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).

  • Patent number: 12165795
    Abstract: 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: Grant
    Filed: April 1, 2022
    Date of Patent: December 10, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Orlando Girlanda, Grzegorz Kmita, Michal Kozupa, Rongsheng Liu, Tomasz Nowak, Robert Sekula
  • Publication number: 20240258011
    Abstract: 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: Application
    Filed: April 1, 2022
    Publication date: August 1, 2024
    Inventors: Orlando Girlanda, Grzegorz Kmita, Michal Kozupa, Rongsheng Liu, Tomasz Nowak, Robert Sekula
  • Patent number: 11984711
    Abstract: 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: Grant
    Filed: March 22, 2019
    Date of Patent: May 14, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Pierre Elser, Lukasz Matysiak, Robert Sekula, Francesco Agostini
  • Patent number: 11179768
    Abstract: 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: Grant
    Filed: November 23, 2020
    Date of Patent: November 23, 2021
    Assignee: ABB sp. z o.o
    Inventors: Robert Sekula, Grzegorz Kmita, Andrzej Rybak, Dariusz Bednarowski, Lukasz Matysiak, Radek Javora
  • Publication number: 20210069775
    Abstract: 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: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Inventors: Robert Sekula, Grzegorz Kmita, Andrzej Rybak, Dariusz Bednarowski, Lukasz Matysiak, Radek Javora
  • Patent number: 10937572
    Abstract: 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: Grant
    Filed: April 6, 2018
    Date of Patent: March 2, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Elio Alberto Perigo, Kathryn F. Murphy, Cherif Ghoul, Jonah Kadoko, Matthew Hetrich, Nikolaus Zant, Krzysztof Kasza, Lukasz Matysiak, Robert Sekula, Lukasz Malinowski, Jens Rocks
  • Publication number: 20210050716
    Abstract: 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: Application
    Filed: March 22, 2019
    Publication date: February 18, 2021
    Inventors: Pierre Elser, Lukasz Matysiak, Robert Sekula, Francesco Agostini
  • Publication number: 20190311822
    Abstract: 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: Application
    Filed: April 6, 2018
    Publication date: October 10, 2019
    Inventors: Elio Alberto Perigo, Kathryn F. Murphy, Cherif Ghoul, Jonah Kadoko, Matthew Hetrich, Nikolaus Zant, Krzysztof Kasza, Lukasz Matysiak, Robert Sekula, Lukasz Malinowski, Jens Rocks
  • Patent number: 8437118
    Abstract: 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: Grant
    Filed: July 8, 2010
    Date of Patent: May 7, 2013
    Assignee: ABB Research Ltd
    Inventors: Krzysztof Kasza, Lukasz Malinowski, Robert Sekula
  • Publication number: 20120106033
    Abstract: 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: Application
    Filed: July 8, 2010
    Publication date: May 3, 2012
    Inventors: Krzysztof Kasza, Lukasz Malinowski, Robert Sekula