Patents by Inventor Marek Michalik

Marek Michalik 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).

  • Turbine hub retainer
    Patent number: 9540949
    Abstract: A retainer for a gas turbine engine includes a center body, a plurality of struts, and a ring. The plurality of struts are connected to and extend outward from the center body. The ring is connected to the plurality of struts and is positioned aft of the center body with respect to a direction of airflow through the gas turbine engine.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: January 10, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Gordon F. Jewess, Navindaran Sirinivasan, Marek Michalik, James J. McLaughlin, James C. Napier, Krzysztof Kowiel, Agata Miaskiewicz
  • TURBINE HUB RETAINER
    Publication number: 20140165590
    Abstract: A retainer for a gas turbine engine includes a center body, a plurality of struts, and a ring. The plurality of struts are connected to and extend outward from the center body. The ring is connected to the plurality of struts and is positioned aft of the center body with respect to a direction of airflow through the gas turbine engine.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Gordon F. Jewess, Navindaran Sirinivasan, Marek Michalik, James J. McLaughlin, James C. Napier, Krzysztof Kowiel, Agata Miaskiewicz
  • METHOD OF HIGH IMPEDANCE GROUNDFAULT DETECTION FOR DIFFERENTIAL PROTECTION OF OVERHEAD TRANSMISSION LINES
    Publication number: 20120330582
    Abstract: The invention concerns a method of impedance groundfault detection for differential protection of an overhead transmission line in a three-phase high voltage electric power transmission system which comprises many lines (1,12) and many protection relays (2,4), which comprises the following steps: 1) in prefault condition: —measuring the differential current (I); —measuring the phase voltage (II) at the relay location; —measuring the phase current (III) the relay location; —calculating the differential admittance (IV), with the following equation: (formula (V)). With (VI): the positive sequence impedance of the line-protected.
    Type: Application
    Filed: September 30, 2009
    Publication date: December 27, 2012
    Applicants: Schneider Electric Energy UK Ltd., Alstom Technology Ltd.
    Inventors: Andrzej Wiszniewski, Miroslaw Lukowicz, Marek Michalik, Andrzej Klimek