Having Embedded Reinforcing Or Burning Control Means Patents (Class 102/289)
  • Patent number: 10077018
    Abstract: A side curtain airbag assembly includes an inflatable cushion and a sock for housing the cushion in a folded state. At least one of the cushion and sock includes a plurality of spaced markings arrayed along its respective longitudinal extent. Each marking is defined by at least two indicia including a first indicium and a second indicium. Each of the first indicium and second indicium is formed from a plurality of similarly shaped and sized interconnected pixels which together provide for first and second indicia having a predetermined height and width.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 18, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: James Wesley Adams, Alec Peter Bacon, Scott A. Hunter
  • Patent number: 9078294
    Abstract: The present invention provides devices and methods for making nano structures such a nanoheater. In one embodiment, the nanoheater element comprises a first reactive member and interlayer disposed in communication with at least a portion thereof. Preferably, contact between the first and second reactive members of the nanoheater element can yield at least one exothermic reaction. A nanoheater device of the invention can optionally comprise a substrate on which the first reactive member is positioned in combination with other components. The invention also provides a nanoheater system comprising a plurality of nanoheater elements. Exemplary nanoheater elements and systems can be used to perform a method of the invention in which heat is produced. Methods includes processes for fabricating nanostructures such as layered devices, nanorods and nanowires.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 7, 2015
    Assignees: University of Massachusetts, Northeastern University
    Inventors: Charalabos C. Doumanidis, Teiichi Ando, Julie Chen, Claus G. Rebholz
  • Patent number: 8607704
    Abstract: The invention relates to a method of, in the electrical ignition of a propellent charge (1) provided with an electrically conductive surface coating (5) and comprising one or more propellant components (3), ensuring that ignition and progressive combustion of the propellent charge take place. The method is characterized in that said electrically conductive surface coating, when ignition of the propellent charge is desired, is connected to an electrical high-voltage source (6), in that said high-voltage source is made to generate at least one high electrical pulse to said connected electrically conductive surface coating, and in that said at least one high electrical pulse produces an instantaneous flashover ignition of the electrically conductive surface coating of the propellent charge and of all its propellant components, simultaneously. The invention also relates to a propellent charge and to an ammunition shot comprising the propellent charge.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: December 17, 2013
    Assignee: BAE Systems Bofors AB
    Inventors: Ola Stark, Lennart Gustavsson, Johan Dahlberg, Lars-Peter Svanberg
  • Patent number: 8561541
    Abstract: A propellant charge body for insertion into a propellant charge chamber in a firearm for firing caseless ammunition has a base body which contains a propellant charge. The diameter of the base body is less than the internal diameter of the propellant charge chamber. Radial projections are formed in one or more subareas on the circumference of the base body and match the radius of the base body in these subareas to the internal radius of the propellant charge chamber.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 22, 2013
    Assignee: Diehl BGT Defence GmbH & Co. KG
    Inventor: Axel Pfersmann
  • Patent number: 8544387
    Abstract: A method for producing propellant charges with progressive combustion characteristic and a higher charge density than previously considered possible to achieve, intended in the first instance for direct-firing barrel weapons such as tank cannons. Combined in the charge are at least two radially perforated propellant tubes, which are arranged in their entirety inside or after one another, and which have at an e-dimension selected in relation to the actual type of propellant and its desired combustion characteristic, combustion or ignition channels, and which have circular outer and inner boundary surfaces, in conjunction with which, before initiation of the charge, at least one of the total number of outer surfaces of these propellant tubes that are available for initiation has been treated with an inhibition, surface treatment or surface intended to delay the propagation of ignition to that surface so that the combustion of the propellant tubes is partially mutually overlapping.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: October 1, 2013
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Patent number: 8156869
    Abstract: The present invention relates to a method of producing propellant charges (2) of multi-perforated stick propellant with maximized charge weights for sub-calibre, armour-piercing, high-velocity projectiles (3), which are provided, for example, with six to eight, fixed stabilizing fins (5-10). The invention also encompasses a multi-perforated stick propellant (11-12) intended for this purpose and a propellant charge produced from multi-perforated stick propellant according to the methods.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: April 17, 2012
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Patent number: 8034133
    Abstract: There is provided a gas generating composition having a low combustion temperature and a high burning rate. The gas generating composition comprises fuel and an oxidizing agent, and as necessary a binder and additives, the gas generating composition comprising at least one selected from the group consisting of glycine and a derivative thereof as the fuel. A combination of glycine as the fuel, basic copper nitrate as the oxidizing agent, and carboxymethyl cellulose or a salt thereof as the binder is preferable.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: October 11, 2011
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Shogo Tomiyama
  • Patent number: 7975468
    Abstract: An actuator stack is provided and having two or more individual actuators stacked in a longitudinal direction. Each of the two or more actuators having a solid detonation charge; a primer for igniting the detonation charge; and detonation wiring for powering the primer; and wherein at least one of the two or more individual actuators comprise an accelerating nozzle having at least a convergent section terminating at a throat.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: July 12, 2011
    Assignee: Omnitek Partners LLC
    Inventors: Jahangir S. Rastegar, Thomas Spinelli
  • Patent number: 7690308
    Abstract: Flares include grain assemblies comprising a combustible grain and a reactive foil positioned at least proximate to the grain and configured to ignite combustion of the grain upon ignition of the reactive foil. The reactive foil may include alternating layers of reactive materials. Methods of fabricating flares include at least partially covering an exterior surface of a combustible grain with a reactive foil to form a grain assembly, and inserting the grain assembly at least partially into a casing. The reactive foil may include alternating layers of reactive materials that are configured to react with one another in an exothermic chemical reaction upon ignition. Furthermore, methods of igniting a flare grain include initiating an exothermic chemical reaction between alternating layers of reactive materials in a reactive foil located proximate to the flare grain.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: April 6, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Daniel B. Nielson, Richard L. Tanner, Carl Dilg
  • Patent number: 7469640
    Abstract: Flares include grain assemblies comprising a combustible grain and a reactive foil positioned at least proximate to the grain and configured to ignite combustion of the grain upon ignition of the reactive foil. The reactive foil may include alternating layers of reactive materials. Methods of fabricating flares include at least partially covering an exterior surface of a combustible grain with a reactive foil to form a grain assembly, and inserting the grain assembly at least partially into a casing. The reactive foil may include alternating layers of reactive materials that are configured to react with one another in an exothermic chemical reaction upon ignition. Furthermore, methods of igniting a flare grain include initiating an exothermic chemical reaction between alternating layers of reactive materials in a reactive foil located proximate to the flare grain.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: December 30, 2008
    Assignee: Alliant Techsystems Inc.
    Inventors: Daniel B. Nielson, Richard L. Tanner, Carl Dilg
  • Patent number: 7409911
    Abstract: An apparatus for fracturing wells employs a propellant charge and an ignition cord wrapped around the outer surface of the propellant charge to rapidly ignite the outer surface of the propellant charge.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: August 12, 2008
    Assignee: Propellant Fracturing & Stimulation, LLC
    Inventors: John P. Tiernan, Richard S. Passamaneck
  • Patent number: 6979022
    Abstract: A flexible inflator for an inflation assembly and related gas generating propellant compositions are provided. The flexible inflator includes at least one elongated strand of a propellant co-extruded with a moisture barrier. The propellant compositions are adapted for co-extrusion with a plastic sheath which forms the moisture barrier surrounding the propellant and include a binder fuel component effective to render the composition flexible and to impart sufficient adhesive properties such that the propellant composition and the plastic sheath adhere together, and an oxidizer.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 27, 2005
    Assignee: Autoliv ASP, Inc.
    Inventors: Bradley W. Smith, Ivan V. Mendenhall
  • Patent number: 6817298
    Abstract: A gas-generator is disclosed to intensify output of oil, gas, including gas from coal formations, or metals extracted by underground leaching by breakage and thermo gas chemical treatment of the critical formation zone with gaseous combustion products from a solid propellant. The rate of increase of gas pressure is raised and the effect on the formation is enhanced by assembling the gas generator using coated and bare charges in a selected ratio. The charges burn radially, so the coated charges, which burn only from the center outwards, burn for longer and with a rising output. A two-peaked pressure characteristic is thus obtained. A high-velocity igniter may also be used to give a third, early pressure peak.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: November 16, 2004
    Assignee: GeoTec Inc.
    Inventors: Alexander S. Zharkov, Vladimir V. Kodolov, Yuri I. Maksimovich, Victor I. Maryash, Ivan N. Gayvoronskii, Nickolai I. Gribanov, Vasilii P. Zalogin, Vladimir D. Kroshchenko, Vladimir I. Pavlov, Norayr S. Sanasaryan
  • Patent number: 6668725
    Abstract: Technology for in situ remediation of undetonated explosive material. An explosive apparatus contains an explosive material in close proximity with a carrier containing microorganisms. An explosive mixture capable of self remediation includes an explosive material that is intermixed with or lies proximate to the carrier. The microorganisms are either mobile or temporarily deactivated by freeze drying until rehydrated and remobilized. The microorganisms are capable of metabolizing the explosive material. Examples of such microorganisms include Pseudomonas spp., Escherichia spp., Morganella spp., Rhodococcus spp., Comamonas spp., and denitrifying microorganisms. If the explosive material fails to detonate, the explosive is remediated by the action of the microorganisms. Remediation includes both disabling of the explosive material and detoxification of the resulting chemical compositions.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: December 30, 2003
    Assignee: The Ensign-Brickford Company
    Inventors: Farrell G. Badger, Brendan M. Welch, Ronald D. Thomas, Lyman G. Bahr, Dean F. Richards
  • Patent number: 6647888
    Abstract: An oxidizer package for a propellant system for a motor in which the oxidizer is separated from fuel grain, the oxidizer package comprising oxidizer material and an ignition system therefor in a wrapping or sealing material. A hybrid rocket comprising oxidizer material and fuel grain, the oxidizer material being separated from the fuel grain and being in the form of a single package or plurality of packages of oxidizer material and an ignition system therefor, said packages generally conforming to the shape of the rocket. A grid of a pyrotechnic material. A propulsion system for a hybrid rocket comprising oxidizer material in a matrix, mesh, wool, foamed metal or wires of structural or pyrotechnic material.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 18, 2003
    Inventors: Anthony Joseph Cesaroni, Michael J. Dennett, Korey R. Kline, Kevin E. Mahaffy, Kevin W. Smith
  • Patent number: 6644200
    Abstract: Technology for in situ remediation of undetonated explosive material. An explosive apparatus contains an explosive material in close proximity with microorganisms. An explosive mixture capable of self remediation in the form of an explosive material is intermixed with microorganisms. The microorganisms are either mobile or temporarily deactivated by freeze drying until rehydrated and remobilized. The microorganisms are capable of metabolizing the explosive material. Examples of such microorganisms include Pseudomonas spp., Escherichia spp., Morganella spp., Rhodococcus spp., Comamonas spp., and denitrifying microorganisms. A bioremediation apparatus that contains microorganisms and prevents contact between the microorganisms and explosive material is joined with an explosive apparatus that houses a charge of explosive material.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: November 11, 2003
    Assignee: The Ensign-Bickford Company
    Inventors: Farrell G. Badger, Brendan M. Welch, Ronald D. Thomas, Lyman G. Bahr, Dean F. Richards
  • Patent number: 6635131
    Abstract: An apparatus comprises a vehicle occupant protection device and a gas generating material, which, when ignited, produces gas to actuate the vehicle occupant protection device. The gas generating material comprises a cubane compound having the general formula: wherein R is selected from the group consisting of H and NO2.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: October 21, 2003
    Assignees: TRW Inc., TRW Vehicle Safety Systems Inc.
    Inventors: Harold R. Blomquist, Douglas P. Campbell, Peter Staudhammer
  • Patent number: 6634299
    Abstract: The invention relates to gas generator comprising an outer housing made of plastic, in which a pyrotechnic propellant charge and an igniter having its own igniter housing are accommodated. The igniter housing consists at least partially of plastic and is welded with the outer housing.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: October 21, 2003
    Assignee: TRW Airbag Systems GmbH & Co. KG
    Inventors: Johann Vetter, Ernst Enzmann
  • Patent number: 6632378
    Abstract: A nitrate ester plasticized energetic composition in which the binder is made of, prior to curing, lower alkylene glycol prepolymer blocks end-capped with ethylene glycol monomers and/or oligomers. The end-capped prepolymer blocks are preferably difunctional or trifunctional. The lower alkylene glycol are preferably propylene glycol, butylene glycol, and/or copolymers thereof. The difunctional end-capped alkylene glycol prepolymer blocks are cured with a diisocyanate or polyisocyanate. In the case of a trifunctional (or higher functional) end-capped alkylene glycol prepolymer block, preferably a diisocyanate is used to effect crosslinking.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: October 14, 2003
    Assignee: Alliant Techsystems Inc.
    Inventors: Ingvar A. Wallace, II, Jeffery Oyler
  • Patent number: 6615735
    Abstract: The invention relates to a pyrotechnic gas generator comprising a gas-tight outer housing consisting of at least two parts, a first part of which being a receiving part for pyrotechnic material and a second part of which being a base part which is connected with the receiving part by welding so as to form the outer housing. One of both parts has a radially projecting, surrounding flange with an outer peripheral edge and the other part has an axially extending, rim-like projection circumferentially surrounding said peripheral edge and having an inner surface which is contacted by the peripheral edge. The welding of the first and second parts is provided at the flange.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 9, 2003
    Assignee: TRW Airbag Systems GmbH & Co. KG
    Inventors: Ernst Enzmann, Johann Vetter
  • Patent number: 6571713
    Abstract: A vessel for a gas generator is formed of a cylindrical body, and at least one partition wall situated inside the body to divide the interior of the body into a plurality of chambers. The partition wall has a plastic deforming portion at an outer periphery thereof, which closely contacts an inner peripheral surface of the vessel by causing plastic deformation in a diameter-increasing direction. The partition wall can be easily secured to the vessel, and the vessel can be manufactured at a low cost.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: June 3, 2003
    Assignee: Takata Corporation
    Inventor: Koji Koga
  • Patent number: 6516724
    Abstract: The invention relates to a gas generator comprising a generator housing which has a base part, and an electric igniter which has a rear side, is fastened in the base part and has connection lines on the rear side. The gas generator further comprises a propellant charge in the generator housing, the propellant charge being provided outside the igniter and an insulating bush surrounding the connection lines and fastened to the generator housing. The insulating bush consists of plastic and contains electrically conductive particles.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 11, 2003
    Assignee: TRW Airbag Systems GmbH & Co. KG
    Inventors: Thomas Maier, Ernst Enzmann
  • Patent number: 6508177
    Abstract: An explosive charge such as a cast booster charge (10, 110, 210) includes an explosive charge (14, 114, 214) having a first explosive matrix material (114a, 214a) with discrete bodies (118, 218) of a second material embedded therein. In some embodiments, discrete bodies may comprise explosive material and the first explosive matrix material (114a, 214a) may be more sensitive to initiation than the explosive material of the discrete bodies (118, 218). In a separate aspect of the invention, the discrete bodies may have a minimum dimension of at least 1 millimeter or, optionally, 1.6 millimeter, regardless of the explosive properties of the material therein. In a particular embodiment, discrete bodies may be shaped as cylindrical pellets rounded at at least one end. The cast booster charge (10, 110, 210) may be produced by melting the first explosive, disposing discrete bodies therein and cooling the molten material to solid form.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: January 21, 2003
    Assignee: The Ensign-Bickford Company
    Inventors: Farrell G. Badger, Lyman G. Bahr
  • Patent number: 6502513
    Abstract: A gas generant material body in the form of a tablet having a triangular cross section and associated methods of gas generation are provided.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: January 7, 2003
    Assignee: Autoliv ASP, Inc.
    Inventors: Michael W. Barnes, Gary L. Smith
  • Publication number: 20030000412
    Abstract: A disk-shaped propellant module (6) for a propellant charge (2), which can be composed of several modules of this type. To ensure a uniform and symmetrical ignition of the propellant charge (2) for a cartridge with increased charge density (>1.2 g/cm3), the propellant module (6) is provided with at least three axially extending ignition channels (9), uniformly distributed over a partial circle, and at least three radial ignition channels (10) that extend from the inside or interior of the propellant module (6) to its outer edge surface (11). The center of the circle for the axial ignition channels (9) is positioned on the central axis (100) for the propellant module (6) and each of the radial ignition channels (10) intersects with at least one of the axial ignition channels (9).
    Type: Application
    Filed: June 27, 2002
    Publication date: January 2, 2003
    Inventors: Hans-Karl Haak, Alexei Voronov
  • Publication number: 20020152912
    Abstract: A pyrotechnic device and method for making the same is disclosed which includes a pyrotechnic composition comprising a fuel, an oxidizing agent, and at least one of a metal salt and metal powder; wherein the pyrotechnic composition further comprises a cylinder with an internal surface area positioned within an outer cylindrical surface area; and, wherein prime is proximately disposed at least at one end of the internal surface area of said cylinder.
    Type: Application
    Filed: April 23, 2001
    Publication date: October 24, 2002
    Inventors: Michael A. Hiskey, Darren L. Naud
  • Patent number: 6460461
    Abstract: The present invention relates to the field of hybrid gas generators intended to inflate a protective airbag. The generator (1) consists of two metal tubes (50, 51) welded together, the upstream tube (50) being of one piece with an internal partition (26) that has a central orifice (27) closed by a diaphragm (28). The generator thus has a reservoir chamber (29) containing a pressurized gas and a combustion and mixing chamber (46) containing a pyrotechnic device (4) and a support piece (30) carrying a piston-pillar (31) the stroke of which is limited. The hot gases cannot enter the reservoir chamber (29) which may thus contain a greater amount of gas.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: October 8, 2002
    Assignee: Livbag SNC
    Inventors: Christian Perotto, Christophe Haegeman, Franck Le Baudy
  • Publication number: 20020134269
    Abstract: The proposed propellant powder exhibits a temperature-independent burning behavior and high ballistic stability. The production process starts with a perforated bulk powder grain, which is processed inside a mixing apparatus with a solid material, a plug-stabilizing moderator or deterrent (if necessary also a radical initiator) and a low-viscous liquid. With a minimum amount of solid material, moderator or deterrent and liquid and because of the continuous mixing, the form function is influenced in such a way that the gas-formation rate is practically independent of the propellant powder temperature. As a result, the muzzle energy at the normal temperature and, above all, at a low deployment temperature can be increased markedly as compared to that of a standard propellant powder.
    Type: Application
    Filed: March 13, 2002
    Publication date: September 26, 2002
    Inventors: Markus Fahrni, Beat Vogelsanger, Alfred Steinmann, Bruno Ossola, Ulrike Jeck-Prosch, Alexander Huber, Kurt Ryf
  • Patent number: 6453816
    Abstract: A temperature fuse for gas-generating mixtures consists of substances or mixtures of substances that have lower detonation points or decomposition points than the gas-generating mixture. In particular, the temperature fuse contains substances or mixtures of substances that thermally decompose exothermically in a narrowly restricted temperature range. The evolution of heat that results ignites the gas-generating mixture.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: September 24, 2002
    Assignee: Dynamit Nobel GmbH Explosivstoff-und Systemtechnik
    Inventors: Klaus Redecker, Waldemar Weuter, Ulrich Bley, Dagmar Schmittner
  • Patent number: 6414040
    Abstract: A composition for generating smoke, consisting essentially of at least one chlorine compound having a chlorine content of at least 56% by weight of the chlorine compound, and a mixture of at least one metal oxide and at least one metal. The metal oxide is an alkaline-earth metal oxide and the metal is an alkaline-earth metal. The molar fraction of alkaline-earth metal, based on the total number of moles of alkaline-earth metal and alkaline-earth metal oxide, is between 0.33 and 0.67. Preferably, the chlorine compound is hexachloroethane. Also preferably, the molar fraction of the mixture of alkaline-earth metal and alkaline-earth metal oxide in the composition is between 0.37 and 0.91. The alkaline-earth metal comprises particles having an average size of 50-100 &mgr;m and particles having an average size of 150-300 &mgr;m.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: July 2, 2002
    Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Christoffel Adrianus Van Driel, Adriana Petronella Martina Leenders, Arnold Barend Leeuwenburgh, Elisabeth Schonewille
  • Patent number: 6408760
    Abstract: The method for manufacturing solid rocket motors of the present invention comprises placing a mandrel having at least one easily disintegrative solid slot former positioned thereon substantially centrally along the axis of a rocket case, casting uncured solid rocket propellant about the mandrel and the easily disintegrative solid slot former, curing the solid propellant, and removing the mandrel and the easily disintegrative solid slot former from the cured propellant.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: June 25, 2002
    Assignee: United Technologies Corporation
    Inventors: Donald Lee Knaresboro, Forrest Ray Goodson
  • Patent number: 6386110
    Abstract: A deforming charge assembly is provided which has an inner and an outer cylinder formed from carbon fiber. Each of the inner and outer cylinders have an inner circumference surface having an inner diameter and an outer circumference surface having an outer diameter. The inner diameter of the outer cylinder is greater than the outer diameter of the inner cylinder. Each of the inner and outer cylinders have a first layer of circumferentially wound carbon fiber, a second layer of unidirectional carbon fiber sheet and a plurality of layers of carbon fibers circumferentially wrapped around the second layer. A plurality of sympathetic detonation barrier members are provided and have an inner surface in contact with the outer circumference surface of the inner cylinder and an outer surface in contact with the inner circumference surface of the outer cylinder.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: May 14, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Chaarles W. Landman, William H. Grigsby, Jr., Robert J. Gripshover, John W. Hannick
  • Patent number: 6354218
    Abstract: A propellant system for launching a large-caliber projectile includes a propellant having at least three partial charges. The first partial charge is adapted to acceleration requirements of the projectile; the second partial charge has a higher combustion velocity than that of the first partial charge; and the third partial charge has a lower combustion velocity than that of the first partial charge. The propellant system further includes an electric energy supply and control device connected to the propellant for igniting the propellant. The electric energy supply and control device has a plasma generator for affecting a combustion behavior of the propellant such as to obtain for said first partial charge, after ignition of the propellant, a maximum gas pressure level of always the same magnitude independently from an initial propellant temperature, and to obtain, for the third partial charge, a conversion such as to prolong the maximum gas pressure level in a predeterminable manner.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: March 12, 2002
    Assignees: Rheinmetall W & M GmbH, TZN Forschungs-und Entwicklungszentrum Unterlüss GmbH, Nitrochemie Aschau GmbH
    Inventors: Thomas Weise, Hans Karl Haak, Paul Schaffers, Peter Lange
  • Patent number: 6352030
    Abstract: A gas generating eject motor includes a case containing an ignitable low temperature gas generant material that does not produce toxic gases upon the combustion thereof. The gas generant material is generally contained with a screen enclosure housed within the case. An igniter is disposed within the gas generant material for selectively igniting the gas generant to thereby generate combustion gases. A nozzle is disposed within an open aft end of the case for focusing and directing the combustion gases generated by the ignited gas generant material. The case is constructed and arranged to be separably attached to the aft end of a rocket to be launched from a launch platform, so that, upon ignition of the gas generant, the combustion gases focused by the nozzle will apply a thrust to the rocket and thereby propel, or eject, the rocket from the launch platform, at which time the combustible propellant of the rocket motor will ignite and the eject motor will be separated from the rocket.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: March 5, 2002
    Assignee: Cordant Technologies Inc.
    Inventors: Daniel W. Doll, Gary K. Lund, Craig D. Hughes, Marc A. Hall, David J. Macon
  • Patent number: 6345577
    Abstract: Propellant compositions are coated with an energetic deterrent coating which reduces the burning rate at the surface of the propellant grain and causes the propellant to burn progressively. The use of energetic materials, that are slightly soluble in the coating solvent, improve the burning properties of the propellant without decreasing the chemical energy.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: February 12, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Randall J. Cramer, Susan Peters, Ronald Simmons, Steve Mitchell
  • Patent number: 6334394
    Abstract: A propellant charge arrangement for barrel-weapons or ballistic drives comprises a conventional core charge having an ignition system and a consolidated propellant surrounding the core charge and having its own high electrical energy ignition system which can be controlled in a time-delayed manner after triggering the core charge ignition system. The structure and arrangement of the consolidated propellant and its ignition system are chosen such that, during combustion of the core charge, the consolidated propellant disintegrates into fragments of essentially uniform geometry in response to triggering of its associated ignition system, wherein the fragments are accelerated into the gas volume generated during combustion of the core charge.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: January 1, 2002
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung
    Inventors: Gerd Karl Werner Zimmermann, Ernst Gütlin, Hans Jürgen Maag
  • Patent number: 6322649
    Abstract: The invention relates to the field of protecting the occupants of a motor vehicle by an inflatable airbag. The invention relates to a process consisting in inflating an airbag (1) by a pyrotechnic generator (2) containing a double-composition charge (9) formed around a main charge having a linear burning rate V1 and at least part of the ignition faces of which are covered with a skin of moderate pyrotechnic composition having a linear burning rate V2 satisfying the relationship: 0.05 V1≦V2≦0.5 V1. The invention thus makes it possible to inflate the airbag gradually during the first milliseconds of deployment of the latter.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 27, 2001
    Assignee: Livbag SNC
    Inventors: Benoît Marsaud, Christian Perotto, Jean-Charles Delwarde, Daniel Duvacquier
  • Patent number: 6289814
    Abstract: An apparatus and method for inflating an inflatable device which involve a heat source composed of a load of fuel material and an initiator is actuatable to be in heat transmitting communication such as to initiate dissociation of a gas source material to form at least one gaseous dissociation product used to inflate the inflatable device.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: September 18, 2001
    Assignee: Autoliv ASP, Inc.
    Inventors: Karl K. Rink, David J. Green, Bradley D. Harris
  • Patent number: 6230626
    Abstract: A flashless rocket propellent has a continuous potassium sulfate rod extending though the length of the propellent component. The flashless rocket propellent is particularly useful in the MK 66 Rocket Motor.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: May 15, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Steven S. Kim
  • Patent number: 6176517
    Abstract: A gas generating apparatus for outputting a gas is provided. In one embodiment, the apparatus is an inflator having a propellant for supplying inflation gas(es) to an inflatable located in a vehicle. A confining member is located adjacent to the propellant. A number of spaced holes are provided in the confining member, either before or after activation of the propellant. Inflation gas is received through the spaced holes for subsequent passage to the inflatable. In that regard, the inflation gas first passes through a chamber defined in a timing member that has metering orifices. Such orifices regulate the flow of the inflation gas to the inflatable. The confining member is able to withstand significant pressures without rupturing. Each of the confining member and the timing member is preferably made of a non-metallic material. The propellant includes a fuel-rich material and an oxidizer material, preferably ammonium nitrate.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: January 23, 2001
    Assignee: Autoliv ASPInc.
    Inventors: Brian K. Hamilton, Paul Harrington, Charles B. Kafadar
  • Patent number: 6177028
    Abstract: A spontaneous firing explosive composition for use in a gas generator for an airbag containing a fuel, an oxidizer, a combustion modifier, and a binder.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: January 23, 2001
    Assignees: Nippon Kayaku Kabushiki-Kaisha, Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takeshi Kanda, Nobuaki Yokote, Takashi Saso, Koji Tanaka, Akihiko Kuroiwa, Yuji Ito, Ayumu Kimura
  • Patent number: 6129023
    Abstract: The invention relates to the field of protecting the occupants of a motor vehicle by an inflatable airbag.The invention relates to a process consisting in inflating an airbag (1) by a pyrotechnic generator (2) containing a double-composition charge (9) formed around a main charge having a linear burning rate V.sub.1 and at least part of the ignition faces of which are covered with a skin of moderate pyrotechnic composition having a linear burning rate V.sub.2 satisfying the relationship:0.05 V.sub.1 .ltoreq.V.sub.2 .ltoreq.0.5 V.sub.1.The invention thus makes it possible to inflate the airbag gradually during the first milliseconds of deployment of the latter.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: October 10, 2000
    Assignee: Livbag SNC
    Inventors: Benoit Marsaud, Christian Perotto, Jean-Charles Delwarde, Daniel Duvacquier
  • Patent number: 6117254
    Abstract: An apparatus and method for inflating a vehicular inflatable device are provided wherein inflation gas is produced via a dissociative material wherein an initiator includes an enhanced fuel pyrotechnic formulation which, in addition to initiating dissociation of at least a portion of a quantity of gas source material contained within the inflator, forming dissociation products used to inflate the device, also forms particles to interact with one or more of at least a portion of the remaining quantity of gas source material contained within the inflator and the dissociation products to form additional inflation products for inflating the inflatable device.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: September 12, 2000
    Assignee: Autoliv ASP, Inc.
    Inventors: Karl K. Rink, William B. Richardson, David J. Green
  • Patent number: 6101947
    Abstract: 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 or a high temperature environment.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 15, 2000
    Assignee: Talley Defense Systems, Inc.
    Inventors: Gregory D. Knowlton, Christopher P. Ludwig
  • Patent number: 6062142
    Abstract: An autoignition system for use in an inflator or method of inflating includes a separator which divides a composition capable of spontaneous combustion or autoignition so that it cannot combust until the separator is removed or altered in form. The separator is made of a material which melts at a select temperature so that autoignition will occur upon melting of the separator. The system can also use the separator or a burst disc to sensitize a desensitized spontaneous combustion mixture to achieve autoignition at a desired temperature.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: May 16, 2000
    Assignee: Atlantic Research Corporation
    Inventor: Robert S. Scheffee
  • Patent number: 6053110
    Abstract: A gas generant wafer design having a channel region integrally formed into one or both of its sides or faces. Characteristic of the wafer is that the geometric design of the wafer is improved by increasing its cross-section in the same manner that an "I-Beam" increases the structural characteristic of a linear structural member.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: April 25, 2000
    Assignee: Autoliv ASP, Inc.
    Inventors: Brent R. Marchant, Brett Hussey
  • Patent number: 6039820
    Abstract: 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 ligand containing hydrogen and nitrogen, sufficient oxidizing anion to balance the charge of the complex, and at least one cool burning organic nitrogen-containing compound. The complexes are formulated such that when the complex combusts, nitrogen gas and water vapor is produced. Specific examples of such complexes include metal nitrite ammine, metal nitrate ammine, and metal perchlorate ammine complexes, as well as hydrazine complexes. A binder and co-oxidizer can be combined with the metal complexes to improve crush strength of the gas generating compositions and to permit efficient combustion of the binder. Such gas generating compositions are adaptable for use in gas generating devices such as automobile air bags.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: March 21, 2000
    Assignee: Cordant Technologies Inc.
    Inventors: Jerald C. Hinshaw, Daniel W. Doll, Reed J. Blau, Gary K. Lund
  • Patent number: 5996501
    Abstract: A dual explosive charge is described that simultaneously enhances blast and fragmentation characteristics of the charge, including an inner driven charge of a non-ideal explosive surrounded by an outer charge sleeve of a more nearly ideal explosive, detonation of the outer charge resulting in an extremely high temperature, high pressure environment that accelerates reaction kinetics in the inner charge, resulting in enhanced blast and fragmentation performance of the explosive charge.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: December 7, 1999
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Arthur F. Spencer, John D. Corley
  • Patent number: 5997667
    Abstract: A fire starting flare suitable for hand-held launchers has a fuse and ignitor assembly within a flare core material such that as the flare is launched the fire ignites and as the flare lands the fuse reaches the ignitor assembly to set off the flare.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: December 7, 1999
    Assignee: Quoin, Inc.
    Inventor: Michael D. Jacobson
  • Patent number: 5992327
    Abstract: The invention relates to a sub-ammunition object for vapor generation for a spinstabilized carrier projectile with axial sub-ammunition discharge, consisting of a stackable, flat, disk-shaped, stamped part of identical caliber, which, at a height/width ratio of about 1:1.5 to 1:5, contains red phosphorus as the primary active substance and is designed to retain its structural and form stability during firing, discharge, and stacking as a result of fibers embedded in the active substance and/or a shell, with the combustion time being chemically and/or physically adjustable through the height, compression pressure and/or composition of the active substance. It is preferred that the active substance be located in a container with at least one blower aperture and one oxygen donor as the energy supply needed for combustion of the red phosphorus in the container.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: November 30, 1999
    Assignee: Buck Werke GmbH & Co.
    Inventors: Norbert Wardecki, Herwig Feldmeier