Patents by Inventor Daniel GULLBERG
Daniel GULLBERG 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: 20240141466Abstract: A corrosion resistant duplex stainless steel (ferritic austenitic alloy) is suitable for use in a plant for the production of urea. Uses of the corrosion resistant duplex stainless steel include in objects made of said duplex stainless steel, in methods for the production of urea, in a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and in methods of modifying an existing plant for the production of urea. In one aspect, the composition consists of in weight % (wt %): C 0.010 to 0.015; S 0.08 to 0.23; Mn 1.0 to 1.05; Cr 29.07 to 29.92; Ni 5.76 to 7.17; Mo 3.0 to 4.0; W max 2.55; N 0.3 to 0.35; Cu max 0.01; S max 0.008; P max 0.008; at least one of Ti, Nb, Hf, Ca, Ba, V, and B max 0.5 total; balance Fe and unavoidable occurring impurities.Type: ApplicationFiled: January 9, 2024Publication date: May 2, 2024Applicant: Sandvik Intellectual Property ABInventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander SCHEERDER, Kirk OFEI
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Publication number: 20240035135Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea; and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure also relates to a method for the production of urea and to a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and to a method of modifying an existing plant for the production of urea.Type: ApplicationFiled: October 5, 2023Publication date: February 1, 2024Inventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander Aleida Antonius SCHEERDER, Kirk Anguah OFEI
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Publication number: 20220112585Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure relates to a method for the production of urea and to a plant for the production of urea having one or more parts made from the duplex stainless steel, and to a method of modifying an existing plant for the production of urea.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Applicant: Sandvik Intellectual Property ABInventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander SCHEERDER, Kirk OFEI
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Patent number: 11242584Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy), which is suitable for use in a plant for the production of urea and uses thereof. The disclosure also relates to objects made of the duplex stainless steel. Furthermore, the present disclosure relates to a method for the production of urea and to a plant for the production of urea having one or more parts made from the duplex stainless steel, and to a method of modifying an existing plant for the production of urea.Type: GrantFiled: July 20, 2016Date of Patent: February 8, 2022Assignee: Sandvik Intellectual Property ABInventors: Daniel Gullberg, Christina Haraldsson, Anders Wilson, Alexander Scheerder, Kirk Ofei
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Patent number: 11090627Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C ?0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10;? Mo 0-4.0; N 0.30-0.55;?? Cu 0-0.8; W 0-3.0; S ?0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: GrantFiled: April 24, 2020Date of Patent: August 17, 2021Assignee: Stamicarbon B.V.Inventors: Linn Larsson, Daniel Gullberg, Ulf Kivisäkk, Martin Östlund, Alexander Aleida Antonius Scheerder
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Patent number: 10994319Abstract: The present disclosure relates to a bimetallic tube comprising a first metallic tube having an inner diameter and an outer diameter, and a second metallic tube having an inner diameter and an outer diameter, wherein the first metallic tube is arranged within and force-fitted to the second metallic tube and wherein the first metallic tube comprises a zirconium (Zr) based alloy and wherein the second metallic tube comprises an austenitic stainless steel.Type: GrantFiled: June 30, 2017Date of Patent: May 4, 2021Assignee: Sandvik Intellectual Property ABInventors: James Shipley, Daniel Gullberg, Robert Mattsson
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Publication number: 20200254419Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C ?0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10;? Mo 0-4.0; N 0.30-0.55;?? Cu 0-0.8; W 0-3.0; S ?0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: ApplicationFiled: April 24, 2020Publication date: August 13, 2020Applicant: Stamicarbon B.V.Inventors: Linn LARSSON, Daniel GULLBERG, Ulf KIVISÄKK, Martin ÖSTLUND, Alexander Aleida Antonius SCHEERDER
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Patent number: 10710047Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C ?0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10;? Mo 0-4.0; N 0.30-0.55:? Cu 0-0.8; W 0-3.0; S ?0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: GrantFiled: June 29, 2018Date of Patent: July 14, 2020Assignee: Stamicarbon B.V.Inventors: Linn Larsson, Daniel Gullberg, Ulf Kivisäkk, Martin Östlund, Alexander Aleida Antonius Scheerder
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Publication number: 20190168274Abstract: The present disclosure relates to a bimetallic tube comprising a first metallic tube having an inner diameter and an outer diameter, and a second metallic tube having an inner diameter and an outer diameter, wherein the first metallic tube is arranged within and force-fitted to the second metallic tube and wherein the first metallic tube comprises a zirconium (Zr) based alloy and wherein the second metallic tube comprises an austenitic stainless steel.Type: ApplicationFiled: June 30, 2017Publication date: June 6, 2019Applicant: Sandvik Intellectual Property ABInventors: James SHIPLEY, Daniel GULLBERG, Robert MATTSSON
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Publication number: 20180304224Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C ?0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10;? Mo 0-4.0; N 0.30-0.55:? Cu 0-0.8; W 0-3.0; S ?0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: ApplicationFiled: June 29, 2018Publication date: October 25, 2018Applicant: Stamicarbon B.V.Inventors: Linn LARSSON, Daniel GULLBERG, Ulf KIVISÄKK, Martin ÖSTLUND, Alexander Aleida Antonius SCHEERDER
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Patent number: 10046297Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C 0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10; Mo 0-4.0; N 0.30-0.55; Cu 0-0.8; W 0-3.0; S 0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: GrantFiled: December 23, 2014Date of Patent: August 14, 2018Assignee: Stamicarbon B.V.Inventors: Linn Larsson, Daniel Gullberg, Ulf Kivisäkk, Martin Östlund, Alexander Aleida Antonius Scheerder
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Publication number: 20180209022Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy), which is suitable for use in a plant for the production of urea and uses thereof. The disclosure also relates to objects made of the duplex stainless steel Furthermore, the present disclosure relates to a method for the production of urea and to a plant for the production of urea having one or more parts made from the duplex stainless steel, and to a method of modifying an existing plant for the production of urea.Type: ApplicationFiled: July 20, 2016Publication date: July 26, 2018Inventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSSON, Alexander SCHEERDER, Kirk OFEI
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Publication number: 20180195158Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea; and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure also relates to a method for the production of urea and to a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and to a method of modifying an existing plant for the production of urea.Type: ApplicationFiled: July 20, 2016Publication date: July 12, 2018Applicant: STAMICARBON B.V.Inventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander Aleida Antonius SCHEERDER, Kirk Anguah OFEI
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Publication number: 20160325261Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C 0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10; Mo 0-4.0; N 0.30-0.55; Cu 0-0.8; W 0-3.0; S 0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: ApplicationFiled: December 23, 2014Publication date: November 10, 2016Applicant: Stamicarbon B.V.Inventors: Linn LARSSON, Daniel GULLBERG, Ulf KIVISÄKK, Martin ÖSTLUND, Alexander Aleida Antonius SCHEERDER
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Publication number: 20160319405Abstract: The elementary composition of a Hot Isostatic Pressed ferritic-austenitic steel alloy includes, in percentages by weight: C 0-0.05; Si 0-0.8; Mn 0-4.0; Cr more than 29-35; Ni 3.0-10; Mo 0-4.0; N 0.30-0.55; Cu 0-0.8; W 0-3.0; S 0-0.03; Ce 0-0.2; the balance being Fe and unavoidable impurities. Objects of the alloy can be useful in making components for a urea production plant that require processing such as machining or drilling, for example, in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.Type: ApplicationFiled: December 23, 2014Publication date: November 3, 2016Inventors: Linn LARSSON, Daniel GULLBERG, Ulf KIVISÄKK, Martin ÖSTLUND, Alexander Aleida Antonius SCHEERDER