Patents Examined by Anthony R. Chi
  • Ammonim nitrate fuel oil blasting composition having improved water resistance
    Patent number: 5480500
    Abstract: A blasting explosive comprises an organic carbonaceous fuel, an inorganic oxidizing salt, a gelling agent and particulate filler material, wherein prior to exposing the particulate filler material and the inorganic oxidizing salt to the organic carbonaceous fuel and the gelling agent, from about 15 to about 60 wt % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 10 sieve, from about 15 to about 60 wt % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 14 sieve and from about 20 to about 60 wt. % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 20 sieve.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: January 2, 1996
    Assignee: ETI Explosives
    Inventors: Andrew Richard, Grant Simpson, Earl Reckzin
  • Method for producing an elongated sintered article
    Patent number: 5480601
    Abstract: Method for producing an elongated sintered article, characterized by the steps including filling powder material in a pipe, carrying out plastic deformation of the pipe filled with the powder material, and heating the pipe filled with the powder material to burn and/or sinter the powder material.The method of the present invention is advantageously applicable to production of wire or rod of ceramics, particularly so called new ceramics or fine ceramics, sintered alloys or their combination, which are difficult of shaping or moulding by conventional process such as wire-drawing, rolling or extrusion of powder material and are difficult of machining or processing after the powder material is sintered.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: January 2, 1996
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Susumu Yamamoto, Teruyuki Murai, Nozomu Kawabe, Masaaki Tobioka
  • Methods for manufacturing tubes filled with powdery and granular substances
    Patent number: 5474736
    Abstract: A method for manufacturing tubes filled with powdery and/or granular substances comprising the steps of forming a metal strip into a tube, feeding powdery and/or granular substances into the tube being formed as a core, joining together the edges of the tube filled with the core of the powdery and/or granular substances by high-frequency welding, and reducing the diameter of the welded tube filled with the core of the powdery and/or granular substances. At least the top layer of the core in the tube is composed of powdery and/or granular substances having low enough magnetic susceptibility to remain unattracted to the magnetized tube edges that is determined based on the welding heat input.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: December 12, 1995
    Assignee: Nippon Steel Welding Products & Engineering Co., Ltd.
    Inventors: Nobuo Araki, Takeji Kagami, Toru Ono, Iwao Yamada, Seiji Hashimoto
  • Desensitized solid rocket propellant formulation
    Patent number: 5474625
    Abstract: A composite propellant composition and process are disclosed for reducing e reactive violence during cook-off and to improve the performance of a potassium perchlorate/ammonium perchlorate propellant composition wherein 0.25-2.0% by weight, of iron oxide replaces 0.25-2.0% by weight, of potassium perchlorate in the composition.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: December 12, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Anh N. Duong, George B. Wilmot
  • Explosive composition and method for producing the same
    Patent number: 5472529
    Abstract: An explosive composition in which the explosive reactive component is adsorbed and held on the surfaces of and between the organic hollow microspheres, and a method of producing the same.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takenori Arita, Shunichi Sato
  • Gas generant compositions containing stabilizer
    Patent number: 5472535
    Abstract: To a gas generant composition comprising a fuel component which includes a triazole compound and/or tetrazole compound with an acidic hydrogen and an oxidizer component which includes a transition metal oxide, is added a chelating agent, such as ethylenediaminetetraacetic acid (EDTA) to provide long-term stability to the gas generant composition.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: December 5, 1995
    Assignee: Morton International, Inc.
    Inventors: Ivan V. Mendenhall, Robert D. Taylor
  • Insensitive explosive composition
    Patent number: 5472531
    Abstract: The explosive blasting composition in this invention contains 1 to 40 pert Aluminum powder, 40 to 80 percent Cyclotetramethylene Tetranitramine, 4 to 15 percent Cellulose Acetate Butyrate, 5 to 20 percent of 1:1 mixture of bis 2,2-dinitropropyl acetate and bis 2,2-dinitropropyl formal, and, and 0.25 to 0.75 percent Tri (dioctyl Phosphato) Titanate.The method of making the above composition consists of combining Cyclotetramethylene Tetranitramine, Cellulose Acetate Buterate, 1:1 bis 2,2-dinitropropyl acetate and bis 2,2-dinitropropropyl formal, and tri (dioctyl phosphato) titanate, mixed at an elevated temperature for a period of time. Prior to blowdown, the Aluminum powder is added. to the mix. Mixing continues and blowdown is initiated to remove excess solvents for the purpose of extrusion.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: December 5, 1995
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph Turci, Mark Mezger, Bernard Strauss, Thelma Manning
  • Method of manufacturing free-flowing ammonium nitrate particles applying an anticaking agent
    Patent number: 5472530
    Abstract: The present invention relates to a method of manufacturing free-flowing ammonium nitrate particles, applying an inorganic coating. The invention also comprises an anti-caking coating.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: December 5, 1995
    Assignee: Norsk Hydro a.s
    Inventors: Torstein Obrestad, Leif G. Helleb.0., Jan B. Isaksen, Bj.0.rn Juliussen
  • Spectrally balanced infrared flare pyrotechnic composition
    Patent number: 5472533
    Abstract: 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.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: December 5, 1995
    Assignee: Alliant Techsystems Inc.
    Inventors: David W. Herbage, Stan L. Salvesen
  • Process for the preparation of finely divided metal and ceramic powders
    Patent number: 5472477
    Abstract: The present invention relates to a process for the preparation of finely divided metal and/or ceramic powders by reacting appropriate metal compounds and appropriate reagents in the gas phase (CVR) chemical vapor reaction, wherein the metal compound(s) and the further reagents are brought to reaction in the gaseous state in a reactor and are subsequently homogeneously condensed directly out of the gas phase, with exclusion of any wall reaction, and are subsequently separated from the reaction medium.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: December 5, 1995
    Assignee: H.C. Starck GmbH & Co. KG
    Inventor: Theo Konig
  • Method of varying rate of detonation in an explosive composition
    Patent number: 5470407
    Abstract: Provided herewith is a method for preparing an explosive composition with an adjusted rate of detonation which matches the rock stratum in which blasting is to occur. The composition is comprised of a mixture of glass microballoons and plastic spheres, which mixture has been found to provide one with adjustable rates of detonation with essentially no significant difference in the carbon, hydrogen, oxygen, nitrogen and water contents or ratios and at the same time with the same overall energy.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: November 28, 1995
    Assignee: Nelson Brothers, Inc.
    Inventors: George L. Griffith, Ricky T. Vance
  • Reversible transformation of hydrocarbons
    Patent number: 5468261
    Abstract: This invention relates to the use, transport, storage, recovery and re-use of chemical compounds. In particular, the invention is directed to a method for reversibly transforming organic compounds into a phase more suitable for subsequent handling but from which the original organic compounds can be readily recovered. The invention is particularly suited for, but not limited to, the recovery and re-use of liquid hydrocarbons, either naturally occurring or synthetic, and/or their derivatives, and it is expected to be especially useful in the recovery of hydrocarbons from an oil spill.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: November 21, 1995
    Assignee: Skylab International Limited
    Inventor: Guy I. Z. Kalocsai
  • Plastisol explosive
    Patent number: 5468313
    Abstract: Castable high explosive compositions having a binder system containing plastisol grade nitrocellulose (PNC) and an energetic plasticizer are disclosed. The explosive composition also includes a solid high explosive ingredient, such as an explosive nitramine. Reactive metals, such as aluminum, magnesium or titanium, and oxidizers, such as ammonium perchlorate, ammonium nitrate, or ammonium dinitramide, are optionally included in the explosive compositions of the present invention. The disclosed explosive compositions have a typical detonation velocities above about 8000 m/s.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: November 21, 1995
    Assignee: Thiokol Corporation
    Inventors: Ingvar A. Wallace, II, Paul C. Braithwaite, Jamie B. Neidert
  • Smoke charge and method for its preparation
    Patent number: 5466314
    Abstract: A smoke-generating combustion charge is disclosed having a nitrate-containing oxidizing agent combined with wetted carbon granules to cause polar binding of the oxidizing agent. Such a charge produces a non-toxic smoke, and is environment-compatible, even when the charge fails to ignite, or is combusted incompletely. The method of preparation for the smoke charge comprises the separate treatment of the oxidizing agent and the reducing agent, followed by common mixing and press-forming to produce pellets.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: November 14, 1995
    Assignee: Schweizerische Eidgenossenschaft Vertreten Durch Die Eidg. Munitionsfabrik Thun der Grupper fur Rustungsdienste
    Inventors: Walter Rauber, Markus Tobler
  • Non-toxic primer for center-fire cartridges
    Patent number: 5466315
    Abstract: A non-toxic primer composition for center-fire cartridges which provides improved ballistic data and is void of metallic oxidizing compounds. It is comprised of a mixture of about 10-30% by weight of nitrocellulose and/or a double based propellant such as Hercules Fines, approximately 30-75% by weight of two percussion-sensitive compounds such as DDNP and tetracene, and approximately 10-30% by weight of calcium silicide. The mixture provides improved propellant ignition and non-toxic ignition products, and minimizes misfires in that it contains no hygroscopic compounds.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: November 14, 1995
    Assignee: Federal-Hoffman, Inc.
    Inventors: Jack A. Erickson, Robert L. Kramer, John M. Hallis
  • Gas-producing material
    Patent number: 5466313
    Abstract: A gas-producing material for a gas generator, particularly for a belt tightener or for an inflatable impact cushion (airbag) to protect motor vehicle occupants, containing a liquefied gas mixture in which the liquefied gas components consist of a mixture of one or more ethers, olefins, ammonia or hydrogen and nitrous oxide (N.sub.2 O).
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: November 14, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Rainer Hagel, Klaus Redecker
  • Viscous coupling plate hardening and flattening method
    Patent number: H1512
    Abstract: A method of hardening and flattening a viscous coupling plate generally combining a heat treatment process followed by roller leveling is disclosed. The heat treatment process produces an epsilon iron nitride surface layer of the desired hardness on the plate. Subsequent to the heat treatment, the plates are passed through a series of leveling rolls to produce a sufficiently flat plate. The flat rolling process can incorporate a single pass or multiple passes through the leveling rolls. The method of the present invention eliminates any distortion in the plates and brings them within any required flatness specifications, as well as producing viscous coupling plates that exhibit improved resistance to permanent deformation under operating conditions.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: January 2, 1996
    Assignee: New Venture Gear, Inc.
    Inventors: Thomas W. Cowan, Sankar K. Mohan, Carl F. Stephens
  • Oleoyl sarcosinate with polyhydroxy fatty acid amides in cleaning products
    Patent number: H1513
    Abstract: Detergent compositions comprise oleoyl sarcosinate and polyhydroxy fatty acid amide surfactants which, together, provide compositions with improved cleaning performance and good solubility. Thus, oleoyl sarcosinate is combined with C.sub.10 -C.sub.18 N-methyl glucamide and builders, enzymes and other detersive ingredients to provide a laundry detergent. Use of this mixture of surfactants in dishwashing detergents is also described.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: January 2, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Bruce P. Murch, Rajan K. Panandiker, James M. Vander Meer, Jing-Feng You, Jean-Pol Boutique
  • Detergent compositions with oleoyl sarcosinate and polymeric dispersing agent
    Patent number: H1514
    Abstract: The present invention provides a deterent composition comprising:(a) at least 0.1% of an oleoyl sarconsinate of the formula: ##STR1## wherein M is hydrogen or a cationic moiety; and (b) from about 0.05% to about 15% of a polymeric dispersing agent selected from the group selected from the group consisting of polycarboxylates, polyethylene glycol polymers, polyaspartates and mixtures thereof.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: January 2, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth W. Willman, James M. Vander Meer
  • Silver halide photographic material
    Patent number: H1516
    Abstract: A silver halide photographic material comprising a support having provided thereon one or more hydrophilic colloid layers, at least one layer of which is a silver halide emulsion layer comprising a silver halide emulsion containing silver halide grains, wherein the silver halide grains contained in the at least one silver halide emulsion layer have a silver iodide content of not more than 0.5 mol %, the melting time of the silver halide photographic material is at least 30 minutes, and the total thickness of constituent hydrophilic colloid layers per each side of the support having thereon the at least one silver halide emulsion layer is less than 3.8 .mu.m.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: January 2, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tatsuya Ishizaka