Patents by Inventor John J. Shea

John J. Shea 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).

  • Publication number: 20210203150
    Abstract: Methods and systems for suppressing arc formation in branch breakers provide a load center that can monitor a branch breaker for indications of arc formation. The load center may include a main breaker that can immediately cut current to the upon receiving an indication of an arc forming in the branch breaker. The indication may be provided by a sensor circuit that sends a trigger signal to the main breaker when arc formation is detected within the branch breaker. The main breaker checks that the trigger signal indicates arc formation, then cuts current to suppress the arc. The main breaker then waits a short period for the branch breaker to clear before restoring current. The wait period is sufficiently short such that devices receiving power from the load center are not adversely affected. To improve cutoff and restoration response times, the main breaker employs a solid-state trip switch.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Applicant: Schneider Electric USA, Inc.
    Inventors: John J. SHEA, Julius M. LIPTAK
  • Patent number: 10957504
    Abstract: An arc chute includes a pair of opposing side walls and a non-magnetic body. The side walls are formed of an electrically insulating material. The non-magnetic body includes an open area and a plurality of slots through which to facilitate gas flow. The arc chute also includes a back wall arranged on a back side of the non-magnetic body and including at least one first insulator and at least one magnet. The at least one first insulator is arranged between the at least one magnet and the open area and configured to electrically isolate the magnet from the non-magnetic body. The magnet is configured to generate a magnetic field to redirect an arc in the open area toward one of the side walls.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: March 23, 2021
    Assignee: Schneider Electric USA, Inc.
    Inventor: John J. Shea
  • Patent number: 9570900
    Abstract: A low voltage arc flash switch includes a sealed housing and gas insulation within the sealed housing. A plurality of conductors include a number of gaps therebetween within the sealed housing. A triggering mechanism is structured to cause a breakdown of the number of gaps.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: February 14, 2017
    Assignee: EATON CORPORATION
    Inventors: John J. Shea, Jason B. Carrodus, Mark A. Juds, Christian Ruempler
  • Patent number: 9570901
    Abstract: An electronic circuit includes a number of sensors structured to detect an arc flash from an uncontrolled arcing fault, and a trigger circuit, responsive to the detected arc flash, structured to trigger a triggering mechanism and cause a breakdown of a number of gaps within a low voltage arc flash switch.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: February 14, 2017
    Assignee: EATON CORPORATION
    Inventors: John J. Shea, Mark A. Juds, Christian Ruempler
  • Patent number: 9410860
    Abstract: A washer assembly is for use with a fastener. The washer assembly includes a first conductive portion, a second conductive portion, and an insulating portion disposed between the first conductive portion and the second conductive portion. The first conductive portion, the second conductive portion, and the insulating portion form a variable capacitor having a capacitance based on an amount of force applied thereto by the fastener. A wireless transponder unit includes a control unit electrically connected to the variable capacitor and an antenna electrically connected to the control unit. The control unit is configured to sense the capacitance of the variable capacitor, to generate information representing the capacitance, and to output the information to a wireless reader unit via the antenna.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: August 9, 2016
    Assignee: EATON CORPORATION
    Inventor: John J. Shea
  • Publication number: 20150236495
    Abstract: A low voltage arc flash switch includes a sealed housing and gas insulation within the sealed housing. A plurality of conductors include a number of gaps therebetween within the sealed housing. A triggering mechanism is structured to cause a breakdown of the number of gaps.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 20, 2015
    Applicant: EATON CORPORATION
    Inventors: JOHN J. SHEA, JASON B. CARRODUS, MARK A. JUDS, CHRISTIAN RUEMPLER
  • Publication number: 20150236496
    Abstract: An electronic circuit includes a number of sensors structured to detect an arc flash from an uncontrolled arcing fault, and a trigger circuit, responsive to the detected arc flash, structured to trigger a triggering mechanism and cause a breakdown of a number of gaps within a low voltage arc flash switch.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 20, 2015
    Applicant: EATON CORPORATION
    Inventors: JOHN J. SHEA, MARK A. JUDS, CHRISTIAN RUEMPLER
  • Patent number: 9057752
    Abstract: A power circuit configured to generate and distribute DC electrical power, the power circuit includes a photovoltaic (PV) system that includes an array of PV modules electrically coupled to a combiner box, and an inverter positioned to receive DC electrical power from the array of PV modules and output AC electrical power. The PV system also includes a signal generator coupled to a first portion of the PV system, and a signal detector coupled to a second portion of the PV system, the signal detector configured to detect secondary signals generated at a loose connection of an electrical joint in the PV system, wherein the secondary signals result from a signal generated by the signal generator.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 16, 2015
    Assignee: Eaton Corporation
    Inventors: Charles John Luebke, Xin Zhou, John J. Shea, Birger Pahl, B. Thomas Pier
  • Patent number: 9013189
    Abstract: An electrical joint monitoring device including a mounting assembly and a wireless transponder unit. The mounting assembly includes a first conductive contact structured to electrically connect to a first conductive member of an electrical joint and a second conductive contact structured to electrically connect to a second conductive member of the electrical joint. The wireless transponder unit includes a control unit electrically connected to the first and second conductive contacts and an antenna electrically connected to the control unit. The wireless transponder unit is configured to sense a voltage difference between the first and second conductive contacts, to generate information based on the voltage difference, and to output the information to a wireless reader unit via the antenna.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Eaton Corporation
    Inventor: John J. Shea
  • Patent number: 9001499
    Abstract: An electrical switching apparatus includes a plurality of poles, each of the poles including a terminal. The terminal of a first one of the poles is proximate the terminal of a second one of the poles. A jumper is electrically connected between the terminal of the first one of the poles and the terminal of the second one of the poles. The jumper includes a plurality of heat transfer members, each of the heat transfer members being separated from others of the heat transfer members.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: April 7, 2015
    Assignee: Eaton Corporation
    Inventors: Kenneth D. Kolberg, Thomas M. Whalen, John J. Shea, Percy J. Lipsey
  • Patent number: 8861144
    Abstract: A triggered arc flash arrester includes an envelope structured to operate at: a pressure less than about 1.33 Pa; or a pressure greater than 0.10857 MPa; a plurality of conductors partially disposed within the envelope; a number of gaps disposed between the plurality of conductors within the envelope; and a shorting structure selected from the group consisting of a triggered gap and a fuse. The shorting structure is operatively associated with the number of gaps. The shorting structure is structured to electrically short the plurality of conductors either together or to ground, in order to create an arc within the envelope which is electrically in parallel to an arc fault causing the arc fault internal to switchgear to be extinguished.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: October 14, 2014
    Assignee: Eaton Corporation
    Inventors: John J. Shea, Robert Kirkland Smith, Benjamin A. Rosenkrans, Louis G. Campbell
  • Patent number: 8854066
    Abstract: A method detects a glowing contact in a power circuit. The method applies at least two different resistance values across the power circuit and responsively senses at least two voltages across the power circuit. Each of the at least two voltages correspond to one of the at least two different resistance values. Then, the method determines if a number of changes in the sensed at least two voltages with respect to a number of changes in the at least two different resistance values is linear within a predetermined range or if a change in two of the sensed at least two voltages does not increase with a decrease in two of the at least two different resistance values and, otherwise, responsively generates at least one of a trip signal and an alarm signal corresponding to detecting the glowing contact in the power circuit.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 7, 2014
    Assignee: Eaton Corporation
    Inventor: John J. Shea
  • Publication number: 20140125319
    Abstract: An electrical joint monitoring device including a mounting assembly and a wireless transponder unit. The mounting assembly includes a first conductive contact structured to electrically connect to a first conductive member of an electrical joint and a second conductive contact structured to electrically connect to a second conductive member of the electrical joint. The wireless transponder unit includes a control unit electrically connected to the first and second conductive contacts and an antenna electrically connected to the control unit. The wireless transponder unit is configured to sense a voltage difference between the first and second conductive contacts, to generate information based on the voltage difference, and to output the information to a wireless reader unit via the antenna.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: Eaton Corporation
    Inventor: JOHN J. SHEA
  • Publication number: 20140129158
    Abstract: A washer assembly is for use with a fastener. The washer assembly includes a first conductive portion, a second conductive portion, and an insulating portion disposed between the first conductive portion and the second conductive portion. The first conductive portion, the second conductive portion, and the insulating portion form a variable capacitor having a capacitance based on an amount of force applied thereto by the fastener. A wireless transponder unit includes a control unit electrically connected to the variable capacitor and an antenna electrically connected to the control unit. The control unit is configured to sense the capacitance of the variable capacitor, to generate information representing the capacitance, and to output the information to a wireless reader unit via the antenna.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: EATON CORPORATION
    Inventor: JOHN J. SHEA
  • Publication number: 20140070833
    Abstract: A power circuit configured to generate and distribute DC electrical power, the power circuit includes a photovoltaic (PV) system that includes an array of PV modules electrically coupled to a combiner box, and an inverter positioned to receive DC electrical power from the array of PV modules and output AC electrical power. The PV system also includes a signal generator coupled to a first portion of the PV system, and a signal detector coupled to a second portion of the PV system, the signal detector configured to detect secondary signals generated at a loose connection of an electrical joint in the PV system, wherein the secondary signals result from a signal generated by the signal generator.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Inventors: Charles John Luebke, Xin Zhou, John J. Shea, Birger Pahl, B. Thomas Pier
  • Publication number: 20130265065
    Abstract: A method detects a glowing contact in a power circuit. The method applies at least two different resistance values across the power circuit and responsively senses at least two voltages across the power circuit. Each of the at least two voltages correspond to one of the at least two different resistance values. Then, the method determines if a number of changes in the sensed at least two voltages with respect to a number of changes in the at least two different resistance values is linear within a predetermined range or if a change in two of the sensed at least two voltages does not increase with a decrease in two of the at least two different resistance values and, otherwise, responsively generates at least one of a trip signal and an alarm signal corresponding to detecting the glowing contact in the power circuit.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 10, 2013
    Inventor: JOHN J. SHEA
  • Publication number: 20130213780
    Abstract: An electrical switching apparatus includes a plurality of poles, each of the poles including a terminal. The terminal of a first one of the poles is proximate the terminal of a second one of the poles. A jumper is electrically connected between the terminal of the first one of the poles and the terminal of the second one of the poles. The jumper includes a plurality of heat transfer members, each of the heat transfer members being separated from others of the heat transfer members.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 22, 2013
    Inventors: KENNETH D. KOLBERG, Thomas M. Whalen, John J. Shea, Percy J. Lipsey
  • Patent number: 8492672
    Abstract: An arc flash arrester includes a fixed contact; a movable contact; an actuator mechanism structured to close the movable and fixed contacts; and insulation disposed between the fixed and movable contacts in an open position of the arc flash arrester. The insulation is selected from the group consisting of liquid insulation; SF6; a gas, other than SF6 or air, at a pressure of at least about one atmospheric pressure; and solid insulation.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 23, 2013
    Assignee: Eaton Corporation
    Inventor: John J. Shea
  • Patent number: 8471657
    Abstract: An electrical switching apparatus includes separable contacts, an operating mechanism structured to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes a trip latch, and an arc chamber operatively associated with the separable contacts. The arc chamber includes a plurality of arc plates and a barrier disposed between the arc plates and the trip latch. The barrier has an opening therein. A trip member is disposed in or about the opening of the barrier of the arc chamber. During interruption of current flowing through the separable contacts, pressure arising from an arc in the arc chamber pushes the trip member away from the barrier of the arc chamber to engage the trip latch and cause the trip mechanism to trip open the separable contacts.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: June 25, 2013
    Assignee: Eaton Corporation
    Inventors: John J. Shea, Brian J. Schaltenbrand, Mark A. Janusek
  • Publication number: 20130140275
    Abstract: An electrical switching apparatus includes separable contacts, an operating mechanism structured to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes a trip latch, and an arc chamber operatively associated with the separable contacts. The arc chamber includes a plurality of arc plates and a barrier disposed between the arc plates and the trip latch. The barrier has an opening therein. A trip member is disposed in or about the opening of the barrier of the arc chamber. During interruption of current flowing through the separable contacts, pressure arising from an arc in the arc chamber pushes the trip member away from the barrier of the arc chamber to engage the trip latch and cause the trip mechanism to trip open the separable contacts.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Inventors: John J. SHEA, Brian J. SCHALTENBRAND, Mark A. JANUSEK