Patents by Inventor Laurent Cottignies

Laurent Cottignies has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7939182
    Abstract: An aluminum-based welding filler wire is made with an aluminum alloy that contains between 0.1 and 6 wt. % titanium, including one portion in the form of TiB2 particles, TiC particles, or a combination thereof, and another portion in the form of free titanium. The filler wire can be used in welding aluminum-based materials.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: May 10, 2011
    Assignee: Aluminium Pechiney
    Inventors: Laurent Cottignies, Claudine Strippoli Gerin, Philippe Jarry, Christine Henon, Christophe Sigli
  • Publication number: 20080193792
    Abstract: An aluminum-based welding filler wire is made with an aluminum alloy that contains between 0.1 and 6 wt. % titanium, including one portion in the form of TiB2 particles, TiC particles, or a combination thereof, and another portion in the form of free titanium. The filler wire can be used in welding aluminum-based materials.
    Type: Application
    Filed: August 31, 2005
    Publication date: August 14, 2008
    Inventors: Laurent Cottignies, Claudine Strippoli Gerin, Jarry Philippe, Christine Henon, Christophe Sigli
  • Patent number: 6969432
    Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: November 29, 2005
    Assignee: Pechiney Rhenalu
    Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
  • Publication number: 20050183795
    Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.
    Type: Application
    Filed: June 1, 2004
    Publication date: August 25, 2005
    Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
  • Publication number: 20030031580
    Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.
    Type: Application
    Filed: July 5, 2002
    Publication date: February 13, 2003
    Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
  • Patent number: 6444059
    Abstract: Rolled or extruded products for welded constructions are made of an aluminum-magnesium-manganese type aluminum alloy, consisting essentially of, by weight: 3.0<Mg<5.0 0.5<Mn<1.0 Fe<0.25 Si<0.25 Zn<0.40 Cr<0.25 Cu<0.20 Ti<0.20 Zr<0.20 The product has a volumetric fraction of Mn containing dispersoids grater than 1.2%.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: September 3, 2002
    Assignee: Pechiney Rhenalu
    Inventors: Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
  • Publication number: 20010050118
    Abstract: The invention relates to rolled or extruded products for welded constructions made of AlMgMn type aluminium alloy.
    Type: Application
    Filed: July 25, 1997
    Publication date: December 13, 2001
    Inventors: GUY-MICHEL RAYNAUD, JEAN-LUC HOFFMANN, LAURENT COTTIGNIES, GEORGES PILLET