Patents Examined by Aileen Felton
  • Patent number: 6928764
    Abstract: The present invention provides a grip extender for a handgun. The grip extender provides a relatively continuous surface between the handgun and locked magazine to afford the handgun user with a comfortable grip. The grip extender can be adapted to fit a variety of handguns and magazines.
    Type: Grant
    Filed: March 8, 2003
    Date of Patent: August 16, 2005
    Assignee: Freed Designs Inc.
    Inventor: Robert Freed
  • Patent number: 6929707
    Abstract: A stabilized water-in-oil energetic emulsion composition comprising a) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel; c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion; and d) an emulsion stabilizer comprising a hydrocarbon polymer, said hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000, provided that said emulsion composition is essentially free of any polyvalent inorganic agent that is capable of cross-linking with the emulsifying agent or the emulsion stabilizer.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 16, 2005
    Assignee: The Lubrizol Corporation
    Inventors: John J. Mullay, Robert A. Pollack
  • Patent number: 6918976
    Abstract: A gas generating composition which contains a nitrogenous organic compound as a fuel component and generates, at a high gasification rate, a clean gas harmless to the human body. The composition of the present invention comprises a nitrogenous organic compound as a fuel component and ammonium perchlorate and the nitrate of an alkaline metal or alkaline earth metal as oxidizing agents, wherein where a quantity of nitrate required solely for forming an oxide of alkaline metal or alkaline earth metal that can stoichiometrically neutralize hydrogen chloride generated from ammonium perchlorate is taken as 1, a quantity of nitrate of said alkaline metal or alkaline earth metal exceeds 0.9.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 19, 2005
    Assignee: Nippon Kayaku Kabushiki-Kaisha
    Inventors: Eishi Sato, Dairi Kubo, Kenjiro Ikeda
  • Patent number: 6916390
    Abstract: In the military field of explosive munitions, a semi-continuous process produces a composite explosive charge composing a charged solid polyurethane matrix, the charge of which is pulverulent and comprise at least one nitro-organic explosive, by introduction into a mould of a pastry explosive composition and then thermal crosslinking of this composition. The composition is obtained by mixing constituents essentially comprising a polyol prepolymer, a plasticizer, a polyisocyanate monomer and a pulverulent solid charge comprising at least one nitro-organic explosive. This simple and economic process makes it possible to dispense, without disadvantage, with the pot life/curing time of the composition compromise.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: July 12, 2005
    Assignee: Eurenco France
    Inventors: Jean-Paul Augier, Bernard Mahe, Alain Bonnel
  • Patent number: 6916389
    Abstract: A process for producing a mixture of particulates using compressed gas and sonication. The process is particularly useful to mix reactive particulates, such as thermites.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: July 12, 2005
    Assignee: Nanotechnologies, Inc.
    Inventors: David Richard Pesiri, Robert C. Dye
  • Patent number: 6916388
    Abstract: The present invention is directed to a solid propellant for rocket motors, gas generators and comparable devices, comprising a cured composition of hydrazinium nitroformate and an unsaturated hydroxyl terminated hydrocarbon compound.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: July 12, 2005
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Jeroen Louwers, Antonius Eduard Dominicus Maria Van Der Heijden, Petrus Johannes Maria Elands
  • Patent number: 6913661
    Abstract: The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the age-stabilizing agent is a molecular sieve having a pore size of 13 angstroms or less.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: July 5, 2005
    Assignee: Universal Propulsion Company, Inc.
    Inventors: Wayne C. Fleming, Hugh J. McSpadden, Donald E. Olander
  • Patent number: 6913660
    Abstract: The invention relates to explosive compositions comprising, in a water-in-oil emulsion as emulsifier, a Mannich adduct composed of a) a hydrocarbyl-substituted, hydroxyaromatic compound of the formula I (R1)nAr(OH)x ??(I) in which R1 is a hydrocarbyl group selected from a straight-chain or branched C6-C400-alkyl, C6-C400-alkenyl, C6-C400-alkenyl-aryl or C6-C400-alkyl-aryl radical; Ar is a mononuclear or polynuclear, optionally substituted aromatic ring; n is an integral value of 1, 2 or 3; and x is an integral value of 1 and 5; b) formaldehyde, an oligomer or polymer thereof; and c) a nitrogen compound selected from an amine having at least one primary or secondary amino function, and ammonia.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: July 5, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Arend Jouke Kingma, Arno Lange, Hans Peter Rath
  • Patent number: 6910420
    Abstract: An apparatus and method of using electrically initiated primer systems that rely on vaporizing a thin metallic film which is either coated on a non-conductive insulator component or is a malleable thin film or strip secured to the inner surface of a primer cup assembly to ignite an environmentally safe MIC composition.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: June 28, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Don Thompson, George N. Hennings
  • Patent number: 6905562
    Abstract: A low density slurry bridge mix for use in an inflatable restraint system is provided. The low density slurry bridge mix includes zirconium metal, a thermal conductivity enhancer such as aluminum metal, potassium perchlorate oxidant, and a binder material and has a dry density of about 45 to about 65 percent of theoretical density. The low density slurry bridge mix may be used in an initiator including an unground header attached to a raised bridgewire wherein the low density slurry bridge mix surrounds and adheres to the bridgewire.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: June 14, 2005
    Assignee: Autoliv ASP, Inc.
    Inventor: Brian K. Hamilton
  • Patent number: 6905561
    Abstract: A solid rocket propellant includes a hydroxy-terminated caprolactone ether binder and an oxidizer. The propellant may be disposed of by contacting it with an aqueous solution of 12 N NaOH or 6 N HCl at a temperature of about 140° F. for about 24 hours to decompose the binder. Solids remaining in the solution after the binder decomposes are removed.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: June 14, 2005
    Assignee: United Technologies Corporation
    Inventors: Marvin Luther Jones, Donald Dongjaw Tzeng
  • Patent number: 6896751
    Abstract: A propellant composition including a fuel, an oxidizer, and a latex binder and method of making, wherein the method of making eliminates the need for the large amounts of volatile, flammable solvents that are typically associated with the traditional process.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: May 24, 2005
    Assignee: Universal Propulsion Company, Inc.
    Inventors: Philip L. Posson, Mark Clark, Jim Cornwell
  • Patent number: 6893518
    Abstract: Sol-gel chemistry is used for the preparation of energetic materials (explosives, propellants and pyrotechnics) with improved homogeneity, and/or which can be cast to near-net shape, and/or made into precision molding powders. The sol-gel method is a synthetic chemical process where reactive monomers are mixed into a solution, polymerization occurs leading to a highly cross-linked three dimensional solid network resulting in a gel. The energetic materials can be incorporated during the formation of the solution or during the gel stage of the process. The composition, pore, and primary particle sizes, gel time, surface areas, and density may be tailored and controlled by the solution chemistry. The gel is then dried using supercritical extraction to produce a highly porous low density aerogel or by controlled slow evaporation to produce a xerogel. Applying stress during the extraction phase can result in high density materials.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: May 17, 2005
    Assignee: The Regents of the University of California
    Inventors: Randall L. Simpson, Ronald S. Lee, Thomas M. Tillotson, Lawrence W. Hrubesh, Rosalind W. Swansiger, Glenn A. Fox
  • Patent number: 6893517
    Abstract: A nitrocellulose-free, gas-generating composition for use in vehicle occupant restraint systems, in particular in a belt tensioner gas generator, substantially consists of at least one nitrogen-containing organic fuel in a proportion of 55 to 70% by weight, an inorganic oxidator in a proportion of 30 to 45% by weight, at least one combustion moderator in a proportion of up to 10% by weight and up to 5% by weight conventional adjuvants and additives, each in relation to the overall weight of the composition. The composition has a pressure exponent of less than 0.35 and a combustion rate at 200 bar of at least 40 mm/s.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: May 17, 2005
    Assignee: TRW Airbag Systems GmbH & Co. KG
    Inventors: Siegfried Zeuner, Roland Schropp, Achim Hofmann, Karl-Heinz Rödig
  • Patent number: 6887325
    Abstract: A non azide gas generant composition of nitroguanidine and an oxidizer such as phase stabilized ammonium nitrate is provided. A gas generant having nitroguanidine and phase stabilized ammonium nitrate has many desirable characteristics such as little production of ash and the production of essentially toxic free exhaust gas. When nitroguanidine is compressed into a pellet it has needle shaped crystals that bend or distort. When the gas generant pellets are subjected to thermal cycling some nitroguanidine crystals will return to their native conformation resulting in pellet growth. To eliminate this pellet growth, nitroguanidine is passed through a vibrating ball mill. The media in the vibrating ball mill pulverizes the nitroguanidine into an amorphous crumb.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: May 3, 2005
    Assignee: Key Safety Systems, Inc.
    Inventors: J B Canterberry, Mark A. Schmidt, Edward O. Hosey, Robert K. Walsh, John H. Adams
  • Patent number: 6887326
    Abstract: High nitrogen nonazide gas compositions, useful in inflating passenger restraint gas inflator bags, contain a high energy substituted tetrazole or bitetrazole that forms a naturally occurring hydrate and phase stabilized ammonium nitrate (PSAN) as a primary oxidizer. The combination results in gas generants that are relatively more stable and less explosive, have improved ignitability and burn rates, and generate more gas and less solids at lower operating pressures than known gas generant compositions.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: May 3, 2005
    Assignee: Automotive Systems Laboratory, Inc.
    Inventors: Graylon K. Williams, Sean P. Burns, Jeffrey W. Halpin, Paresh S. Khandhadia
  • Patent number: 6887324
    Abstract: A composition C4 substitute is provided, the substitute including 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,903,11]-dodecane (CL-20), optionally one or more nitramines other than CL-20, and silicone fluid. Also provided is an additive composition including CL-20 and bis(dinitropropyl)acetal and bis(dinitropropyl)formal (BDNPA/F). The additive composition is preferably combined with composition C-4.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: May 3, 2005
    Assignee: Alliant Techsystems Inc.
    Inventor: Kenneth E. Lee
  • Patent number: 6884307
    Abstract: Insensitive explosive molding powders are provided that include an explosive component, a binder and a plasticizer. The insensitive molding powders include explosive crystals that are bound by a binder system. Moreover, the insensitive high explosive molding powder of the present invention has a bi-/tri-/tetramodal grain composition comprising coarse grain (280-360 ?m with an upper limit of 500-700 ?m) and fine grain (e.g., 35-45 ?m) explosive crystals that a bonded by a binder system comprising a plasticizer and a binder. The molding powder of the present invention is coated in waterless solvent process having a solvent content of less than 0.01 wt. % and is immediately ready for pellet pressing.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 26, 2005
    Assignee: Diehl Munitionssysteme GmbH & Co. KG
    Inventors: Heinz Hofmann, Karl Rudolf
  • Patent number: 6880326
    Abstract: This invention comprises a new process for developing high regression rate propellants for application to hybrid rockets and solid fuel ramjets. The process involves the use of a criterion to identify propellants which form an unstable liquid layer on the melting surface of the propellant. Entrainment of droplets from the unstable liquid-gas interface can substantially increase propellant mass transfer leading to much higher surface regression rates over those that can be achieved with conventional hybrid propellants. The main reason is that entrainment is not limited by heat transfer to the propellant from the combustion zone. The process has been used to identify a new class of non-cryogenic hybrid fuels whose regression rate characteristics can be tailored for a given mission. The fuel can be used as the basis for a simpler hybrid rocket design with reduced cost, reduced complexity and increased performance.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: April 19, 2005
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: M. Arif Karabeyoglu, David Altman, Brian J. Cantwell
  • Patent number: 6881284
    Abstract: A cartridge primer which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML's would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: April 19, 2005
    Assignee: The Regents of the University of California
    Inventors: Daniel M. Makowiecki, Robert S. Rosen