Patents by Inventor Nicholas D. Kefalas

Nicholas D. Kefalas 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).

  • Engine electrical load shed control
    Patent number: 9849996
    Abstract: A method of engine electrical load shed control includes receiving an accessory load indicator corresponding to an accessory load of an engine. A request for acceleration of the engine is detected. One or more electrical buses are depowered based on the accessory load indicator exceeding a shedding threshold and detection of the request for acceleration of the engine.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: December 26, 2017
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: John H. Judge, Nicholas D. Kefalas, Mark P. Eisenhauer, Frederick L. Bourne, Robert J. Andrejczyk, Michael Patrick Wade
  • ENGINE ELECTRICAL LOAD SHED CONTROL
    Publication number: 20150225089
    Abstract: A method of engine electrical load shed control includes receiving an accessory load indicator corresponding to an accessory load of an engine. A request for acceleration of the engine is detected. One or more electrical buses are depowered based on the accessory load indicator exceeding a shedding threshold and detection of the request for acceleration of the engine.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventors: John H. Judge, Nicholas D. Kefalas, Mark P. Eisenhauer, Frederick L. Bourne, Robert J. Andrejczyk, Michael Patrick Wade
  • Test system for automatic testing of insulation resistance, capacitance and attenuation of each contact pair in a filter pin connector
    Patent number: 5241277
    Abstract: An automated test system for testing a filter pin connector (320) uses an insulation resistance tester (102) for testing the filter pin connector insulation resistance, a capacitance meter (104) for measuring the capacitance of each filter pin connector pin contact pair (10), a signal generator (100), and a radio frequency (RF) microvoltmeter for measuring the pin contact pair attenuation of test signals provided by the signal generator. A test fixture includes a pair of RF multiplexers (112, 113) and a high voltage multiplexer (115) for providing a signal path between each pin contact pair and the test equipment. A microprocessor (120) controls the test equipment and multiplexers for measuring the insulation resistance, capacitance, and signal attenuation of each pin contact pair.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: August 31, 1993
    Assignee: United Technologies Corporation
    Inventor: Nicholas D. Kefalas