With Explosive Or Exothermic Agent Patents (Class 148/515)
  • Patent number: 9163757
    Abstract: The invention relates to a high-pressure pipe element having at least two metal tubes 1, 3 reinforced by hoops 2 and 4, the ends of the tubes being bare. The tubes are assembled end to end by a weld 5 of the bared ends. A sleeve 6 covers the weld 5 as some of the hooping 2 and 4 of each tube, forming an annular space between the bare ends of the tubes and the sleeve, said space being filled with a setting material 9. The invention also relates to manufacturing the high-pressure pipe element.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: October 20, 2015
    Assignee: IFP
    Inventors: Gérard Papon, Jean Guesnon
  • Patent number: 8713982
    Abstract: The invention relates to a device for explosive forming of workpieces, comprising an ignition chamber and an ignition mechanism, wherein an explosive agent can be ignited at an ignition location in the ignition chamber using the ignition mechanism, and an ignition chamber outlet is provided, to be improved such that the ignition mechanism has a longer service life. The aim is achieved by a device wherein an impact breaker is provided in the propagation path (37) of the detonation wave.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: May 6, 2014
    Assignee: Magna International Inc.
    Inventors: Andreas Stranz, Alexander Zak
  • Patent number: 7524355
    Abstract: A method is disclosed for producing an energetic metastable nano-composite material. Under pre-selected milling conditions a mixture of powdered components are reactively milled. These components will spontaneously react at a known duration of the pre-selected milling conditions. The milling is stopped at a time at which the components have been compositionally homogenized to produce nanocomposite powder, but prior to said known duration, and thereby before the spontaneous reaction occurs. The milled powder is recovered as a highly reactive nanostructured composite for subsequent use by controllably initiating destabilization thereof.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: April 28, 2009
    Assignee: New Jersey Institute of Technology
    Inventors: Edward Leonid Dreizin, Mirko Schoenitz
  • Patent number: 6676896
    Abstract: The invention relates to a method of a composite material from superposed layers of solid and frothable metallic materials. The structural component consists of at least one layer of a solid metallic material and at least one layer of frothable metallic material. The structural component may be structured as a composite sheet or as a hollow body. The fabrication method of the structural component insures a good bond between the solid metallic layer and the frothable layer and that the frothable layer is securely attached to the solid metallic layer.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: January 13, 2004
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angwandten Forschung e.V.
    Inventor: Joachim Baumeister
  • Publication number: 20030029522
    Abstract: A method of laser shock peening a metallic part by firing a laser on a coated laser shock peening surface of the part which has been covered with an explosive coating containing at least one explosive ingredient. Two or more explosive ingredients having different shock sensitivities may be used and the laser beam is fired with sufficient power to explode at least some amount of each of the explosive ingredients.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 13, 2003
    Inventor: Otis S. Moreman
  • Publication number: 20010030006
    Abstract: A system and method for heating an elongate metal item to cause thermal expansion thereof. The system includes a tubular container having a nozzle and a moveable piston, with gelled fuel disposed between the piston and the nozzle. An advancing mechanism moves the piston toward the nozzle to force the gelled fuel to flow out of the nozzle onto the elongate metal item. The method includes the steps of applying the gelled fuel to a surface of the item, and igniting the gelled fuel.
    Type: Application
    Filed: February 26, 2001
    Publication date: October 18, 2001
    Applicant: Alco-Brite, Inc.
    Inventors: Erwin C. Fischer, Lorin Dee Fisher, Leroy Fischer, Ron Darger, Lloyd L. Wall
  • Patent number: 6245165
    Abstract: The present invention concerns a hydrogen storage alloy powder composition for nickel metal hydride rechargeable batteries. The powder is distinguished by a fine dendritic stnucture and is prepared by gas atomising a metal melt and rapidly cooling the gas atomised powder, which is subsequently heat treated and pulverised.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Hoganas AB
    Inventors: Johan Arvidsson, Ralf Carlström, Hans Hallén, Sture Löfgren
  • Patent number: 6139658
    Abstract: The invention provides a method of making a titanium carbide metal matrix alloy, by firing a particulate reaction mixture comprising carbon, titanium and matrix material, under conditions such that the titanium and carbon react exothermically to form a dispersion of fine particles comprising titanium carbide (preferably less than 10 microns) in a predominantly metal matrix. The titanium and matrix are preferably added as a titanium alloy such as ferrotitanium, e.g. eutectic ferrotitanium. The reaction conditions are preferably selected so that during the reaction a molten zone moves through the body of the reaction mixture; the resulting hard particles are of globular form; and their average size is uniform throughout the resulting dispersion.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 31, 2000
    Assignee: London & Scandinavian Metallurgical Co., Ltd.
    Inventors: Peter Davies, James Leslie Frederick Kellie, Richard Nigel McKay, John Vivian Wood
  • Patent number: 6099664
    Abstract: The invention provides a method of making a titanium boride metal matrix alloy, by firing a particulate reaction mixture comprising titanium, matrix material and a source of boron (e.g. boron carbide), under conditions such that the titanium and boron react exothermically to form a dispersion of fine particles (preferably greater than 1 micron and less than 10 microns in size) comprising titanium boride (plus titanium carbide where the source of boron is boron carbide) in a predominantly metal matrix. The titanium and matrix are preferably added as a titanium alloy such as ferrotitanium (e.g. eutectic ferrotitanium) or titanium-aluminium. The reaction conditions are preferably selected so that during the reaction a molten zone moves through the body of the reaction mixture, and the average size of the resulting hard particles is uniform throughout the resulting dispersion.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: August 8, 2000
    Assignee: London & Scandinavian Metallurgical Co., Ltd.
    Inventors: Peter Davies, James Leslie Frederick Kellie, Richard Nigel Mc Kay, John Vivian Wood
  • Patent number: 5954895
    Abstract: A method of making a deposit on a component made of a nickel or cobalt based superalloy is described wherein a deposit material consisting of reactive powders corresponding to an intermetallic material or of a superalloy powder is deposited on the component before placing it in a chamber and subjecting it to a neutral gas at a hydrostatic pressure of up to 1.5 GPa, the chamber being provided with heater means for producing a controlled temperature of up to 1200.degree. C. at a rate of increase of from 5.degree. C. to 120.degree. C. per minute and a thermal gradient of 200.degree. C. between the ends of the component, and the temperature and pressure conditions in the chamber are selected such that the deposit material undergoes a synthesis reaction by self-propagated combustion under high pressure so as to obtain densification of the deposit and a metallurgical bonding between the deposit and the component.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: September 21, 1999
    Assignee: Societe Sochata
    Inventors: Marie-Caroline Dumez, Jean-Pierre Huchin, Rose Marie Marin-Ayral, Didier Perraud, Jean-Claude Tedenac
  • Patent number: 5565387
    Abstract: Electrical heating elements and related articles having oxidation resistance at high temperatures, produced by a method involving micropyretic synthesis. A composition subjected to micropyretic synthesis comprises a filler material, a reactive system capable of undergoing micropyretic synthesis, and (optionally) a plasticizer or extrusion agent. The method of preparation of articles includes slurry techniques, plastic extrusion, slip casting, or coating.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: October 15, 1996
    Inventors: Jainagesh A. Sekhar, Naiping Zhu
  • Patent number: 5306361
    Abstract: In the heat treatment in the field of a thermite weld between rail ends, the rail ends and the weld are enclosed within a containment filled with an aluminothermic material mixture. The mixture is ignited and the rail ends and the thermite weld are heat-treated for a given period. After the given period, the aluminothermic reaction products and the containment are removed, and an air quench unit is placed about the weld and rail ends and compressed air is directed at the weld and rail ends for a given time period. After the removal of the air quench unit, the weld is allowed to cool to ambient temperature.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: April 26, 1994
    Inventors: Gordon O. Besch, Robert H. Kachik, Mark A. Swartz, Frank K. Kuster, Hans J. Guntermann
  • Patent number: 5188678
    Abstract: The present invention relates to a method of making metal ceramic composites and the metal ceramic compositions and articles made therefrom, especially net-shaped articles having a wide variety of applications.The present invention involves preparing a combustion synthesis mixture comprising at least one substance containing a combustible mixture of powders and at least one low-melting metal, forming this mixture into a desired final shape in a die, and carrying out a combustion synthesis therewith. Ceramic or metallic reinforcements may be incorporated in the combustion synthesis.The present invention allows the control of porosity in the resultant composite compositions and can result in composites having high toughness characteristics.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: February 23, 1993
    Assignee: University of Cincinnati
    Inventors: Jainagesh A. Sekhar, Sarit B. Bhaduri, Hung P. Li, Necip S. Canarslan