Patents by Inventor Lucien Coutu
Lucien Coutu 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: 7819990Abstract: An iron-cobalt alloy containing in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C, a total of O, N and S content ranging between traces of 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces of 3%; a total of Ta and Nb content ranging between traces and 1%; and the rest being iron and impurities resulting from production wherein: 1.23×(Al+Mo) %+0.84 (Si+Cr+V) %?0.15×(Co %?15)?2.1, and 14.5×(Al+Cr) %+12×(V+Mo) %+25×Si %?21. The inventive alloy is useful for making electromagnetic actuator mobile cores.Type: GrantFiled: August 15, 2006Date of Patent: October 26, 2010Assignee: Imphy Ugine PrecisionInventors: Thierry Waeckerle, Lucien Coutu, Marc Leroy, Laurent Chaput, Herve Fraisse
-
Patent number: 7575712Abstract: The invention concerns a ferromagnetic alloy whereof the chemical composition comprises, in wt. %: 32.5%?Ni?72.5%; 5%?Cr?18%; 0.01%?Mn?4%; C?1%; optionally one or more elements selected among Mo, V, Co, Cu, Si, W, Nb and Al, the total contents of said elements being not more than 10%, the remainder being iron and impurities resulting from preparation, the chemical composition further satisfying the following relationships: Cr?1.1Ni+23.25?0%; 45Cr+11Ni?1360; Ni+3Cr?60% if Ni?37.5; Cr?7.5 if Ni?37.5. The invention also concerns the use of said alloy for making heating elements for induction heated cooking appliances.Type: GrantFiled: June 1, 2004Date of Patent: August 18, 2009Assignee: Imphy AlloysInventors: Herve Fraisse, Thierry Waeckerle, Yves Grosbety, Lucien Coutu
-
Publication number: 20070029013Abstract: An iron-cobalt alloy containing in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C, a total of O, N and S content ranging between traces of 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces of 3%; a total of Ta and Nb content ranging between traces and 1%; and the rest being iron and impurities resulting from production wherein: 1.23×(Al+Mo) %+0.84 (Si+Cr+V) %?0.15×(Co %?15)?2.1, and 14.5×(Al+Cr) %+12×(V+Mo) %+25×Si %?21. The inventive alloy is useful for making electromagnetic actuator mobile cores.Type: ApplicationFiled: August 15, 2006Publication date: February 8, 2007Inventors: Thierry WAECKERLE, Lucien Coutu, Marc Leroy, Laurent Chaput, Herve Fraisse
-
Iron-cobalt alloy, in particular for electromagnetic actuator mobile core and method for making same
Patent number: 7128790Abstract: The invention concerns an iron-cobalt alloy, characterised in that it comprises in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C; a total of O, N and S content ranging between traces and 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces and 3%; a total of Ta and Nb content ranging between traces and 1%; the rest being iron and impurities resulting from production; and in that: 1.23×(Al+Mo)%+0.84 (Si+Cr+V)%?0.15×(Co%?15)?2.1 and in that 14.5×. (Al+Cr)%+12×(V+Mo)%+25×Si%?21. The inventive alloy is useful for making electromagnetic actuator mobile cores.Type: GrantFiled: May 11, 2001Date of Patent: October 31, 2006Assignee: Imphy Ugine PrecisionInventors: Thierry Waeckerle, Lucien Coutu, Marc Leroy, Laurent Chaput, Hervé Fraisse -
Publication number: 20060192181Abstract: The invention concerns a ferromagnetic alloy whereof the chemical composition comprises, in wt. %: 32.5% ?Ni ?72.5%; 5% ?Cr?18%; 0.01% ?Mn?4%, C?1%; optionally one or more elements selected among Mo, V, Co, Cu, Si, W, Nb and Al, the total contents of said elements being not more than 10%, the remainder being iron and impurities resulting from preparation, the chemical composition further satisfying the following relationships: Cr?1.1Ni+23.25?0%; 45Cr+11Ni?1360 ;Ni+3Cr?60% if Ni?37.5; Cr?7.5 if Ni?37.5. The invention also concerns the use of said alloy for making heating elements for induction heated cooking appliances.Type: ApplicationFiled: June 1, 2004Publication date: August 31, 2006Inventors: Herve Fraisse, Thierry Waeckerle, Yves Grosbety, Lucien Coutu
-
Iron-cobalt alloy, in particular for electromagnetic actuator mobile core and method for making same
Publication number: 20040099347Abstract: The invention concerns an iron-cobalt alloy, characterised in that it comprises in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C; a total of O, N and S content ranging between traces and 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces and 3%; a total of Ta and Nb content ranging between traces and 1%; the rest being iron and impurities resulting from production; and in that: 1.23×(Al+Mo) %+0.84 (Si+Cr+V) %−0.15×(Co %−15)≦2.1 and in that 14.5×. (Al+Cr) %+12×(V+Mo) %+25×Si %≧21. The inventive alloy is useful for making electromagnetic actuator mobile cores.Type: ApplicationFiled: February 14, 2003Publication date: May 27, 2004Applicant: IMPHY UGINE PRECISIONInventors: Thierry Waeckerle, Lucien Coutu, Marc Leroy, Laurent Chaput, Herve Fraisse -
Patent number: 6734610Abstract: Masking device for a flat-screen color-display cathode-ray tube, comprising a support frame for a tensioned shadow mask and a tensioned shadow mask. The support frame is made of a hardened Fe—Ni alloy having a thermal expansion coefficient between 20° C. and 150° C. of less than 5×10−6 K−1 and a yield stress Rp0.2 at 20° C. of greater than 700 MPa; the tensioned shadow mask is made of an Fe—Ni alloy having a thermal expansion coefficient between 20° C. and 150° C. of less than 3×10−6 K−1; the Fe—Ni alloys are chosen so that: below a temperature T1, the mean expansion coefficient &agr;20-T, between 20° C. and T, of the alloy of the support frame is greater than the mean expansion coefficient &agr;20-T of the alloy of the shadow mask, and above T1 the coefficient &agr;20-T of the alloy of the frame is less than the coefficient &agr;20-T of the alloy of the shadow mask, where T1<350° C. and preferably <300° C.Type: GrantFiled: March 27, 2001Date of Patent: May 11, 2004Assignee: Imphy Ugine PrecisionInventors: Ricardo Cozar, Pierre-Louis Reydet, Lucien Coutu
-
Patent number: 6663730Abstract: A maraging steel strip or part and process for manufacture of a strip or of a part cut out of a strip of cold-rolled maraging steel and hardened by a hardening heat treatment. In the process, before the hardening heat treatment is performed, the strip or the part is subjected to cold plastic deformation with a degree of working greater than 30% and the strip or the part is subjected to recrystallization annealing in order to obtain a fine-grained structure with ASTM index higher than 8. The composition by weight of the maraging steel is: 12%≦Ni≦24.5%; 2.5%≦Mo≦12%; 4.17%≦Co≦20%, Al %≦0.15%; Ti≦0.1%; N≦0.003%; Si≦0.1%; Mn≦0.1%; C≦0.005%; S≦0.001%; P≦0.005%; H≦0.0003%; O≦0.001%; iron and impurities resulting from smelting, the chemical composition also satisfying the relationships: 20%≦Ni+Mo≦27%; 50≦Co×Mo≦200; Ti×N≦2×10−4.Type: GrantFiled: November 19, 2001Date of Patent: December 16, 2003Assignee: Imphy Ugine PrecisionInventor: Lucien Coutu
-
Publication number: 20030164211Abstract: Strip made of an austenitic Fe—Ni alloy or Fe—Ni—Co alloy or Fe—Ni—Co—Cu alloy, the chemical composition of the alloy of which comprises, in % by weight: 30%≦Ni≦70%; 0%≦Cu+2×Co≦20%; 0%≦Mn+Cr<5%; 0%≦W+2×Mo≦2%; 0%≦Ti+V+Nb+Al≦1%; 0.0005%≦B≦0.007%; the balance being iron and impurities such as C, S, P, O and N; the chemical composition being such that Fe+Ni+Cu+Co≧95%. The alloy has a cubic texture with a cubic texture index Dc≧7. Process for manufacturing a strip. Process for manufacturing a part by mechanical cutting.Type: ApplicationFiled: April 7, 2003Publication date: September 4, 2003Inventors: Lucien Coutu, Vincent Durieux, Jerome Giusti
-
Publication number: 20020059967Abstract: A maraging steel strip or part and process for manufacture of a strip or of a part cut out of a strip of cold-rolled maraging steel and hardened by a hardening heat treatment. In the process, before the hardening heat treatment is performed, the strip or the part is subjected to cold plastic deformation with a degree of working greater than 30% and the strip or the part is subjected to recrystallization annealing in order to obtain a fine-grained structure with ASTM index higher than 8. The composition by weight of the maraging steel is: 12%≦Ni≦24.5%; 2.5%≦Mo≦12%; 4.17%≦Co≦20%, Al%≦0.15%; Ti≦0.1%; N≦0.003%; Si≦0.1%; Mn≦0.1%; C≦0.005%; S≦0.001%; P≦0.005%; H≦0.0003%; O≦0.001%; iron and impurities resulting from smelting, the chemical composition also satisfying the relationships: 20%≦Ni+Mo≦27%; 50≦Co×Mo≦200; Ti×N≦2×10−4.Type: ApplicationFiled: November 19, 2001Publication date: May 23, 2002Applicant: IMPHY UGINE PRECISIONInventor: Lucien Coutu
-
Patent number: 6350324Abstract: Soft magnetic alloy of the iron-nickel type, the chemical composition of which comprises, in % by weight: 34%≦Ni≦40%; 7%≦Cr≦10%; 0.5%≦Co≦3%; 0.1%≦Mn≦1%; O≦0.007%; S≦0.002%; N≦0.004%; with N+S+O≦0.01%; iron and impurities 5 resulting from the production process. Use in motors especially suited for use in horology.Type: GrantFiled: March 27, 2000Date of Patent: February 26, 2002Assignee: Imphy Ugine PrecisionInventors: Thierry Waeckerle, Lucien Coutu, Laurent Chaput
-
Publication number: 20020008456Abstract: Masking device for a flat-screen color-display cathode-ray tube, comprising a support frame for a tensioned shadow mask and a tensioned shadow mask. The support frame is made of a hardened Fe—Ni alloy having a thermal expansion coefficient between 20° C. and 150° C. of less than 5×10−6 K−1 and a yield stress Rp0.2 at 20° C. of greater than 700 MPa; the tensioned shadow mask is made of an Fe—Ni alloy having a thermal expansion coefficient between 20° C. and 150° C. of less than 3×10−6 K−1; the Fe—Ni alloys are chosen so that: below a temperature T1, the mean expansion coefficient &agr;20-T, between 20° C. and T, of the alloy of the support frame is greater than the mean expansion coefficient &agr;20-T of the alloy of the shadow mask, and above T1 the coefficient &agr;20-T of the alloy of the frame is less than the coefficient &agr;20-T of the alloy of the shadow mask, where T1<350° C. and preferably <300° C.Type: ApplicationFiled: March 27, 2001Publication date: January 24, 2002Inventors: Ricardo Cozar, Pierre-Louis Reydet, Lucien Coutu
-
Publication number: 20010005523Abstract: Cooking vessel intended to be induction heated, comprising a heating part made of a ferromagnetic alloy having a Curie temperature of between 150° C. and 370° C. and a magnetostriction coefficient &lgr;s≦5×10−6 in absolute value. FeNiCuX ferromagnetic alloy for the manufacture of the cooking vessel, the chemical composition of which comprises from 50% to 85% of Ni, less than 50% of Cu, less than 12% of X=Cr+Mo+Mn+Si+Al+W+Nb+V+Ti, the balance being iron and impurities; the composition satisfies the relationships (35/25)×(75-Ni)≦Cu≦(50/35)×(85-Ni) and (7/20)×(Ni-65)≦X≦(12/35)×(Ni-50). Production method and method of use.Type: ApplicationFiled: February 5, 2001Publication date: June 28, 2001Applicant: IMPHY UGINE PRECISIONInventors: Laurent Chaput, Lucien Coutu, Marc Leroy, Yves Grosbety
-
Patent number: 6214401Abstract: Cooking vessel intended to be induction heated, comprising a heating part made of a ferromagnetic alloy having a Curie temperature of between 150° C. and 370° C. and a magnetostriction coefficient &lgr;s≦5×10−6 in absolute value. FeNiCuX ferromagnetic alloy for the manufacture of the cooking vessel, the chemical composition of which comprises from 50% to 85% of Ni, less than 50% of Cu, less than 12% of X=Cr+Mo+Mn+Si+Al+W+Nb+V+Ti, the balance being iron and impurities; the composition satisfies the relationships (35/25)×(75−Ni)≦Cu≦(50/35)×(85−Ni) and (7/20)×(Ni−65)≦X≦(12/35)×(Ni−50). Production method and method of use.Type: GrantFiled: December 1, 1999Date of Patent: April 10, 2001Assignee: Imphy Ugine PrecisionInventors: Laurent Chaput, Lucien Coutu, Marc Leroy, Yves Grosbety
-
Patent number: 6190465Abstract: Soft magnetic alloy of the iron-nickel type, the chemical composition of which comprises, by weight: 40%≦Ni+Co≦65%; 0%≦Co≦7%; 2%≦Cr≦5%; 1%≦Ti≦3%; 0%≦Al≦0.5%; 0%≦Mn+Si≦2%; optionally, up to 3% Mo, 2% W, 2% V, 1.5% Nb, 1% Ta and 3% Cu, the sum of the Cr, Mo, W, V, Nb, Ta and Cu contents being less than 7% and the sum of the Mo, W, V, Nb, Ta and Cu contents being less than 4%; the balance being iron and impurities, such as carbon, sulfur and phosphorus, resulting from the smelting process, the chemical composition furthermore satisfying the relationships: Cr<5−0.015×(Ni+Co−52.5)2, if: Ni+Co≦52.5; Cr<5−0.040×(Ni+Co−52.5)2, if: Ni+Co≧52.5; the alloy having a saturation induction Bs of greater than 0.9 tesla, a coercive field of less than 10 A/m, an electrical resistivity p of greater than 60 &mgr;&OHgr;.cm and a hardness of greater than 200 HV. Process for manufacturing the alloy and uses.Type: GrantFiled: July 2, 1998Date of Patent: February 20, 2001Assignee: Imphy Ugine PrecisionInventors: Lucien Coutu, Laurent Chaput, Thierry Waeckerle
-
Patent number: 6146474Abstract: An iron--cobalt alloy the chemical composition of which comprises, by weight: 35%.ltoreq.Co.ltoreq.55%; 0.5%.ltoreq.V.ltoreq.2.5%; 0.02%.ltoreq.Ta+2.times.Nb.ltoreq.0.2%; 0.0007%.ltoreq.B.ltoreq.0.007%; C.ltoreq.0.05%; the balance being iron and impurities resulting from the smelting operation.Type: GrantFiled: January 15, 1999Date of Patent: November 14, 2000Assignee: Imphy Ugine PrecisionInventors: Lucien Coutu, Laurent Chaput
-
Patent number: 5838080Abstract: Stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), in which the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight: 40%.ltoreq.Ni+Co.ltoreq.60%, 0%.ltoreq.Co.ltoreq.7%, 8%.ltoreq.Cr.ltoreq.13.5%, 8%.ltoreq.Cr+Mn+Si+Mo+Nb+V+W.ltoreq.13.5%, the remainder being iron and impurities resulting from the manufacture. Soft magnetic alloy.Type: GrantFiled: August 6, 1997Date of Patent: November 17, 1998Assignee: Imphy S.A.Inventors: Georges Couderchon, Laurent Chaput, Lucien Coutu, Dominique Gautard
-
Patent number: 5788783Abstract: An iron-nickel alloy useful for the manufacture of a stretched shadow mask, the chemical composition of the iron-nickel alloy containing by weight: 69%.ltoreq.Ni.ltoreq.83%, 0%.ltoreq.Mo.ltoreq.7%, 0%.ltoreq.Cu.ltoreq.8%, 0%.ltoreq.Co.ltoreq.1.5%, 0%.ltoreq.W.ltoreq.7%, 0%.ltoreq.Nb.ltoreq.7%, 0%.ltoreq.V.ltoreq.7%, 0%.ltoreq.Cr.ltoreq.7%, 0%.ltoreq.Ta.ltoreq.7%, 0%.ltoreq.C.ltoreq.0.1%, 0%.ltoreq.Mn.ltoreq.1%, 0%.ltoreq.Si.ltoreq.1%, 0%.ltoreq.Ti.ltoreq.1.2%, 0%.ltoreq.Al.ltoreq.1.2%, 0%.ltoreq.Zr.ltoreq.1.2%, 0%.ltoreq.Hf.ltoreq.1.2%, S.ltoreq.0.010% the balance being iron and impurities resulting from smelting, the chemical composition furthermore satisfying the relationships:Co+ni+1.5.times.Cu.gtoreq.79.5%; 3.times.(Co+Ni)-2.times.Cu.gtoreq.206%; Co+Ni+7.times.Cu.ltoreq.130%; 7.times.(Co+Ni)+2.times.Cu.ltoreq.581%; Mo+W+Nb+V+Cr+Ta.ltoreq.7%; Ti+al+Zr+Hf.ltoreq.1.2%; C+Mn+Si.ltoreq.1%; 80.5.ltoreq.Co+Ni+0.80.times.Cu.ltoreq.81.7%.Type: GrantFiled: July 18, 1996Date of Patent: August 4, 1998Assignee: Imphy S.A.Inventors: Lucien Coutu, Georges Couderchon, Jacques Baudry
-
Patent number: 5783145Abstract: An iron-nickel alloy, the chemical composition of which includes by weight:30%.ltoreq.Ni+Co.ltoreq.85%;0%.ltoreq.Co+Cu+Mn.ltoreq.10%;0%.ltoreq.Mo+W+Cr.ltoreq.4%;0%.ltoreq.V+Si.ltoreq.2%;0%.ltoreq.Nb+Ta.ltoreq.1%;0.003%.ltoreq.C.ltoreq.0.05% 0.003%.ltoreq.Ti.ltoreq.0.15%;0.003%.ltoreq.Ti+Zr+Hf.ltoreq.0.15%;0.001%<S+Se+Te<0.015%;and the remainder, iron and impurities resulting from production; in addition, the chemical composition satisfies the relationship:0.ltoreq.Nb+Ta+Ti+Al.ltoreq.1%.A cold-rolled strip with a cubic texture and its uses.Type: GrantFiled: February 27, 1997Date of Patent: July 21, 1998Assignee: Imphy S.A.Inventors: Lucien Coutu, Pierre Louis Reydet
-
Method for producing soft magnetic alloys with very high permeability and alloys resulting therefrom
Patent number: 5441578Abstract: Method for producing soft magnetic alloys with very high permeability, in which an ingot is cast containing in its composition more than 70% nickel or more than 45% cobalt, the metal having, or not having, been subjected to a secondary metallurgical step, the ingot is remelted under an electroconductive slag, the remelted ingots being converted into strips after hot rolling then cold rolling, the strips then being subjected to a treatment for developing magnetic characteristics, in which method the alloy is remelted under an electroconductive slag comprising at least the first three components of the system: CaF.sub.2, CaO, SiO.sub.2, Al.sub.2 O.sub.3, and defining a zone in a ternary diagram delimited by the following proportions by weight:CaF.sub.2 (50-75)%CaO (20-30)%SiO.sub.2 (5-15)%with Al.sub.2 O.sub.3 <3%.Type: GrantFiled: July 29, 1993Date of Patent: August 15, 1995Assignee: Imphy S. A.Inventors: Georges Couderchon, Lucien Coutu, Michel Faral