Patents by Inventor Daniel White Sexton
Daniel White Sexton 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: 7043340Abstract: A protection system for a power distribution system is provided. The protection system includes a central computer, a plurality of data modules, and a data network. The data modules are each in communication with a different circuit breaker of the power distribution system. The data network communicates between the central computer and the plurality of data modules. The central computer sends an instruction to the plurality of data modules over the data network to aid in synchronization of sampling of a power condition at the plurality of data modules.Type: GrantFiled: February 25, 2003Date of Patent: May 9, 2006Assignee: General Electric CompanyInventors: Thomas F. Papallo, Indra Purkayastha, Emad Andarawis Andarawis, Ertugrul Berkcan, Scott Charles Evans, Rahul Gore, Mingxiao Jiang, Shobhana Mani, Daniel Lawrence Morrill, Eugene Joseph Orlowski, Jr., Marc Robert Pearlman, William James Premerlani, Ramakrishna Rao, Samantha Rao, Austars Raymond Schnore, Jr., Charles Scott Sealing, Daniel White Sexton, Somashekhar Basavaraj, Terry Michael Topka
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Patent number: 6999291Abstract: A method and apparatus for operating a power distribution system circuit breaker is provided. The circuit breaker includes an associated node electronics unit wherein a node electronics unit redundancy requirement is predetermined. The method includes monitoring electrical system parameters associated with the circuit breaker with the node electronics unit, communicating the electrical system parameters over a digital network to at least one central control processing unit, receiving commands and actions from the at least one central control processing unit over the digital network, determining circuit breaker actuation commands based at least partially on the received commands and actions, and operating the circuit breaker based on the circuit breaker actuation commands.Type: GrantFiled: February 25, 2003Date of Patent: February 14, 2006Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Daniel White Sexton, Austars Raymond Schnore, Jr., Ertugrul Berkcan, Changting Wang, Samantha Rao, Ramakrishna Rao, Eugene Joseph Orlowski, Jr., Somashekhar Basavaraj, Rahul Gore, Marc Robert Pearlman
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Patent number: 6892115Abstract: A method of monitoring and controlling a power distribution system is provided. The power distribution system includes a plurality of circuit breakers, a plurality of node electronic units, and wherein each associated circuit breaker is electrically coupled with each respective node electronic unit. The system also includes at least one digital network, and at least one central control processing unit (CCPU) wherein each CCPU includes a first power system global information set, and each CCPU is communicatively coupled to the plurality of node electronic units. The method includes transmitting at least one digital message from each node electronic unit to each CCPU over a respective network, determining an operational state of the power distribution system from the digital message, and transmitting at least one multicast message from each CCPU to each node electronic unit such that the circuit breakers are operable from each CCPU.Type: GrantFiled: February 25, 2003Date of Patent: May 10, 2005Assignee: General Electric CompanyInventors: Ertugrul Berkcan, Daniel White Sexton, Scott Charles Evans, Marc Robert Pearlman, Emad Andarawis Andarawis, Austars Raymond Schnore, Jr., Charles Scott Sealing, William James Premerlani, Changting Wang, Terry Michael Topka
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Publication number: 20040156360Abstract: A method of prioritizing messages on a Local Area Network comprises receiving a digitized incoming message, comparing a message signature of the incoming message with a stored priority message signature, passing non-priority messages to a standard Ethernet protocol stack for processing, storing priority messages temporarily, preventing priority messages from being processed in the standard Ethernet protocol stack, and handling priority messages using a simplified protocol stack designed to process a specific data packet type. This method may be performed by an Application Specific Integrated Circuit (ASIC) inserted between an Ethernet PHY layer and Ethernet MAC layer on a Network Interface Card of a host device. In particular, automated machinery control systems using the Ethernet protocol for networking are intended to benefit from the prioritizing method and implementation.Type: ApplicationFiled: February 6, 2003Publication date: August 12, 2004Applicant: General Electric CompanyInventors: Daniel White Sexton, John Erik Hershey, Michael James Hartman
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Patent number: 6742392Abstract: A method and apparatus for nondestructive testing a railroad rail is provided. The method includes locating at least one magnetic exciter adjacent to the rail, the at least one magnetic exciter includes an emitting end and a longitudinal axis extending perpendicularly through the emitting end, discharging the energy storage circuit through the at least one magnetic exciter such that only a magnetic pulse enters the rail at a location of the exciter, and controlling a shape of the magnetic pulse. The apparatus includes at least one magnetic exciter adjacent to a rail, a energy storage circuit electrically coupled to the at least one magnetic exciter the energy storage circuit is configured to supply a shaped current pulse to the at least one exciter, and a power source electrically coupled to the energy storage circuit.Type: GrantFiled: October 29, 2002Date of Patent: June 1, 2004Assignee: General Electric CompanyInventors: Robert Snee Gilmore, John Erik Hershey, David Michael Davenport, Daniel White Sexton
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Publication number: 20040101136Abstract: The present invention provides methods and apparatuses for implementing communications privacy on a class of two-way wireless control communications. The methods and apparatuses of the present invention are cryptographic in nature and are built on a symmetric cryptographic algorithm structure. The cryptographic algorithm structure generates keytext on a frame-by-frame basis and both directions of the communications control link are served by the same keytext frames. The methods and apparatuses of the present invention utilize a single outbound/inbound cryptographic generator, such as a shrinking generator or the like designed using six-sigma tools in order to ensure, within a predetermined probability, that the non-fixed encryption time does not cause operational problems.Type: ApplicationFiled: November 26, 2002Publication date: May 27, 2004Inventors: John Erik Hershey, Daniel White Sexton
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Publication number: 20040079157Abstract: A method and apparatus for nondestructive testing a railroad rail is provided. The method includes locating at least one magnetic exciter adjacent to the rail, the at least one magnetic exciter includes an emitting end and a longitudinal axis extending perpendicularly through the emitting end, discharging the energy storage circuit through the at least one magnetic exciter such that only a magnetic pulse enters the rail at a location of the exciter, and controlling a shape of the magnetic pulse. The apparatus includes at least one magnetic exciter adjacent to a rail, a energy storage circuit electrically coupled to the at least one magnetic exciter, the energy storage circuit is configured to supply a shaped current pulse to the at least one exciter, and a power source electrically coupled to the energy storage circuit.Type: ApplicationFiled: October 29, 2002Publication date: April 29, 2004Inventors: Robert Snee Gilmore, John Erik Hershey, David Michael Davenport, Daniel White Sexton
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Publication number: 20040024475Abstract: A method of monitoring and controlling a power distribution system is provided. The power distribution system includes a plurality of circuit breakers, a plurality of node electronic units, and wherein each associated circuit breaker is electrically coupled with each respective node electronic unit. The system also includes at least one digital network, and at least one central control processing unit (CCPU) wherein each CCPU includes a first power system global information set, and each CCPU is communicatively coupled to the plurality of node electronic units. The method includes transmitting at least one digital message from each node electronic unit to each CCPU over a respective network, determining an operational state of the power distribution system from the digital message, and transmitting at least one multicast message from each CCPU to each node electronic unit such that the circuit breakers are operable from each CCPU.Type: ApplicationFiled: February 25, 2003Publication date: February 5, 2004Applicant: General Electric CompanyInventors: Ertugrul Berkcan, Daniel White Sexton, Scott Charles Evans, Marc Robert Pearlman, Emad Andarawis Andarawis, Austars Raymond Schnore, Charles Scott Sealing, William James Premerlani, Changting Wang, Terry Michael Topka
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Publication number: 20040019410Abstract: A protection system for a power distribution system is provided. The protection system includes a central computer, a plurality of data modules, and a data network. The data modules are each in communication with a different circuit breaker of the power distribution system. The data network communicates between the central computer and the plurality of data modules. The central computer sends an instruction to the plurality of data modules over the data network to aid in synchronization of sampling of a power condition at the plurality of data modules.Type: ApplicationFiled: February 25, 2003Publication date: January 29, 2004Applicant: General Electric CompanyInventors: Thomas F. Papallo, Indra Purkayastha, Emad Andarawis Andarawis, Ertugrul Berkcan, Scott Charles Evans, Rahul Gore, Mingxiao Jiang, Shobhana Mani, Daniel Lawrence Morrill, Eugene Joseph Orlowski, Marc Robert Pearlman, William James Premerlani, Ramakrishna Rao, Samantha Rao, Austars Raymond Schnore, Charles Scott Sealing, Daniel White Sexton, Somashekhar Basavaraj, Terry Michael Topka
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Publication number: 20030222509Abstract: A method and apparatus for operating a power distribution system circuit breaker is provided. The circuit breaker includes an associated node electronics unit wherein a node electronics unit redundancy requirement is predetermined. The method includes monitoring electrical system parameters associated with the circuit breaker with the node electronics unit, communicating the electrical system parameters over a digital network to at least one central control processing unit, receiving commands and actions from the at least one central control processing unit over the digital network, determining circuit breaker actuation commands based at least partially on the received commands and actions, and operating the circuit breaker based on the circuit breaker actuation commands.Type: ApplicationFiled: February 25, 2003Publication date: December 4, 2003Applicant: General Electric CompanyInventors: Emad Andarawis Andarawis, Daniel White Sexton, Austars Raymond Schnore, Ertugrul Berkcan, Changting Wang, Samantha Rao, Ramakrishna Rao, Eugene Joseph Orlowski, Somashekhar Basavaraj, Rahul Gore, Marc Robert Pearlman
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Publication number: 20030214907Abstract: A method for communicating information bundled in digital message packets via a digital network communication system is provided. The digital network communication system a sample source and each packet includes a header and a communication payload area. The method includes sampling the source at a first sample rate, selecting at least one decimation of the samples based on at least one of a plurality of algorithmic data rates and a channel bandwidth, determining a packet rate based on a plurality of algorithmic latency requirements, and transmitting the digital message packet containing decimated data on the digital network.Type: ApplicationFiled: February 25, 2003Publication date: November 20, 2003Applicant: General Electric CompanyInventors: Ertugrul Berkcan, Daniel White Sexton, Scott Charles Evans, Marc Robert Pearlman, Emad Andarawis Andarawis, William James Premerlani
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Publication number: 20030205938Abstract: A method and system for monitoring and controlling a power distribution system is provided. The system includes a plurality of circuit breakers and a plurality of node electronic units. Each node electronic unit is mounted remotely from an associated circuit breaker that is electrically coupled with one of the node electronic units. The system also includes a first digital network, and a first central control unit. The first central control unit and the plurality of node electronic units are communicatively coupled to the first digital network. The method includes receiving digital signals from each node electronic unit at the central control unit, determining an operational state of the power distribution system from the digital signal, and transmitting digital signals to the plurality of node electronic units such that the circuit breakers are operable from the first central control unit.Type: ApplicationFiled: February 25, 2003Publication date: November 6, 2003Applicant: General Electric CompanyInventors: Emad Andarawis Andarawis, Daniel White Sexton, Scott Charles Evans, Marc Robert Pearlman, Austars Raymond Schnore, Charles Scott Sealing, William James Premerlani, Ertugrul Berkcan, Wendai Wang, Terry Michael Topka, Mingxiao Jiang
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Publication number: 20030161273Abstract: A method transmitting a message over at least one of a plurality of radio frequency (RF) channels of an RF communications network is provided. The method comprises the steps of detecting a presence of jamming pulses in the at least one of the plurality of RF channels. The characteristics of the jamming pulses in the at least one of the plurality of RF channels is determined wherein the determined characteristics define at least interstices between the jamming pulses. The message is transmitted over the at least one of the plurality of RF channels wherein the message is transmitted within the interstices of the jamming pulse determined from the step of determining characteristics of the jamming pulses.Type: ApplicationFiled: February 26, 2002Publication date: August 28, 2003Applicant: General Electric CompanyInventors: Daniel White Sexton, John Erik Hershey
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Patent number: 6433744Abstract: An antenna comprising two essentially identical electrically conducting rectangular plates lying in parallel planes and separated so that a gap is formed between the plates also includes a dielectric situated within the gap and exhibiting a relative permittivity that changes with frequency. Electrical connectors connect the plates to corresponding conductors that carry the signal to be radiated by the antenna.Type: GrantFiled: December 11, 2000Date of Patent: August 13, 2002Assignee: General Electric CompanyInventors: John Erik Hershey, Gregory Bruce Robinson, Kenneth Brakeley Welles, II, Daniel White Sexton, David Michael Davenport, Gary William Yeager
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Publication number: 20020097185Abstract: An antenna comprising two essentially identical electrically conducting rectangular plates lying in parallel planes and separated so that a gap is formed between the plates also includes a dielectric situated within the gap and exhibiting a relative permittivity that changes with frequency. Electrical connectors connect the plates to corresponding conductors that carry the signal to be radiated by the antenna.Type: ApplicationFiled: December 11, 2000Publication date: July 25, 2002Applicant: General Electric CompanyInventors: John Erik Hershey, Gregory Bruce Robinson, Kenneth Brakeley Welles, Daniel White Sexton, David Michael Davenport, Gary William Yeager
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Patent number: 5978593Abstract: A programmable logic controller computer system is provided which achieves great flexibility in communication among the components of the system. The computer system includes a host programmable logic controller coupled by a field bus to a programmable bus interface unit. The programmable bus interface unit is located at a field station which includes a main bus to which a micro field processor and a plurality of I/O modules are coupled. The micro field processor is capable of locally processing I/O data from the I/O modules without involving the host PLC. A hand-held programmer is coupled to the programmable bus interface unit to permit the user to program an I/O map into the bus interface unit. The I/O map specifies mapping among the I/O modules, the micro field processor and the host programmable logic controllers. In this manner, communication among the I/O modules, the micro field processor and the host programmable logic controller is flexibly specified and controlled.Type: GrantFiled: September 5, 1996Date of Patent: November 2, 1999Assignee: GE Fanuc Automation North America, Inc.Inventor: Daniel White Sexton