Patents by Inventor George William Roscoe
George William Roscoe 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).
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Patent number: 7929260Abstract: A method of eliminating arc flash in a motor control center is disclosed. The method includes sensing an arc flash corresponding to the motor control center. In response to sensing the arc flash, and subsequent to a delay, determining whether the arc flash continues, and in response to determining that the arc flash continues, triggering an arc crowbar.Type: GrantFiled: August 30, 2007Date of Patent: April 19, 2011Assignee: General Electric CompanyInventors: George William Roscoe, Thangavelu Asokan, Adnan Kutubuddin Bohori
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Publication number: 20110068802Abstract: A device and method to determine the presence of a ground fault that distinguishes between the capacitive portion of the currents to ground, and the resistive portion of the currents to ground by ascertaining aspects of the voltage and residual current waveforms.Type: ApplicationFiled: September 24, 2009Publication date: March 24, 2011Inventors: George William Roscoe, Thomas Frederick Papallo, JR., Cecil Rivers, JR.
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Publication number: 20100328824Abstract: An arc flash detector includes a light sensor, a light attenuating filter in communication with the light sensor, a housing disposed to support the light attenuating filter and the light sensor, and a logic circuit in communication with the light sensor. The logic circuit is disposed to receive an output of the light sensor and disposed to produce an output signal responsive to a predetermined intensity of light received by the light sensor. The light attenuating filter is disposed to reduce the intensity of light received by the light sensor. The housing is also disposed to retain the light sensor and the light attenuating filter at a fixed orientation.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Applicant: GENERAL ELECTRIC COMPANYInventor: George William Roscoe
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Patent number: 7791846Abstract: An arc flash system for a circuit breaker and a method of operation is provided. The arc flash system includes a first sensor such as a photo-detector and a second sensor that detects a circuit breaker parameter. The arc flash system is responsive to signals from the first sensor and second sensor to determine if an arc flash event is occurring to avoid nuisance tripping of the circuit breaker.Type: GrantFiled: July 30, 2008Date of Patent: September 7, 2010Assignee: General Electric CompanyInventors: George William Roscoe, Thomas Frederick Papallo, Jr.
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Publication number: 20100207728Abstract: An energy management system includes a module for an energy consuming device. The module has a module main controller including a computer processor in communication with a module computer readable storage medium containing computer executable code. When the computer executable code is executed by the computer processor, it performs a method including determining whether a demand state is a peak demand state, employing a reduced operational mode of the energy consuming device during a peak demand state, and employing a normal operational mode of the energy consuming device during a demand state other than a peak demand state. In an embodiment, the system also includes a system main controller in communication with the module.Type: ApplicationFiled: February 18, 2009Publication date: August 19, 2010Applicant: General Electric CorporationInventors: George William Roscoe, John Keith Besore, Darko Ilickovic, Thomas Frederick Papallo, Jr., Cecil Rivers, Jr., Brian Michael Schork
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Publication number: 20100211233Abstract: An energy management system manages energy consumption of managed device(s) disposed to receive energy via a meter connected to an energy supply, the energy supply. A system controller has a computer processor that instructs the managed device(s) to employ an operational mode based on the priority, the energy need, the demand state, and whether the energy consumption rate of the managed device(s) exceeds energy available from at least one of the external energy source and internal energy source.Type: ApplicationFiled: February 18, 2009Publication date: August 19, 2010Applicant: GENERAL ELECTRIC CORPORATIONInventors: George William Roscoe, Thomas Frederick Papallo, JR., Cecil Rivers, JR.
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Publication number: 20100052761Abstract: A dual power source pulse generator in power connection with a pair of electrodes having a first electrode, a second electrode and an air gap therebetween. The dual power source pulse generator includes a first pulse source producing a high voltage low current pulse across the pair of electrodes to allow dielectric breakdown, and a second pulse source electrically connected in parallel with an output of the first pulse source, and producing a low voltage high current pulse to thereby produce a current flow of high-density plasma between the same electrodes of the pair of electrodes in response to the high voltage low current pulse.Type: ApplicationFiled: September 3, 2008Publication date: March 4, 2010Applicant: General Electric CompanyInventors: George William Roscoe, John James Dougherty, Cecil Rivers, JR., Thangavelu Asokan, Adnan Kutubuddin Bohori
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Publication number: 20100026425Abstract: An arc flash system for a circuit breaker and a method of operation is provided. The arc flash system includes a first sensor such as a photo-detector and a second sensor that detects a circuit breaker parameter. The arc flash system is responsive to signals from the first sensor and second sensor to determine if an arc flash event is occurring to avoid nuisance tripping of the circuit breaker.Type: ApplicationFiled: July 30, 2008Publication date: February 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: George William Roscoe, Thomas Frederick Papallo, JR.
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Publication number: 20090308845Abstract: An arc containment device is presented. The arc containment device includes a shock shield further having a multiple apertures for escape of gas, the shock shield configured to surround an arc source. The device further comprises an inner enclosure having a multiple openings generally aligned with the multiple apertures, the inner enclosure configured to provide an electrical insulation base for the arc source. An outer enclosure disposed is provided around the inner enclosure, the outer enclosure configured to direct the gas to the environment outside the device.Type: ApplicationFiled: June 11, 2008Publication date: December 17, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Adnan Kutubuddin Bohori, Dean Arthur Robarge, Robert Joseph Caggiano, Thangavelu Asokan, George William Roscoe
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Patent number: 7580232Abstract: A system for identifying an arcing event in electrical distribution systems is provided. The system comprises a sensor configured to detect ultraviolet light and to generate a signal indicative of the arcing event propagating from the electrical distribution system. A processor coupled to the sensor and configured to analyze an ultraviolet light characteristic from the signal and generate an arc fault signal. A protective device configured to receive the arc fault signal and to mitigate the arcing event in the electrical distribution system.Type: GrantFiled: December 21, 2007Date of Patent: August 25, 2009Assignee: General Electric CompanyInventors: Robert J. Caggiano, Thangavelu Asokan, Satyanarayana Murphy Ungarala, George William Roscoe
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Publication number: 20090161272Abstract: A system for identifying an arcing event in electrical distribution systems is provided. The system comprises a sensor configured to detect ultraviolet light and to generate a signal indicative of the arcing event propagating from the electrical distribution system. A processor coupled to the sensor and configured to analyze an ultraviolet light characteristic from the signal and generate an arc fault signal. A protective device configured to receive the arc fault signal and to mitigate the arcing event in the electrical distribution system.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: General Electric CompanyInventors: Thangavelu Asokan, Robert J. Caggiano, Satyanarayana Murthy Ungarala, George William Roscoe
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Publication number: 20090134128Abstract: An electrical pulse circuit is disclosed. The electrical pulse circuit is in connection with a first pair of electrodes defining a first gap between ends thereof and a second pair of electrodes defining a second gap between ends thereof. The second gap is disposed proximate to the first gap. The circuit includes a controller, a first electrical pulse source in power connection with the first pair of electrodes, and a second electrical pulse source in power connection with the second pair of electrodes. The first electrical pulse source is productive of a high voltage low current arc across the first gap in response to the controller and the second electrical pulse source is productive of a low voltage high current arc across the second gap in response to the controller and the high voltage arc.Type: ApplicationFiled: November 27, 2007Publication date: May 28, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: George William Roscoe, Thangavelu Asokan, Adnan Kuttubudin Bohori
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Publication number: 20090134129Abstract: An ablative plasma gun subassembly is disclosed. The subassembly includes a body, a first pair and a second pair of gun electrodes having distal ends disposed within an interior of the body, and ablative material disposed proximate the distal ends of at least one of the first pair of gun electrodes and the second pair of gun electrodes.Type: ApplicationFiled: November 27, 2007Publication date: May 28, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Dean Arthur Robarge, Thangavelu Asokan, Adnan Kuttubudin Bohori, John James Dougherty, George William Roscoe
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Publication number: 20080239592Abstract: A method of eliminating arc flash in a motor control center is disclosed. The method includes sensing an arc flash corresponding to the motor control center. In response to sensing the arc flash, and subsequent to a delay, determining whether the arc flash continues, and in response to determining that the arc flash continues, triggering an arc crowbar.Type: ApplicationFiled: August 30, 2007Publication date: October 2, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: George William Roscoe, Thangavelu Asokan, Adnan Kutubuddin Bohori