantities of infrared radiation when the flare composition is burned. Such oxidizers include potassium nitrate, cesium nitrate, rubidium nitrate, and combinations of these compounds. Selection of the binder is important in order to provide the composition with the desirable characteristics identified above. The binder of the present invention does not produce significant soot. At the same time, the binder serves to form a composition which is processible, avoids chunking, and is compatible with the oxidizers used. It has been found that polymer binders which include relatively short carbon chains (1-6 continuous carbon atoms) are preferred. Examples of such polymers include polyesters, polyethers, polyamides, and polyamines.
147 Energetic compositions containing no volatile solvents US626616 1996-03-28 US5623120A 1997-04-22 Jerry S. Brown; John A. Conkling
Energetic compositions and the process for obtaining same for use as the itable composition in infrared-emitting decoy flares, for high-temperature ignition compositions, and the like, are disclosed. These compositions are attained by combining a fluorinated hydrocarbon, either in a liquid state or as a water emulsion, with a powdered metal fuel such as aluminum, magnesium, titanium or zirconium to yield volatile solvent free energetic compositions.
148 Spectrally balanced infrared flare pyrotechnic composition US310856 1994-09-22 US5472533A 1995-12-05 David W. Herbage; Stan L. Salvesen
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 perchlorate, potassium nitrate and Viton.RTM. A fluoroelastomer. The second composition includes magnesium, polytetrafluoroethylene and Viton.RTM. A fluoroelastomer. Adjusting the ratios between the compositions matches any particular aircraft's spectral signature.
149 Shotgun slug tracer round and improved shotgun slug US889065 1992-05-26 US5235915A 1993-08-17 Robert D. Stevens
A plastic cartridge has a base with a primer pocket and a primer mounted therein. A propellant charge is located within the cartridge and a plastic, collapsible wad is positioned within the cartridge above the propellant charge. A strawlike fusing channel extends through the wad into the propellant charge and is packed with an igniter charge. The fusing channel communicates between the propellant charge and a tracer charge packed within a cavity in a lead shotgun slug. The wad has a plurality of upwardly extending petals which surround the slug within the cartridge and which engage with the rifling of a shotgun barrel when the round is fired.
150 Encapsulated signal illumination flare composition US440065 1989-11-22 USH925H 1991-06-04 David C. Sayles
An encapsulated signal illuminant flare composition is comprised of powde magnesium from about 45 to about 60 weight percent, of powdered sodium nitrate from about 32 to about 49 weight percent, and of capsular adhesives containing about 91 weight liquid materials contained within capsules having cell walls of equal parts Arabic gum and gelatin of about 9 weight percent to yield a binder from about 6 to about 12 weight percent. The composition ingredients are blended in a dry mixer to achieve a homogeneously, blended signal illuminant flare composition. The blended signal illuminant flare composition is incrementally fed into a flare press for compacting into cartridges in two increments at about 14,000 psi pressure which ruptures the capsular adhesives by hydraulic forces to achieve polymer mixing and the surrounding of the powder ingredients with the binder ingredients to form a very homogenous signal illuminant flare composition mass. The flare composition mass is cured for about 16 hours at a minimum temperature of about 170.degree. F. The capsular adhesives are blended of about one part of an epoxy adhesive to two parts of a polyester adhesive. The capsular epoxy adhesive is comprised of about 79 weight percent diglycidyl ether of Bisphenol A and of about 12 weight percent of benzoyl peroxide contained in capsules having cell walls comprised of Arabic gum and gelatin of about 9 weight percent. The capsular polyester adhesive is comprised of about 86 weight percent polyester resin, of about 5 weight percent N, N'-dimethyl-o-toluidine contained in capsules having cell walls comprised of Arabic gum and gelatin of about 9 weight percent.
151 Synergistic composite pyrotechnic material US439067 1989-11-17 US4978400A 1990-12-18 Paul W. Juneau, Jr.; Howard Semon
The invention provides a pyrotechnic composite and process for preparing the same, wherein the pyrotechnic composite comprises a mixture of an alkaline earth metal sulfate, particulate boron and at least one additional particulate metal which is capable of exothermically reacting with boron. The exothermic reaction between the components of the pyrotechnic composite releases a thermal radiation of at least about 300 W/cm.sup.2 -Steradian and a visible light energy of at least about 1.0.times.10.sup.4 LUX.
152 Coating and compositions US440026 1989-11-21 US4977036A 1990-12-11 Alfonso L. Baldi
Workpieces are very rapidly diffusion coated by heating the packed workpieces at a rate that brings the workpieces to diffusion-coating temperature and then completing the diffusion coating, all in less than 50 minutes, then cooling. Workpiece can have top coating layer of aluminum flake covered by a layer of extremely fine alumina or silica in a magnesium chromate binder, to provide surface having roughness at least about 10 micro-inches smoother than before the top coating. Used aluminized jet engine hot section members can be reconditioned by a fluoridizing treatment that deoxidizes and also removes residual aluminizing, so that the members can then be repaired if necessary and re-aluminized.
153 Coating and activation of metals US182718 1988-04-18 US4970114A 1990-11-13 Alfonso L. Baldi
Pyrophoric powder can be coated on boron or carbon fibers or sintered with combustible particles. Carbon can be kept from contaminating diffusion-treated workpieces, by conducting diffusion treatment in retorts containing little or no carbon. Porosity can be created by subjecting workpiece to diffusion conditions in contact with depleting material such as powdered nickel or high-nickel aluminides or cobalt or high-cobalt aluminides. Aluminum particles can be electrophoretically deposited on foil and then diffused in. Leaching aluminum out with caustic is improved when a little H.sub.2 O.sub.2 is present in the caustic. Subsequent treatment of the leached surface with weak acid further improves pyrophoricity, and folding of the pyrophoric member extends its pyrophorically-generated high temperature dwell. Resin foil containing pyrophoric particles makes effective decoy.
154 Metal treatment US335240 1989-04-10 US4957421A 1990-09-18 Alfonso L. Baldi
Titanium and titanium alloy surfaces can be diffusion coated, and portions of the surface protected against such coating by localized powdered masking layer of about 43% titanium, aluminum in an amount equal to the aluminum content of the surface masked, as well as other metals in an amount about one-fifth of their content in the surface masked. Diffusion coating can be speeded by high heat input. Diffusion coating packs can be made with chemically reduced metal content of sludges. Diffusion aliminizing followed by caustic leaching to remove much of the diffused-in aluminum, yields catalytically and pyrophorically active porous surface that also accepts top coatings. Mixtures of aluminum powder with nickel and/or iron powders react when heated to form Raney-like product that can be leached to become pyrophoric, and when held on a metal foil or gauze web will adhere to the web so that leached product can be used as pyrophoric foil for decoying heat-seeking missiles. Such adhesion is improved by addition of small amount of copper.
155 Pyrophoric flame composition US29809 1979-04-13 US4230509A 1980-10-28 Milton A. Tulis; Charles M. Lawson; Lawrence D. Whiting, III
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.
156 Simultaneous yellow smoke and yellow flame composition containing bismuth subnitrate US935423 1978-08-21 US4184901A 1980-01-22 John E. Tanner, Jr.; Henry A. Webster, III
A pyrotechnic composition which, when burned, produces yellow smoke and yellow flame. The composition is comprised of between 5 and 30 percent of a fuel which is either magnesium or silicon, between 65 and 85 percent of bismuth subnitrate and between 5 and 13 percent of an epoxy binder.
157 Method of producing flint US706826 1976-07-19 US4089706A 1978-05-16 Hans Zeiringer
Flint is produced from a mischmetal and iron melt by permitting the alloy melt to cool in a mold at a slow enough rate that, as the solidification point of the melt is approached, its temperature is maintained at 800.degree.-600.degree. C for at least 10 minutes. The alloy melt is subsequently extruded and the extrudate is subjected to a heat treatment at temperatures from 370.degree.-470.degree. C for 1/2 to 4 hours, the heat treatment being discontinued before the limit value of the thermodynamic equilibrium has been reached.
158 Artificial fire place logs which burn with colored flame and process for making same US166551 1971-07-27 US4062655A 1977-12-13 William Hughes Brockbank
An artificial fireplace log containing pyrogenic coloring matter which produces colored flames upon ignition of the log continuously until the log is consumed. The log is composed of combustible materials, preferably sawdust and wax, and contains pyrogenic coloring matter distributed throughout the log mix. Additional pyrogenic coloring matter is adhered to the surface of the log, preferably along two adjacent longitudinal sides corresponding to the top and front of the log as it is positioned in a fireplace. The process of the invention includes the steps of preparing an artificial log mix containing pyrogenic coloring matter, molding an artificial log with the mix, and adhering pyrogenic coloring matter, preferably in the form of dry, finely-divided particles, along the surface of the log.
159 Incendiary composition US676826 1976-04-14 US4019932A 1977-04-26 Fred Schroeder
There is described an incendiary composition consisting essentially of by weight 20-40 percent magnesium powder, 30-60 percent metallic oxide and the remainder of elastomeric polysiloxane which serves as a binder the amount of polysiloxane being at least 10 percent. A second type of composition consists of 20-50 percent magnesium powder, 20-30 percent polytetrafluoroethylene in particulate form, and the remainder of elastomeric polysiloxane. A third type of composition consists of mixtures of the first and second types in proportions according to the desired specific gravity of the incendiary.
160 Illuminative and incendiary explosive munitions US649624 1976-01-16 US4015529A 1977-04-05 Charles A. Knapp
This invention involves the incorporation of a relatively small quantity ofirconium or other pyrophoric material in the high explosive composition of a munition, which provides incendiary, terrain illumination, spotting, and enhanced antipersonnel properties to the munition with little or no diminution of its explosive and fragmentation power.
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