Patents by Inventor Oddvar KNUSTAD
Oddvar KNUSTAD 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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Patent number: 11932913Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Bi2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Sb2S3, and/or between 0.1 and 5% of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: GrantFiled: December 21, 2018Date of Patent: March 19, 2024Assignee: ELKEM ASAInventors: Emmanuelle Ott, Oddvar Knustad
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Patent number: 11486012Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: GrantFiled: December 21, 2018Date of Patent: November 1, 2022Assignee: ELKEM ASAInventors: Emmanuelle Ott, Oddvar Knustad
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Patent number: 11486011Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: GrantFiled: December 21, 2018Date of Patent: November 1, 2022Assignee: ELKEM ASAInventor: Oddvar Knustad
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Patent number: 11479828Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: GrantFiled: December 21, 2018Date of Patent: October 25, 2022Assignee: ELKEM ASAInventors: Emmanuelle Ott, Oddvar Knustad
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Patent number: 11098383Abstract: An inoculant for the manufacture of cast iron with lamellar, compacted or spheroidal graphite is disclosed. The inoculant has a particulate ferrosilicon alloy having about 40 to 80 wt % silicon, about 0.1 to 10 wt % calcium, 0 and 10% by weight of rare earths, for example cerium and/or lanthanum, and up to 5 wt % aluminium the balance being iron and incidental impurities in the ordinary amount, wherein the inoculant additionally has 0.1 to 10 wt %, based on the total weight of inoculant, antimony oxide where said antimony oxide is in particulate form and is mixed or blended with the ferrosilicon alloy particles, or is simultaneously added to cast iron together with the particulate ferrosilicon alloy particles.Type: GrantFiled: June 29, 2017Date of Patent: August 24, 2021Assignee: ELKEM ASAInventor: Oddvar Knustad
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Publication number: 20200407811Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Bi2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Sb2S3, and/or between 0.1 and 5% of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: ApplicationFiled: December 21, 2018Publication date: December 31, 2020Inventors: Emmanuelle OTT, Oddvar KNUSTAD
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Publication number: 20200399726Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: ApplicationFiled: December 21, 2018Publication date: December 24, 2020Inventors: Emmanuelle OTT, Oddvar KNUSTAD
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Publication number: 20200399725Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: ApplicationFiled: December 21, 2018Publication date: December 24, 2020Inventor: Oddvar KNUSTAD
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Publication number: 20200340069Abstract: An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having between 40 and 80% by weight of Si; 0.02-8% by weight of Ca; 0-5% by weight of Sr; 0-12% by weight of Ba; 0-15% by weight of rare earth metal; 0-5% by weight of Mg; 0.05-5% by weight of Al; 0-10% by weight of Mn; 0-10% by weight of Ti; 0-10 by weight of Zr; the balance being Fe and incidental impurities in the ordinary amount, wherein the inoculant additionally contains, by weight, based on the total weight of inoculant: 0.1 to 15% of particulate Sb2S3, and optionally between 0.1 and 15% of particulate Bi2O3, and/or between 0.1 and 15% of particulate Sb2O3, and/or between 0.1 and 15% of particulate Bi2S3, and/or between 0.1 and 5% of one or more of particulate Fe3O4, Fe2O3, FeO, or a mixture thereof, and/or between 0.1 and 5% of one or more of particulate FeS, FeS2, Fe3S4, or a mixture thereof, a method for producing such inoculant and use of such inoculant.Type: ApplicationFiled: December 21, 2018Publication date: October 29, 2020Inventors: Emmanuelle OTT, Oddvar KNUSTAD
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Publication number: 20190169705Abstract: An inoculant for the manufacture of cast iron with lamellar, compacted or spheroidal graphite is disclosed. The inoculant has a particulate ferrosilicon alloy having about 40 to 80 wt % silicon, about 0.1 to 10 wt % calcium, 0 and 10% by weight of rare earths, for example cerium and/or lanthanum, and up to 5 wt % aluminium the balance being iron and incidental impurities in the ordinary amount, wherein the inoculant additionally has 0.1 to 10 wt %, based on the total weight of inoculant, antimony oxide where said antimony oxide is in particulate form and is mixed or blended with the ferrosilicon alloy particles, or is simultaneously added to cast iron together with the particulate ferrosilicon alloy particles.Type: ApplicationFiled: June 29, 2017Publication date: June 6, 2019Applicant: ELKEM ASAInventor: Oddvar KNUSTAD