Patents by Inventor Emil Kalina

Emil Kalina 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: 11909181
    Abstract: A compartment for a medium voltage air or gas insulated switchgear includes: a plurality of walls. At least one wall of the plurality of walls is an external wall. The external wall is a first metal sheet. The external wall includes a plurality of conductive elements. A first surface of the first metal sheet is an outer surface for thermal contact with ambient air. A second surface of the first metal sheet is an inner surface for thermal contact with air or gas within the compartment. The plurality of conductive elements extend from the second surface of the first metal sheet into the compartment.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: February 20, 2024
    Assignee: ABB Schweiz AG
    Inventors: David Rumler, Emil Kalina
  • Patent number: 11901708
    Abstract: A cooling system for an air insulated switchgear compartment includes: a housing; a fan; and a flap. The fan is mounted to the housing. The flap is mounted to the housing. The flap is positioned adjacent to the fan such that a rotational axis of the fan does not extend through the flap.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 13, 2024
    Assignee: ABB Schweiz AG
    Inventors: Jiri Horak, Emil Kalina
  • Publication number: 20220045486
    Abstract: A cooling system for an air insulated switchgear compartment includes: a housing; a fan; and a flap. The fan is mounted to the housing. The flap is mounted to the housing. The flap is positioned adjacent to the fan such that a rotational axis of the fan does not extend through the flap.
    Type: Application
    Filed: August 5, 2021
    Publication date: February 10, 2022
    Inventors: Jiri Horak, Emil Kalina
  • Publication number: 20210234345
    Abstract: A compartment for a medium voltage air or gas insulated switchgear includes: a plurality of walls. At least one wall of the plurality of walls is an external wall. The external wall is a first metal sheet. The external wall includes a plurality of conductive elements. A first surface of the first metal sheet is an outer surface for thermal contact with ambient air. A second surface of the first metal sheet is an inner surface for thermal contact with air or gas within the compartment. The plurality of conductive elements extend from the second surface of the first metal sheet into the compartment.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 29, 2021
    Inventors: David RUMLER, Emil KALINA
  • Patent number: 10320184
    Abstract: A method and apparatus for earth fault in power high and/or medium voltage system may enhance a protection system for special technical task, which is to measure residual current, the invention is, that for earth fault protection in power system or a part of power system, for example, but not limited to, cable connectors, wherein residual current is determined indirectly by the calculation from the phase current values, obtained from the output signals of Rogowski-coil based current sensors.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 11, 2019
    Assignee: ABB SCHWEIZ AG
    Inventors: Emil Kalina, Vaclav Prokop
  • Publication number: 20160134101
    Abstract: A method and apparatus for earth fault in power high and/or medium voltage system may enhance a protection system for special technical task, which is to measure residual current, the invention is, that for earth fault protection in power system or a part of power system, for example, but not limited to, cable connectors, wherein residual current is determined indirectly by the calculation from the phase current values, obtained from the output signals of Rogowski-coil based current sensors.
    Type: Application
    Filed: June 5, 2014
    Publication date: May 12, 2016
    Inventors: Emil Kalina, Vaclav Prokop