Patents Assigned to Electric Power Research Institute, Inc.
  • Patent number: 11225808
    Abstract: An emergency restoration system is disclosed. The emergency restoration system including a base and a tower pivotally connected to the base. The tower including at least one tower section and at least one insulated tower section pivotally connected to the at least one tower section, the insulated tower section including at least one insulator pivotally connected thereto.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 18, 2022
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Jean-Pierre Henri Marais
  • Patent number: 11204303
    Abstract: A non-transitory computer readable medium with instructions stored thereon, the instructions executable by one or more processors for calculating base swirl in a gas turbine; and calculating relative swirl in the gas turbine. Also, a method for gas turbine maintenance, comprising identifying a combustor in need of repair or replacement within a gas turbine; and repairing or replacing the combustor; wherein said identifying comprises calculating base swirl of the gas turbine and calculating relative swirl of the gas turbine in order to associate a gas path from a thermocouple to the combustor in need of repair or replacement.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: December 21, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Leonard Charles Angello, Benjamin Emerson, Timothy Charles Lieuwen, David Robert Noble
  • Patent number: 11183048
    Abstract: A method of identifying a ballistic impact on a power transmission asset is disclosed. The method includes the steps of deploying a sensor assembly at the power transmission asset; using the sensor assembly to receive and process data at the power transmission asset; using an algorithm to compare the processed data to known data and determine if a ballistic impact has occurred on the power transmission asset; and triggering an alarm if a ballistic impact has occurred and dispatching personnel to the power transmission asset.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: November 23, 2021
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Andrew John Phillips, James Wu, Drew Benton McGuire, J. Mark Major, Mark C. Webb
  • Patent number: 11168006
    Abstract: The present invention is directed to a ligated metal-organic framework (MOF) for use in removing both anionic and cationic species from a liquid or liquid stream. The present invention also provides methods for placing the MOF on a substrate to form a MOF-containing product that can be used in the removal of certain species from a given fluid. The MOF may be a Zr-based MOF, such as NU-1000, for removal of certain anions, such as oxy-anions, or having an attached thiosulfonyl-thiol (—SO2—S—R2—SH, where R2 is an alkyl group) ligand for complexation with certain cationic species in addition to the anions. The substrate may be any substrate to which a given MOF may be attached, including inert polypropylene polymer resin beads, a macroscopic fabric such as a mesh material or mesh filter, and a molecular fabric.
    Type: Grant
    Filed: August 25, 2019
    Date of Patent: November 9, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Paul L. Frattini, Keith Paul Fruzzetti
  • Patent number: 11136660
    Abstract: The present invention provides a method for manufacturing a finished metal object or product having a corrosion resistant layer integral to or within a top portion of at least one of its surfaces that would be exposed to a corrosive environment. In one embodiment, the method for manufacturing is directed to a finished metal tubing product having a corrosion resistant layer within its inside surface that is exposed to a fluid and wherein the corrosion resistant layer is a zinc-metal oxide layer, such as a zinc-chromium oxide layer, or a zinc-mixed metal oxide layer. In addition to methods of manufacturing, the present invention provides finished metal objects or products having a corrosion resistant layer integral to or within a top portion of at least one surfaces that would be exposed to a corrosive environment.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 5, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: John Morrison Riddle, Carola Annemarie Gregorich, Daniel M. Wells
  • Patent number: 11022583
    Abstract: The invention comprises methods for fabricating and using a plurality of sensors on a substrate surface, such as ultrasonic sensor probes. The methods for fabricating sensors directly on the substrate surface includes the use of a template to dispose sensor material in an array and form a first layer on the substrate surface and a second template to dispose sensor electrode material in a corresponding array to form a second layer on top of the first layer. The invention provides a sensor housing that electrically connects the sensors and a computing device. The sensor housing may comprise a flexible circuit having a plurality of sensor electrode contact points corresponding to each of the sensors, at least one spring plate, a force distribution plate, and a plurality of cable wires attached to the flexible circuit and corresponding to each of sensor electrode contact points.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 1, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Luke Justin Breon
  • Patent number: 10994361
    Abstract: A weld with a stepped configuration is provided. The stepped configuration may be machined from a substrate to form a weld preparation which may accommodate a stepped weld. The weld with a stepped configuration and a controlled procedure exhibits improved service life and improved damage tolerance. A welded joint with a stepped configuration, a joined component with a stepped configuration, and method of welding a stepped configuration are also provided.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 4, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: John Albert Siefert, Jonathan David Parker
  • Patent number: 10991479
    Abstract: A cable for transmitting electricity may include a core including a first conductive material, a core shield surrounding the core, an insulation layer surrounding the core shield, the insulation layer comprising a material providing electrical insulating properties, an insulation shield surrounding the insulation layer; and at least one of the following at least partially surrounding the insulation shield: (a) a bedding layer including a first semi-conductive material, (b) a tape layer including a metallic tape intercalated with an insulating tape, and (c) a protection layer.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 27, 2021
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Tiebin Zhao, Jay A. Williams, Richard W. Allen, Jr., Frank Frentzas, Ronald J. Knapwurst, Mohammad Anwar Pasha, Mark Rogers Smith
  • Patent number: 10811151
    Abstract: A method of inspecting a structure for cracks is disclosed. The method includes the steps of moving an inspection vehicle along a pre-determined path through an area to be inspected, the inspection vehicle having a camera apparatus configured to scan the area to be inspected; using the camera apparatus to scan the area to be inspected at a pre-determined distance per second, thereby capturing scan data for analysis; and analyzing the scan data to classify cracks in the structure.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 20, 2020
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventor: Thomas Waite
  • Patent number: 10605122
    Abstract: An in-situ incremental reheating system configured to increase steam temperature and thermodynamic efficiencies of a steam turbine is disclosed. The system includes a pump; a radiant heater; piping inter-connecting the pump, radiant heater and steam turbine to create a flow circuit; and a heat transfer material configured to flow through the flow circuit and transfer heat directly to steam used in the steam turbine. The pump moves the heat transfer material through the flow circuit and the radiant heater regenerates the heat transfer material after the heat transfer material transfers heat to the steam.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: March 31, 2020
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Scott Alexander Hume, David Thimsen
  • Patent number: 10501181
    Abstract: A sensor-enabled aerial vehicle carries spatial electric and magnetic field detection sensors and a processing system that employs algorithmic methods to process sensor data. The sensors effectively detect electric and magnetic fields that emanate from energized objects, and the algorithmic methodology analyzes the sensor data to distinguish whether the energized object is unintentionally energized. The aerial propulsion system is enclosed within two electrically conducting hemispheres that are electrically insulated from each other. Alternatively, the hemispheres may be suspended below the aerial vehicle. The hemispheres function as a large area electric-field collection surface, wherein a small alternating current (AC) developed between the two hemispheres is proportional to the collected AC electric fields.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: December 10, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Douglas Stewart Dorr, John Francis Jansen, Reid Leonard Kress, Doni Joe Nastasi
  • Patent number: 10488384
    Abstract: A system and method for evaluating power transformers is disclosed. The method includes the steps of acquiring data representing one or more parameters of a power transformer, using rules to derive one or more broad physical conditions of the power transformer from the acquired data, and using the broad physical conditions as inputs to compute a plurality of indices. Each index represents a category of failure mechanisms of the power transformer. The method further includes the steps of using the plurality of indices to determine a corrective action and performing the corrective action on the power transformer.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 26, 2019
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Bhavin N. Desai, Timothy Raymond
  • Patent number: 10473809
    Abstract: An apparatus and method for identifying physical security risks to power transmission structures and other associated assets of a power transmission system is disclosed. The apparatus includes a sensor having a sensor assembly; and a floating electrode electrically connected to the sensor and positioned adjacent to the asset being monitored. The floating electrode assumes a space potential created around the asset and provides a voltage signal to the sensor indicative of a voltage of the space potential. When an object approaches the asset, the space potential is impacted and the voltage signal changes to indicate the presence of the object.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: November 12, 2019
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventor: Andrew John Phillips
  • Patent number: 10466294
    Abstract: A sensor to monitor health of surge arresters such as metal oxide arresters is disclosed. The sensor includes a housing; a sensor assembly contained in the housing, the sensor assembly including an electronics board to receive, transmit, process, and store signals; and a voltage measurement strap extending around a periphery of the housing, the voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: November 5, 2019
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Andrew John Phillips, Christiaan Engelbrecht, Robert Carlton Lynch, J. Mark Major
  • Patent number: 10391473
    Abstract: The invention is directed to a polymer-protected sorbent that is at least partially covered by, or in contact with, a polymer that acts to protect or shield the sorbent from the surrounding environment, such as a liquid or gas stream within which the sorbent is being used. The sorbent is a sorbent material made of sorbent particles and can be used to remove certain chemical species, such as trace level toxic species, from a given liquid or gas, such as a liquid or gas stream in an industrial process, such as wet flue gas desulfurization process or a wastewater treatment process.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 27, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ramsay Chang, Joseph A. Swisher, Timothy G. Ebner, Kevin M. Fisher
  • Patent number: 10362000
    Abstract: A method for providing a virtual Wi-Fi network with secure tunnel provisioning is disclosed. The method provides a reliable, persistent connection between wireless communications enabled devices located at a user's premises and a service provider, and includes the steps of using a software code running on a computing device to pass instructions including a remote server address to an Application Programming Interface (API) running on a wireless router connected to the computing device through a Local Area Network (LAN); using the wireless router to establish a secure communication session with the remote server through a Wide Area Network (WAN); receiving at the wireless router through the WAN parameters required to set up a wireless Virtual Local Area Network (VLAN); and using the router, establishing a wireless VLAN at the user's premises and connecting the wireless VLAN to the remote server through the WAN using a secure tunnel connection.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 23, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Timothy Godfrey
  • Patent number: 10243332
    Abstract: A method of replacing pipe-type power cables is disclosed. The method includes the steps of using a pipe cutting rod to burst existing pipe; using an expander to expand soil surrounding the existing pipe to create a path for a new conduit or pipe; pulling the new conduit or pipe into the path created by the expander; and pulling new cables into the conduit or pipe.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: March 26, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Tiebin Zhao, Jay A. Williams
  • Patent number: 10217533
    Abstract: In general, the present invention is directed to novel nuclear fuel rod claddings that have better performance characteristics compared to current claddings, particularly during a severe accident, such as a loss of coolant accident. The present invention provides a duplex cladding having two layers, an inner Mo or Mo-alloy layer and a protective layer disposed on the outside of the Mo or Mo-alloy layer. Optionally, the Mo or Mo-alloy layer may have a coating disposed on its inner surface to provide additional capability with the fuel pellets, thereby creating a triplex cladding.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: February 26, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Bo-Ching Cheng
  • Patent number: 10209293
    Abstract: A sensor to monitor health of surge arresters such as metal oxide arresters is disclosed. The sensor including a housing; a sensor assembly contained in the housing, and a voltage measurement strap extending around a periphery of the housing. The voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field. The sensor assembly including: an electronics board to receive, transmit, process, and store signals; a Rogowski coil electrically connected to the electronics board to measure surge currents diverted by the surge arrestor; and a current transformer electrically connected to the electronics board to measure leakage current.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 19, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Andrew John Phillips, Christiaan Engelbrecht, Robert Carlton Lynch, J. Mark Major
  • Patent number: 10073131
    Abstract: An apparatus for evaluating an electrical insulator includes: a frame having a base and a pair of spaced-apart resilient arms each having a distal end; and a flexible probe disposed between the arms, the flexible probe being generally U-shaped and having a pair of distal ends, each distal end of the probe being connected to a respective distal end of one of the arms.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 11, 2018
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Andrew John Phillips, J. Mark Major, Robert Carlton Lynch, Lester Ray Harrell