Patents by Inventor Jean-Michel Hauser
Jean-Michel Hauser 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).
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Publication number: 20190226068Abstract: The invention relates to a duplex stainless steel composition, the composition of which consists of, in % by weight: C?0.05% 21%?Cr?25% 1%?Ni?2.95% 0.16%?N?0.28% Mn?2.0% Mo+W/2?0.50% Mo?0.45% W?0.15% Si?1.4% Al?0.05% 0.11%?Cu?0.50% S?0.010% P?0.040% Co?0.5% REM?0.1% V?0.5% Ti?0.1% Nb?0.3% Mg?0.1% the balance being iron and impurities resulting from the smelting, and the microstructure consisting of austenite and 35 to 65% ferrite by volume, the composition furthermore satisfying the following relationships: 40?IF?70 where IF=6×(% Cr+1.32×% Mo+1.27×% Si)?10×(% Ni+24×% C+16.15×% N+0.5×% Cu+0.4×% Mn)?6.17 and ILCR?30.5 where ILCR=% Cr+3.3×% Mo+16×% N+2.6×% Ni?0.7×% Mn, and also to a process for manufacturing plate, strip, coil, bar, rod, wire, sections, forgings and castings made of this steel.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: Bernard BONNEFOIS, Jérôme PEULTIER, Mickael SERRIERE, Jean-Michel HAUSER, Eric CHAUVEAU
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Publication number: 20150167135Abstract: The invention relates to a duplex stainless steel composition, the composition of which consists of, in % by weight: C?0.05% 21%?Cr?25% 1%?Ni?2.95% 0.16%?N?0.28% Mn?2.0% Mo+W/2?0.50% Mo?0.45% W?0.15% Si?1.4% Al?0.05% 0.11%?Cu?0.50% S?0.010% P?0.040% Co?0.5% REM?0.1% V?0.5% Ti?0.1% Nb?0.3% Mg?0.1% the balance being iron and impurities resulting from the smelting, and the microstructure consisting of austenite and 35 to 65% ferrite by volume, the composition furthermore satisfying the following relationships: 40?IF?70 where IF=6×(% Cr+1.32×% Mo+1.27×% Si)?10×(% Ni+24×% C+16.15×% N+0.5×% Cu+0.4×% Mn)?6.17 and ILCR?30.5 where ILCR=% Cr+3.3×% Mo+16×% N+2.6×% Ni?0.7×% Mn, and also to a process for manufacturing plate, strip, coil, bar, rod, wire, sections, forgings and castings made of this steel.Type: ApplicationFiled: February 13, 2015Publication date: June 18, 2015Inventors: Bernard BONNEFOIS, Jérôme PEULTIER, Mickael SERRIERE, Jean-Michel HAUSER, Eric CHAUVEAU
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Publication number: 20100000636Abstract: The invention relates to a duplex stainless steel composition, the composition of which consists of, in % by weight: C?0.05% 21%?Cr?25% 1%?Ni?2.95% 0.16%?N?0.28% Mn?2.0% Mo+W/2?0.50% Mo?0.45% W?0.15% Si?1.4% Al?0.05% 0.11%?Cu?0.50% S?0.010% P?0.040% Co?0.5% REM?0.1% V?0.5% Ti?0.1% Nb? 0.3% Mg?0.1% the balance being iron and impurities resulting from the smelting, and the microstructure consisting of austenite and 35 to 65% ferrite by volume, the composition furthermore satisfying the following relationships: 40?IF?70 where IF=6×(% Cr+1.32×% Mo+1.27×% Si)?10×(% Ni+24×% C+16.15×% N+0.5×% Cu+0.4×% Mn)?6.17 and ILCR?30.5 where ILCR=% Cr+3.3×% Mo+16×% N+2.6×% Ni?0.7×% Mn, and also to a process for manufacturing plate, strip, coil, bar, rod, wire, sections, forgings and castings made of this steel.Type: ApplicationFiled: June 15, 2007Publication date: January 7, 2010Applicants: INDUSTEEL CREUSOT, UGITECHInventors: Bernard Bonnefois, Jerome Peultier, Mickael Serriere, Jean-Michel Hauser, Eric Chauveau
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Patent number: 6896747Abstract: Austenitic alloy for high-temperature strength with improved pourability and manufacturing, of which the composition comprises, in weight-%: 0.010%<carbon<0.04% 0%<nitrogen<0.01% silicon<2% 16%<nickel<19.9% manganese<8% 18.1%<chromium<21% 1.8%<titanium<3% molybdenum<3% copper<3% aluminum<1.5% boron<0.01% vanadium<2% sulfur<0.2% phosphorous<0.04% and possibly up to 0.5% of at least one element chosen from among yttrium, cerium, lanthanum and other rare earths, the remainder being iron and impurities resulting from manufacturing or deoxidizing, the said composition also satisfying the two following relationships: in relationship to the solidification mode: remainder a=eq. Nia?0.5×eq. Cra<3.60 where eq. Cra=Cr+0.7×Si+0.2×Mn+1.37×Mo+3×Ti+6×Al+4×V, and where eq. Nia=Ni+22×C+0.5×Cu, in relationship to the rate of residual ferrite: remainder b=eq. Nib?2×eq. Crb>?41 where eq. Crb=Cr+0.7×Si+1.37×Mo+3×Ti+6×Al+4×V, and where eq. Nib=Ni+22×C+0.5×Cu+0.Type: GrantFiled: November 1, 2002Date of Patent: May 24, 2005Assignee: UsinorInventors: Jean-Michel Hauser, Christophe Bourgin
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Publication number: 20030103859Abstract: Austenitic alloy for high-temperature strength with improved pourability and manufacturing, procedure for manufacturing billets and wireType: ApplicationFiled: November 1, 2002Publication date: June 5, 2003Applicant: USINORInventors: Jean-Michel Hauser, Christophe Bourgin
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Publication number: 20030021716Abstract: Austenitic stainless steel for cold working suitable for later machining, characterized by the following composition by weight:Type: ApplicationFiled: July 25, 2002Publication date: January 30, 2003Applicant: USINORInventors: Jean-Michel Hauser, Raphael Craen
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Patent number: 6485680Abstract: Resulfurized stainless steel with high machinability and having an improved corrosion resistance, which includes, in its composition, anorthite- and/or pseudo-wollastonite- and/or gehlenite-type lime aluminosilicate inclusions combined with CrMnS inclusions, the chromium content of which is between 30% and 70%.Type: GrantFiled: March 5, 2001Date of Patent: November 26, 2002Assignee: Ugine-Savoie ImphyInventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
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Patent number: 6440579Abstract: Process for producing a drawn wire, in particular a wire for reinforcing tires, having a diameter of less than 0.3 mm by drawing a base wire rod having a diameter of greater than 5 mm or a predrawn base wire made of steel with the following composition by weight: carbon≦40×10−3% nitrogen≦40×10−3%, the carbon and nitrogen satisfying the relationship C+N≦50×10−3%, 0.2%≦silicon≦1.0%, 0.2%≦manganese≦5%, 9%≦nickel≦12%, 15%≦chromium≦20%, 1.5%≦copper≦4%, sulfur≦10×10−3%, phosphorus<0.050%, 40×10−4%≦total oxygen≦120×10−4%, 0.1×10−4%≦aluminum≦20×10−4%, magnesium≦5×10−4%, 0.Type: GrantFiled: February 18, 1998Date of Patent: August 27, 2002Assignees: Ugine Savoie Societe de Production Internationale de Trefiles, Sprint MetalInventors: Jean-Michel Hauser, Joël Marandel, Etienne Havette
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Publication number: 20010046449Abstract: Resulfurized stainless steel with high machinability and having an improved corrosion resistance, which includes, in its composition, anorthite- and/or pseudo-wollastonite- and/or gehlenite-type lime aluminosilicate inclusions combined with CrMnS inclusions, the chromium content of which is between 30% and 70%.Type: ApplicationFiled: March 5, 2001Publication date: November 29, 2001Applicant: UGINE-SAVOIE IMPHYInventors: Jean Ragot, Jean-Michel Hauser, Christian Trombert
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Patent number: 6322907Abstract: Composite wire comprising a core made of carbon steel the chemical composition of which consists, by weight, of: 0.15%≦C≦0.6%; 0.1%≦Si≦0.3%; 0.3%≦Mn≦1%; 0% V≦0.3%; the remainder being iron and impurities resulting from processing; and an outer layer made of stainless steel the composition of which consists, by weight, of 0.005%≦C≦0.05%; 0.005%≦N≦0.05%; 0.1%≦Si≦2%; 0.1%≦Mn≦5%; 5%≦Ni≦12%; 10%≦Cr ≦20%; 0%≦Mo≦3%; 0%≦Cu≦4%; the remainder being iron and impurities resulting from processing. The diameter of the wire is less than 1 mm and the tensile strength of the wire is in excess of 2000 MPa.Type: GrantFiled: July 29, 1999Date of Patent: November 27, 2001Assignees: Aster, Ugine-Savoie ImphyInventors: Jean-Michel Hauser, Marc Francois
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Patent number: 6106639Abstract: Stainless steel wire of diameter smaller than 2 mm and with a tensile strength greater than 2100 MPa, consisting of a steel whose chemical composition includes, by weight: 0%.ltoreq.C.ltoreq.0.03%, 0%.ltoreq.Mn.ltoreq.2%, 0%.ltoreq.Si.ltoreq.0.5%, 8%.ltoreq.Ni.ltoreq.9%, 17%.ltoreq.Cr.ltoreq.18%, 0%.ltoreq.Mo.ltoreq.0.4%, 3%.ltoreq.Cu.ltoreq.3.5%, 0%.ltoreq.N.ltoreq.0.03%, S.ltoreq.0.01%, P.ltoreq.0.04%, the remainder being iron and impurities resulting from the production. Process of manufacture of the wire and uses.Type: GrantFiled: December 18, 1997Date of Patent: August 22, 2000Assignees: Sprint Metal Societe de Production Internationale de Trefiles, Imphy S.A., Ugine SavoieInventors: Joel Marandel, Jean-Michel Hauser
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Patent number: 6096441Abstract: An austenoferritic stainless steel with high tensile elongation includes iron and the following elements in the indicated weight amounts based on total weight:carbon<0.04%0.4%<silicon<1.2%2%<manganese<4%0.1%<nickel<1%18%<chromium<22%0.05%<copper<4%sulfur<0.03%phosphorus<0.1%0.1%<nitrogen<0.3%molybdenum<3%the steel having a two-phase structure of austenite and ferrite and comprising between 30% and 70% of austenite, whereinCreq=Cr %+Mo %+1.5 Si %Nieq=Ni %+0.33 Cu %+0.5 Mn %+30 C %+30 N %and Creq/Nieq is from 2.3 to 2.75, and whereinIM=551-805(C+N)%--8.52 Si %--8.57 Mn %--12.51 Cr %--36 Ni %--34.5 Cu %--14 Mo %,IM being from 40 to 115.Type: GrantFiled: June 30, 1998Date of Patent: August 1, 2000Assignee: USINORInventors: Jean-Michel Hauser, Herve Sassoulas
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Patent number: 6086689Abstract: Process for manufacturing a foil of ferritic stainless steel having a high aluminum content, which can be used in particular for a catalyst support in a motor-vehicle exhaust, wherein a ferritic stainless steel sheet of the following composition:0.005%<carbon<0.060%10%<chromium<23%0.1%<aluminum<3%0.003%<nitrogen<0.030%0.1%<manganese<2%0.1%<silicon<2%rare-earth elements in a proportion of between 0.03% and 0.15%, is subjected to:plating between two sheets of aluminum in order to obtain a laminate, rolling the laminate to a thickness of 0.03-0.25 mm to form a foil, static diffusion annealing the foil in a hydrogen atmosphere, and finish rolling greater than 20%.Type: GrantFiled: March 2, 1998Date of Patent: July 11, 2000Assignee: UsinorInventors: Herve Sassoulas, Jean-Marc Herbelin, Jean-Michel Hauser, Frederic Moser
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Patent number: 6056917Abstract: Austenitic stainless steel having a very low nickel content, of the following composition by weight:Carbon<0.1%0.1%<silicon<1%5%<manganese<9%0.1%<nickel<2%13%<chromium<19%1%<copper<4%0.1%<nitrogen<0.40%5.times.10.sup.-4 %<boron<50.times.10.sup.-4 %phosphorus<0.05%sulfur<0.01%.Type: GrantFiled: July 29, 1998Date of Patent: May 2, 2000Assignees: Usinor, Ugine SavoieInventors: Laurent Chesseret, Jean-Michel Hauser
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Patent number: 6048416Abstract: Steel, steel wire, and a process for forming a drawn wire, especially tire-reinforcing wire of diameter smaller than 0.4 mm, by drawing a steel of the following composition by weight: 0.005%.ltoreq.carbon.ltoreq.0.050%; 0.005%.ltoreq.nitrogen.ltoreq.0.050%; 0.1%.ltoreq.silicon.ltoreq.2.0%; 0.1%.ltoreq.manganese.ltoreq.5%; 5%.ltoreq.nickel.ltoreq.12%; 10%.ltoreq.chromium.ltoreq.20%; 0.01%.ltoreq.copper.ltoreq.4%; 0.01%.ltoreq.molybdenum.ltoreq.3%,the base wire being subjected to:drawing to a cumulative deformation ratio .epsilon. of larger than 2 and smaller than 4,an intermediate annealing treatment at above 700.degree. C.final drawing to a cumulative deformation ratio .epsilon. of smaller than 4.5 and larger than 3.Type: GrantFiled: April 29, 1999Date of Patent: April 11, 2000Assignees: Ugine-Savoie Imphy, Sprint Metal - Societe de Production Internationale de TrefilesInventors: Jean-Michel Hauser, Joel Marandel
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Patent number: 5779820Abstract: The present invention relates to a process for producing a ferritic stainless steel having an improved corrosion resistance, and especially resistance to intergranular corrosion and to pitting corrosion. The steel is subjected, in a first phase, to cooling at a rate of between 400.degree. C. and 600.degree. C./hour down to a temperature of 900.degree. C. and then, in a second phase, to rapid cooling at a rate of between 1200.degree. C. and 1400.degree. C./h.Type: GrantFiled: March 17, 1997Date of Patent: July 14, 1998Assignee: Usinor SacilorInventors: Jean-Michel Hauser, Pascale Haudrechy
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Patent number: 5201363Abstract: The method comprises effecting the solidification of the metal in a continuous casting ingot mould constituted by two cooled rolls (2) rotating in opposite directions and disposed in confronting relation so as to define a casting space therebetween, continuously extracting from the ingot mould a solidified steel strip (3), and, below the ingot mould, subjecting the strip to a quenching medium (6) so as to cool it sufficiently rapidly to prevent formation of austenite. This medium may be formed by a quenching bath placed in a container (4) disposed under the rolls (2) and having a bottom provided with an opening (5) for the passage of the solidified strip (3). The quenching medium may also be formed by an inert gas in the liquid state blown onto the product by nozzles. The steel strips obtained are easier to shear and coiled at the output end of the casting line owing to the absence of martensite in the ferritic matrix.Type: GrantFiled: August 12, 1991Date of Patent: April 13, 1993Assignees: Usinor Sacilor, Thyssen Stahl Aktiengesellschaft, Thyssen Edelstahlwerke AGInventors: Philippe Demarez, Jean-Michel Hauser
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Patent number: 4459161Abstract: A method and apparatus for manufacturing bars made of an alloy by unidirectional solidification.The mold is moved relative to a hot source and a cold source disposed below the hot source. The relative positions of the two sources as well as their efficiency and the displacement speed of the mold are set so that there is established within the alloy contained in the mold a planar solidification front with a high thermal gradient at the level of the front, and so that there is produced an orientation of the structure of the alloy which is perpendicular to the solidification front. During the whole duration of the solidification, the mold is fed with alloy powder having the required nominal composition at the rate corresponding to the quantity of alloy solidified per unit of time.Type: GrantFiled: September 30, 1981Date of Patent: July 10, 1984Assignee: Office National d'Etudes et de Recherches AerospatialesInventors: Jean-Michel Hauser, Fernand Pautonnier, Maurice Rabinovitch
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Patent number: 4318756Abstract: A refractory composite material has a nickel-based matrix, containing chromium, hardened by elements such as W in solid solution and hardened by precipitation of a .gamma.'(Ni,Xi).sub.3 (Al,Yi) phase, Xi representing elements different from Ni and Yi elements different from Al which the matrix may contain and which are respectively substituted for Ni and Al atoms in the formation of the .gamma.' precipitate, and with aligned monocrystalline fibers of a transition metal monocarbide, preferably niobium monocarbide, imbedded in said matrix, as obtained by unidirectional solidification. The chromium proportion of the material is maintained at a value lower than that from which the chromium carbide of formula Cr.sub.23 C.sub.6 is formed in the matrix at the expense of the niobium carbide of the reinforcement fibers at the operating temperatures foreseen for the material.Type: GrantFiled: November 13, 1979Date of Patent: March 9, 1982Assignee: Office National d'Etudes et de Recherches Aerospatiales O.N.E.R.A.Inventors: Herve Bibring, Tasadduq Khan, Maurice Rabinovitch, Jean-Francois Stohr, Jean-Michel Hauser
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Patent number: 4307769Abstract: A method and apparatus for manufacturing bars made of an alloy by unidireonal solidification. The mold is moved relative to a hot source and a cold source disposed below the hot source. The relative positions of the two sources as well as their efficiency and the displacement speed of the mold are set so that there is established within the alloy contained in the mold a planar solidification front with a high thermal gradient at the level of the front, and so that there is produced an orientation of the structure of the alloy which is perpendicular to the solidification front. During the whole duration of the solidification, the mold is fed with alloy powder having the required nominal composition at the rate corresponding to the quantity of alloy solidified per unit of time.Type: GrantFiled: December 18, 1979Date of Patent: December 29, 1981Assignee: Office National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.)Inventors: Jean-Michel Hauser, Fernand Pautonnier, Maurice Rabinovitch