Patents by Inventor Robert Sekula
Robert Sekula 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: 12165795Abstract: The present disclosure relates to a support structure for at least one winding of an inductive device, in particular a power transformer, comprising a press structure configured to transfer and distribute an compression force from a holding structure to the at least one winding, an insulator structure configured to electrically insulate the holding structure from the at least one winding, and a coolant flow structure configured to guide and distribute a flow of a liquid coolant to or from different parts of the at least one winding. The press structure, the insulator structure and the coolant flow structure are formed as one integrated part comprising a polymer material. The integrated part comprises a plurality of orifices for passage of the liquid coolant from a first side facing the holding structure to a second side facing the at least one winding.Type: GrantFiled: April 1, 2022Date of Patent: December 10, 2024Assignee: HITACHI ENERGY LTDInventors: Orlando Girlanda, Grzegorz Kmita, Michal Kozupa, Rongsheng Liu, Tomasz Nowak, Robert Sekula
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Publication number: 20240258011Abstract: The present disclosure relates to a support structure for at least one winding of an inductive device, in particular a power transformer, comprising a press structure configured to transfer and distribute an compression force from a holding structure to the at least one winding, an insulator structure configured to electrically insulate the holding structure from the at least one winding, and a coolant flow structure configured to guide and distribute a flow of a liquid coolant to or from different parts of the at least one winding. The press structure, the insulator structure and the coolant flow structure are formed as one integrated part comprising a polymer material. The integrated part comprises a plurality of orifices for passage of the liquid coolant from a first side facing the holding structure to a second side facing the at least one winding.Type: ApplicationFiled: April 1, 2022Publication date: August 1, 2024Inventors: Orlando Girlanda, Grzegorz Kmita, Michal Kozupa, Rongsheng Liu, Tomasz Nowak, Robert Sekula
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Patent number: 11984711Abstract: A method for producing an electrical power device from subsequently manufactured parts by an additive manufacturing technique includes determining a target spatial distribution of a physical property of the electrical power device, the physical property being an electrical property and/or a mechanical property; forming a part of the electrical power device; selecting a physical property of a subsequent part of the electrical power device corresponding to the determined spatial distribution of the physical property such as to be different from a corresponding physical property of the part; and by means of the additive manufacturing technique, forming the subsequent part such that it is at least partially in contact with the part. An electrical power device is obtainable by the method, and the electrical power device may be used as an AC or DC insulator in an HVAC or HVDC apparatus.Type: GrantFiled: March 22, 2019Date of Patent: May 14, 2024Assignee: HITACHI ENERGY LTDInventors: Pierre Elser, Lukasz Matysiak, Robert Sekula, Francesco Agostini
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Patent number: 11179768Abstract: A method of making sand casting moulds with a protective coating for a multiple process of reactive moulding of insulation components and products made by filling up a mould cavity with polymer materials, including composites, based particularly on epoxy resins or composites based on cellulose materials, the method wherein the process of infiltration of the mould structure is performed chemically by soaking through the raw mould structure with chemosetting or thermosetting material. The application of a protective layer on external surfaces of a sand casting mould is done by means of any spraying, immersion or deposition method, whereas material with anti-adhesive properties is used for the protective coating in the form of organic chemosetting, thermosetting, light-curing material or in the form of inorganic material, including metal.Type: GrantFiled: November 23, 2020Date of Patent: November 23, 2021Assignee: ABB sp. z o.oInventors: Robert Sekula, Grzegorz Kmita, Andrzej Rybak, Dariusz Bednarowski, Lukasz Matysiak, Radek Javora
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Publication number: 20210069775Abstract: A method of making sand casting moulds with a protective coating for a multiple process of reactive moulding of insulation components and products made by filling up a mould cavity with polymer materials, including composites, based particularly on epoxy resins or composites based on cellulose materials, the method wherein the process of infiltration of the mould structure is performed chemically by soaking through the raw mould structure with chemosetting or thermosetting material. The application of a protective layer on external surfaces of a sand casting mould is done by means of any spraying, immersion or deposition method, whereas material with anti-adhesive properties is used for the protective coating in the form of organic chemosetting, thermosetting, light-curing material or in the form of inorganic material, including metal.Type: ApplicationFiled: November 23, 2020Publication date: March 11, 2021Inventors: Robert Sekula, Grzegorz Kmita, Andrzej Rybak, Dariusz Bednarowski, Lukasz Matysiak, Radek Javora
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Patent number: 10937572Abstract: A method for forming an article of manufacture using additive manufacturing, includes: a processor executing program instructions to: (a) rotate an object continuously about a horizontal axis using a first rotational stage, wherein the object is partially submerged in a bath of energy curable liquid formulation during the rotation; (b) control a rate of rotation of the object to achieve a desired radial thickness of a sub layer of uncured liquid formulation at a desired rotational location on the object; (c) direct an energy source to provide an energy dose onto the object at a desired rotational location, wherein the energy dose is configured to cure and solidify the sub layer; and repeat (a), (b) and (c) until a desired radial thickness of a cured liquid formulation layer is a achieved.Type: GrantFiled: April 6, 2018Date of Patent: March 2, 2021Assignee: ABB Power Grids Switzerland AGInventors: Elio Alberto Perigo, Kathryn F. Murphy, Cherif Ghoul, Jonah Kadoko, Matthew Hetrich, Nikolaus Zant, Krzysztof Kasza, Lukasz Matysiak, Robert Sekula, Lukasz Malinowski, Jens Rocks
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Publication number: 20210050716Abstract: A method for producing an electrical power device from subsequently manufactured parts by an additive manufacturing technique includes determining a target spatial distribution of a physical property of the electrical power device, the physical property being an electrical property and/or a mechanical property; forming a part of the electrical power device; selecting a physical property of a subsequent part of the electrical power device corresponding to the determined spatial distribution of the physical property such as to be different from a corresponding physical property of the part; and by means of the additive manufacturing technique, forming the subsequent part such that it is at least partially in contact with the part. An electrical power device is obtainable by the method, and the electrical power device may be used as an AC or DC insulator in an HVAC or HVDC apparatus.Type: ApplicationFiled: March 22, 2019Publication date: February 18, 2021Inventors: Pierre Elser, Lukasz Matysiak, Robert Sekula, Francesco Agostini
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Publication number: 20190311822Abstract: A method for forming an article of manufacture using additive manufacturing, includes: a processor executing program instructions to: (a) rotate an object continuously about a horizontal axis using a first rotational stage, wherein the object is partially submerged in a bath of energy curable liquid formulation during the rotation; (b) control a rate of rotation of the object to achieve a desired radial thickness of a sub layer of uncured liquid formulation at a desired rotational location on the object; (c) direct an energy source to provide an energy dose onto the object at a desired rotational location, wherein the energy dose is configured to cure and solidify the sub layer; and repeat (a), (b) and (c) until a desired radial thickness of a cured liquid formulation layer is a achieved.Type: ApplicationFiled: April 6, 2018Publication date: October 10, 2019Inventors: Elio Alberto Perigo, Kathryn F. Murphy, Cherif Ghoul, Jonah Kadoko, Matthew Hetrich, Nikolaus Zant, Krzysztof Kasza, Lukasz Matysiak, Robert Sekula, Lukasz Malinowski, Jens Rocks
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Patent number: 8437118Abstract: The subject of the invention is an electric power switchgear, an insulating radiator, and a method for installing the radiator in an electric power switchgear, and in particular in a medium or high voltage switchgear. The electric power switchgear comprising working elements placed in the housing and connected with busbars and branches, and cooled with air, is characterized in that it contains at least one insulating radiator made of thermoplastic material of increased thermal conductivity ??2 W/mK, which is placed in the electric field of the switchgear and which is connected by a non-permanent fastening to at least one busbar or/and at least one branch. The insulating radiator designed for the switchgear is an injection molding including a base plate to whose top face a system of heat evacuating elements of identical or diverse shape is attached, and to its side surfaces elastic assembly catches are fixed.Type: GrantFiled: July 8, 2010Date of Patent: May 7, 2013Assignee: ABB Research LtdInventors: Krzysztof Kasza, Lukasz Malinowski, Robert Sekula
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Publication number: 20120106033Abstract: The subject of the invention is an electric power switchgear, an insulating radiator, and a method for installing the radiator in an electric power switchgear, and in particular in a medium or high voltage switchgear. The electric power switchgear comprising working elements placed in the housing and connected with busbars and branches, and cooled with air, is characterised in that it contains at least one insulating radiator made of thermoplastic material of increased thermal conductivity ??2W/mK, which is placed in the electric field of the switchgear and which is connected by a non-permanent fastening to at least one busbar or/and at least one branch. The insulating radiator designed for the switchgear is an injection moulding including a base plate to whose top face a system of heat evacuating elements of identical or diverse shape is attached, and to its side surfaces elastic assembly catches are fixed.Type: ApplicationFiled: July 8, 2010Publication date: May 3, 2012Inventors: Krzysztof Kasza, Lukasz Malinowski, Robert Sekula