Testing, Sensing, Measuring, Or Detecting A Fission Reactor Condition Patents (Class 376/245)
  • Patent number: 11367592
    Abstract: A repeating setpoint generator module selectively varies a setpoint for an output parameter according to a predetermined pattern that repeats during successive time intervals. A closed-loop module, during a first one of the time intervals, generates N closed-loop values based on N differences between (i) N values of the setpoint at N times during the first one of the time intervals and (ii) N measurements of the output parameter at the N times during the first one of the time intervals, respectively. An adjusting module, during the first one of the time intervals, generates N adjustment values based on N differences between (i) N values of the setpoint at the N times during a second one of the time intervals and (ii) N measurements of the output parameter at the N times during the second one of the time intervals, respectively.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 21, 2022
    Assignee: MKS Instruments, Inc.
    Inventors: Larry J. Fisk, II, Aaron T. Radomski, Jonathan W. Smyka
  • Patent number: 11315699
    Abstract: Disclosed are a method and apparatus for making a radioisotope and a composition of matter including the radioisotope. The radioisotope is made by exposing a material to neutrons from a portable neutron source.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 26, 2022
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: James J. Hamill, Stefan B. Siegel, Charles Russell Buchanan
  • Patent number: 11313978
    Abstract: A device for detecting a contaminant on a scaffolding pole. The device includes an outer detector for detecting a contaminant on an outer surface and an inner detector for detecting a contaminant on an inner surface. The device also includes a mechanism for transporting a scaffolding pole through the device, past the detectors. A contaminant is detected on the outer and inner surfaces of the scaffolding pole using the outer and inner detectors respectively.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 26, 2022
    Assignee: SOLETANCHE FREYSSINET S.A.S.
    Inventors: Dan Clifton-Climas, Greg Antill
  • Patent number: 11276507
    Abstract: A radionuclide generation system including a tube system configured to permit insertion and removal of irradiation targets into an instrumentation finger of a nuclear reactor, and an irradiation target drive system configured to insert the irradiation targets into the instrumentation finger and to remove the irradiation targets from the instrumentation finger. The radionuclide generation system further includes an instrumentation and control unit which is linked to an online core monitoring system and being configured to calculate optimal irradiation locations for the irradiation targets based on the actual state of the reactor as provided by the online core monitoring system.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 15, 2022
    Assignee: FRAMATOME GMBH
    Inventors: Thomas Fabian Richter, Lothar Wistuba, Leila Jaafar, Oliver Arndt, Uwe Stoll
  • Patent number: 11263776
    Abstract: An object recognition system using an ultrasonic sensor is proposed, the system including an amplifier amplifying an output of the ultrasonic sensor; an analog-to-digital converter converting an output of the amplifier into a digital signal; and a feature point extractor extracting feature points using an output of the analog-to-digital converter; and an object recognizer recognizing the object by using the feature points extracted from the feature point extractor.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: March 1, 2022
    Assignee: CESIGN CO., LTD.
    Inventor: Soo Hyoung Lee
  • Patent number: 11119057
    Abstract: A trip avoidance X-ray inspection system, typically defining a specialized system that delivers pulsed X-rays, comprises one or more pulse X-ray cameras, each comprising a known set of effects on nucleonic instrumentation; a predetermined set of such shielded X-ray sources; a predetermined set of nucleonic instrumentation operatively in communication with one or more pulse X-ray cameras; and a digital radiography detector adapted to allow, process, or otherwise create an X-ray produced image when disposed proximate predetermined set of nucleonic instrumentation. The pulse X-ray camera is adapted to be disposed at a predetermined distance from predetermined set of shielded X-ray sources.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 14, 2021
    Assignee: Oceaneering International, Inc.
    Inventor: James Reid McNab
  • Patent number: 11081243
    Abstract: A device and method for inspecting and measuring weld defects in a cylindrical wall of a cylindrical conduit. The device can include an inspection head forming a probe having a proximal end and a distal end along its longitudinal axis, and of which a first side called “inner side” is provided with at least one ultrasound wave transducer. The inspection head can include a second side, called “outer side” opposite the first side that has a curved surface in the form of a cylinder fraction, and wherein the curved surface of the second side has outward facing convexity. The wave transducer can be formed of a series of juxtaposed elements, each element being both a transmitter and receiver, wherein a surface of the series is curved and in the form of a cylinder fraction, and wherein the surface of the series has outward facing concavity.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 3, 2021
    Inventors: Fabienne Rupin, Guillemette Ribay
  • Patent number: 11040318
    Abstract: The present invention relates to a liquid mixing device which has a control system and electronic regulation, in charge of receiving the parameters set with respect to the liquid which is expected to be supplied by the tap or supply means whereto said device is connected and which acts on the regulation means of the different supply lines of liquids to mix to achieve said parameters, which has a high measurement and actuation dynamic thanks to measuring sections with ultrasonic transducers and proportional solenoid valves and a configuration and geometry of said measuring sections which allows having a multitude of reliable measurements per second.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 22, 2021
    Assignee: SEDAL, S.L.U.
    Inventors: Isaac Salas Arranz, Rafael Bello Larroche
  • Patent number: 10997868
    Abstract: Methods of and systems to provide performance measurement are provided utilizing an architecture configured to efficiently merge and monitor different types of performance data. Connectors are provided to receive and translate different types of performance data from different sources. The performance data is translated into and stored in a common data model format. In some embodiments, key attributes are defined for each of the performance data sources that uniquely characterizes each relevant performance data so that is can be parsed into separate processing streams to increase system performance. The key attributes also act as cues to organize the performance data as it is being merged so that it can be accessed without requiring a specific source data linkage. Using model listeners, determinations can be quickly made regarding when performance data is changed to reduce calculations necessary to determine measure values. Some embodiments merge different types of performance data in real-time.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 4, 2021
    Assignee: Aptima, Inc.
    Inventors: Michael Tolland, Zachary Zuzack
  • Patent number: 10999075
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based storage of patrol inspection proof are provided. One of the methods includes: receiving proof information of patrol inspection at a patrol inspection site; obtaining one or more operating environment parameters of the mobile terminal at a time of the patrol inspection, wherein the one or more operating environment parameters comprise at least location information and sensor data of the mobile terminal; performing credibility verification on the patrol inspection site based on the proof information, the location information, and the sensor data using an algorithm model based on labeled identification information, labeled operating environment parameters, and historical attendance information; and in response to the credibility verification being successful, uploading verification information associated with the proof information for storing in a blockchain.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 4, 2021
    Assignee: ADVANCED NEW TECHNOLOGIES CO., LTD.
    Inventors: Hongbo Cai, Kaiming Huang, Zhe Han, Shiqi Jiang, Lei Yang
  • Patent number: 10928360
    Abstract: This invention is directed to an automatic inspection system of welding spots in the car body and a control method thereof, the automatic inspection system comprising a controller and a robot arm, a probe device, and a visual system, wherein the robotic arm holds a camera and the probe device, the probe device targets at car body welding spot and form the first included angle with the camera. Many lighting sources are distributed around the camera, which form the second included angle with the camera. The camera is connected with Image Collecting and Processing Device to obtain position data of welding spot in the car body, the controller is connected with Image Collecting and Processing Device by network, and foresaid controller rectifies position of the probe on the robotic arm according to the position of welding spot in the car body.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 23, 2021
    Assignee: SHANGHAI EVERTEC ROBOT TECHNOLOGY, Ltd.
    Inventors: Weibin Xiong, Bin Sun, Gaokun Li
  • Patent number: 10837952
    Abstract: A bearing lubrication system includes a lubricant distributor configured to perform a lubrication operation by moving lubricant toward an interior of a housing of a bearing, at least one sensor configured to measure at least one condition of the bearing and to produce a signal indicative of the at least one measured condition and a controller configured to produce a transient detection signal, a signal indicative of a second derivative of the measurement signal, for example, and to determine whether an absolute value of the transient detection signal exceeds a threshold value during a given time period after the lubrication operation and to output a failure signal indicative of a lubrication failure in response to a determination that the absolute value of the transient detection signal does not exceed the threshold value during the given time period. Also a method of operating a bearing lubrication system.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 17, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Andreas Clemens Van der Ham, Jeroen Bongaerts, Gert-Jan Scheers
  • Patent number: 10753827
    Abstract: A method and system for measuring vertical wheel impact force in real-time based on tire pressure monitoring is provided by the present invention. The system mainly includes the four modules, namely a tire pressure derotation preprocessing, a tire pressure-wheel force system identification, a calibration method, and an integrated device for tire pressure-wheel force measurement. The method uses the integrated device to collect tire pressure data in real-time. The corresponding vertical wheel impact force is obtained through the derotation preprocessing and the tire pressure-wheel force system identification, and is calibrated according to the calibration method. The present invention provides an efficient, accurate, and highly adaptable wheel force measurement solution in the theoretical aspect and device aspect, which meets the requirements for the quick evaluation of the bridge health condition.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: August 25, 2020
    Assignee: SOUTHEAST UNIVERSITY
    Inventors: Jian Zhang, Zhao Chen, Wenju Zhao, Liming Zhou
  • Patent number: 10748197
    Abstract: Systems and methods for a product driven approach to technology provisioning, operations, and billing are provided. Some embodiments provide an Information Technology (IT) business architecture built around the product driven methodology. This architecture can be designed to optimize the demand side provisioning of technology products to meet business intent and the execution of supply side assembly and implementation lifecycle. A technology model can be used that recursively decomposes services and products into various components. As a result, the technology model allows for effective and efficient provisioning, pricing, and impact assessment of the organization's technology to thereby drive the efficiency of scale and the automation of the provisioning, the finance, and the operation businesses.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: August 18, 2020
    Assignee: Goldman Sachs & Co. LLC
    Inventors: Carl J. Reed, Charles Klein
  • Patent number: 10726963
    Abstract: There is provided an inspection device for inspecting an inner surface of a nozzle provided in a reactor vessel. The inspection device includes: a device frame, an inspection unit provided on the device frame, an inspection unit push-out moving mechanism for pushing out and moving the inspection unit to the inner surface of the nozzle, a rotation moving mechanism for rotating and moving the inspection unit, a calibration test unit arranged on the device frame for calibrating the inspection unit; and a calibration test unit forward/backward moving mechanism for moving the calibration test unit forward or backward in the direction along the central axis with regard to a track where the inspection unit makes push-out movement.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 28, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kazushige Namba, Tomonori Shichida, Naoto Kawase
  • Patent number: 10727027
    Abstract: A repeating setpoint generator module selectively varies a setpoint for an output parameter according to a predetermined pattern that repeats during successive time intervals. A closed-loop module, during a first one of the time intervals, generates N closed-loop values based on N differences between (i) N values of the setpoint at N times during the first one of the time intervals and (ii) N measurements of the output parameter at the N times during the first one of the time intervals, respectively. An adjusting module, during the first one of the time intervals, generates N adjustment values based on N differences between (i) N values of the setpoint at the N times during a second one of the time intervals and (ii) N measurements of the output parameter at the N times during the second one of the time intervals, respectively.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: July 28, 2020
    Assignee: MKS Instruments, Inc.
    Inventors: Larry J. Fisk, II, Aaron T. Radomski, Jonathan W. Smyka
  • Patent number: 10685754
    Abstract: An improved testing and data gathering method is described herein with reference to testing a new fuel, as an exemplary component to be tested for licensure purposes. The method includes generally: generating models for the new system; making samples and getting them accepted for a reactor; and testing the samples in a test or commercial reactor until the exposure time is reached for the expected cycle length of the fuel at final use. The method is preferably done concurrent to submitting a license application for commercial use of the new component to the relevant government body to expedite license testing review.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 16, 2020
    Assignee: Westinghouse Electric Company LLC
    Inventors: Edward J. Lahoda, Sumit Ray
  • Patent number: 10670746
    Abstract: A sample container, sampling system and operating methods permit representative sampling from a liquid phase or boiling liquid, a gaseous phase, a containment sump, containment atmosphere, or condensation chamber of a nuclear power plant following a severe accident. A sample container obtaining an environmental sample includes an outer chamber surrounded by an outer container wall, being directly fluidically connected to the environment through a passage opening in the outer container wall and being fillable with a liquid at least in a base region. An inner chamber surrounded by an inner container wall is fluidically connected to the base region through a passage opening in the inner container wall, has connections for sampling and conveyor medium lines and is otherwise pressure and media tightly sealed from the environment. A pneumatically or hydraulically actuatable closure device for the passage opening between the outer and inner chambers has an actuation medium line connection.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 2, 2020
    Assignee: Framatome GmbH
    Inventor: Axel Hill
  • Patent number: 10672527
    Abstract: A transmitter device includes a neutron detector structured to detect neutron flux, a capacitor electrically connected in parallel with the neutron detector, a gas discharge tube having an input end and an output end, and an antenna electrically connected to the output end. The input end is electrically connected with the capacitor. The antenna is structured to emit a signal corresponding to the neutron flux.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 2, 2020
    Assignee: Westinghouse Electric Company LLC
    Inventor: Lyman J. Petrosky
  • Patent number: 10658087
    Abstract: A detection apparatus is usable to detect the neutron absorption capability of a control element of a nuclear installation and includes a neutron radiograph apparatus and a robot apparatus. The neutron radiograph apparatus includes a neutron emission source of variable strength, a detector array, a mask apparatus and a positioning robot all under the control of a central processor and data acquisition unit. The neutron emission source is advantageously switchable between an ON state and OFF state with variable source strength in the ON state, which avoids any need for shielding beyond placing the neutron emission source in an inspection pool at the nuclear plant site including but not limited to the spent fuel or shipping cask laydown pools. The neutron emission source is situated at one side of a wing of the control element and generates a neutron stream, the detector array is situated on an opposite side of a wing, and the neutron emission source and detector array are robotically advanced along the wing.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 19, 2020
    Assignee: Westinghouse Electric Company LLC
    Inventor: David L. Stucker
  • Patent number: 10556541
    Abstract: A vehicle periphery monitoring device includes a location information acquisition unit configured to acquire a current location of the vehicle; a vehicle-mounted camera configured to capture an image of the exterior of the vehicle; a display device configured to display the image; a caution point information storage unit configured to store information relating to a caution point, which is a location where use of the vehicle-mounted camera is recommended; and a control unit configured to carry out vehicle exterior image display to output the image acquired by the vehicle-mounted camera to the display device, wherein the control unit carries out the vehicle exterior image display when it is determined that the caution point is present near the acquired current location.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: February 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Toshiro Hikita
  • Patent number: 10557828
    Abstract: An ultrasonic phased array transducer assembly having a single housing in which a plurality of phased array transducer subassemblies are mounted at a skewed angle relative to a leading face of the housing and to each other, with each transducer mounted on composite wedge(s) at different orientations within the housing.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 11, 2020
    Assignee: Westinghouse Electric Company LLC
    Inventors: Charles R. Barrett, Kevin J. Foley
  • Patent number: 10553323
    Abstract: A fuel ball detecting method and system with a self-diagnosis function are provided. The method includes: exciting a first detecting coil and a second detecting coil of a fuel ball sensor disposed outside a pipeline; obtaining a first voltage signal U1 from the first detecting coil and a second voltage signal U2 from the second detecting coil; processing U1 and U2 by differential amplification, band pass filtering, phase sensitive detection and low pass filtering by a signal processor to obtain a fuel ball waveform signal U0; determining whether the fuel ball passes the pipeline according to U0 by a single chip microcomputer; determining whether the first and the second detecting coils, the signal processor and the single chip microcomputer work normally; outputting a result showing whether the fuel ball passes the pipeline, when the first and the second detecting coils, the signal processor and the single chip microcomputer work normally.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: February 4, 2020
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Zandong Han, Haiquan Zhang, Dong Du, Xiaoyang Li, Haipeng Zhou
  • Patent number: 10520483
    Abstract: An autonomous device for detecting characteristics of a medium to be measured is disclosed. The device includes a sensor, a first microcontroller and a second microcontroller. The first microcontroller has a memory which is not resistant against gamma radiation during the sterilization of the device and the second microcontroller has a memory which is resistant against gamma radiation during the sterilization of the device.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 31, 2019
    Assignee: Hamilton Bonaduz AG
    Inventors: Frederic Juillerat, Yoann Gasteuil
  • Patent number: 10513437
    Abstract: A technique may be employed to facilitate manufacturing/processing of generator tubes for use in a variety of logging applications. A getter-based gas storage chamber is provided with a getter able to adsorb a desired gas such as a deuterium and/or tritium gas. The getter-based gas storage chamber may be connected with a neutron tube via a gas flow network and a releasable coupling. The gas, e.g. deuterium and/or tritium gas, is released by heating the getter. The gas is allowed to flow through the gas flow network and into the neutron tube.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: December 24, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ryan McCaffrey, Aaron Stover, Fadi Abu Ibrahim
  • Patent number: 10495740
    Abstract: A system has an actuator with a first surface and a second surface, the first surface being offset a step dimension from the second surface. A sensor is configured to measure a distance between the sensor and both the first surface and the second surface via a signal received by the sensor after having reflected off the first surface or the second surface. The step dimension is greater than a minimum dimension, which is defined in view of a medium through which the actuator moves and a frequency of the signal.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: December 3, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventor: William E. Rhoden
  • Patent number: 10354766
    Abstract: A method for simulating the fluid flow in a vessel of a nuclear reactor is provided. The reactor includes a core inside the vessel, the core including a lower plate, an upper plate and fuel assemblies extending between the plates, and having a volume axially delimited by first and second interfaces corresponding to the plates. The method includes computing, for the core volume, the fluid pressure and speed, from an initial value of the speed or pressure in the first interface and respectively in the second interface, and using the fluid mass, movement quantity and energy balance equations.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: July 16, 2019
    Assignee: AREVA NP
    Inventors: Nicolas Goreaud, Jérémy Galpin, Benjamin Chazot, Hubert Salaün, Elodie Mery De Montigny
  • Patent number: 10311986
    Abstract: An inspection apparatus may include an installation platform and a scan head. The scan head may be configured to engage in an index movement, a theta movement, a wrist fold movement, and a scan movement. During the scan movement, a transducer of the scan head travels a circumferential path so as to allow an inspection of a surface that is opposite of a surface on which the installation platform is mounted. The inspection apparatus may be used to inspect a reactor component in a nuclear reactor.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: June 4, 2019
    Assignee: GE-HITACHI NUCLEAR ENERGY AMERICAS LLC
    Inventors: Matthew Robert Hastings, Ryan M. Smith, Lenin N. Benicki
  • Patent number: 10229763
    Abstract: Provided are a neutron detector for detecting a neutron flux distribution of the inside of a reactor, a drive cable connected to the neutron detector, a drive unit for driving the drive cable, a plurality of guide thimbles provided being inserted from the outside of the reactor into the reactor, for inserting the neutron detector, a storage tube for storing the neutron detector, a path transfer device connected to the drive unit, for selecting one of insertion of the neutron detector into each of the guide thimbles and insertion of the neutron detector into the storage tube, and an inspection guide tube connecting the drive unit and the storage tube. The drive unit has a switching unit for switching between the path transfer device side and the inspection guide tube side.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: March 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kenji Ohsaka
  • Patent number: 10217609
    Abstract: A repeating setpoint generator module selectively varies a setpoint for an output parameter according to a predetermined pattern that repeats during successive time intervals. A closed-loop module, during a first one of the time intervals, generates N closed-loop values based on N differences between (i) N values of the setpoint at N times during the first one of the time intervals and (ii) N measurements of the output parameter at the N times during the first one of the time intervals, respectively. An adjusting module, during the first one of the time intervals, generates N adjustment values based on N differences between (i) N values of the setpoint at the N times during a second one of the time intervals and (ii) N measurements of the output parameter at the N times during the second one of the time intervals, respectively.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 26, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: Larry J. Fisk, II, Aaron T. Radomski, Jonathon W. Smyka
  • Patent number: 10143192
    Abstract: An animal trap comprising a trap (106, 102, 302) section having at least one moveable wall section (136, 228, 314), being moveable with respect to one or more other walls of the trap section to thereby alter the size of the trap section; animal detection means (138, 242, 306) operable to detect the presence of an animal within the trap section and adapted to signal such a presence to control means, which control means is operable, upon receipt of said signal, to cause movement of the moveable wall section (136, 228, 314) and thus alter the size of the trap section.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: December 4, 2018
    Assignee: Dasher Developments Ltd
    Inventor: Gordon Brown
  • Patent number: 10083768
    Abstract: A method for controlling the positions of a plurality of nuclear fuel assemblies (1) relative to an upper core plate (3) in a nuclear reactor core, the method including the following steps: choosing a reference point (13) in internals or in a reactor vessel; determining the positions of S-shaped holes of the nuclear fuel assemblies (1) relative to the reference point (13), each S-shaped hole being intended to cooperate with a corresponding centering pin of the upper core plate (3); acquiring the positions of the centering pins of the upper core plate (3) relative to the reference point (13); and comparing the positions of the S-shaped holes and the positions of the pins and deducing therefrom whether the nuclear fuel assemblies (1) are correctly positioned relative to the upper core plate (3).
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: September 25, 2018
    Assignee: AREVA NP
    Inventors: Audrey Tournant, Frederic Alain Magre, Benjamin Loriot
  • Patent number: 9997263
    Abstract: A method involving periodic implementation, during the same operating cycle of the reactor, the method including following steps of: a) calculating, from measurements provided by sensors present in the reactor, the three-dimensional distribution of the local power in the core, b) simulating at least one accidental transient occurrence of power applied to the calculated three-dimensional distribution of local power, c) identifying, using thermomechanical calculations, at least one rod which is the most likely to be subject to a fracture of the cladding thereof during the simulated transient occurrence of power, and d) determining, using thermomechanical calculations on the rod identified, the value of the parameter which is representative of the operability of the reactor.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: June 12, 2018
    Assignee: AREVA NP
    Inventors: Gilles Andre Poyaud, Bruno Julien, Jean-Lucien Mourlevat
  • Patent number: 9949644
    Abstract: The present invention relates to a torsional vibration resonance frequency measuring method and a novel amplitude transformer for assessing the stability of dental implants. In one example, a torsional vibration resonance frequency measuring method includes installing an amplitude transformer on a dental implant, energizing a torsional vibration mode, gathering resonance signals, and analyzing a resonance frequency. In another example, an amplitude transformer for measuring torsional vibration resonance frequency in a dental implant, includes an anti-rotary horizontal double-winged component and a central bolt. The central bolt is configured to closely connect with the inner threads of the dental implant, such that the amplitude transformer can integrate with the dental implant sufficient to vibrate as an integral structure under energizing.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: April 24, 2018
    Assignee: Fourth Military Medical University of Chinese People's Liberation Army
    Inventors: Dehua Li, Yulong Tang, Bing Li
  • Patent number: 9721683
    Abstract: A system for monitoring a condition of a nuclear reactor pressure vessel disposed in a radioactive environment includes an instrument structured to monitor a condition of the nuclear reactor pressure vessel; a powered wireless transmitting modem disposed in the radioactive environment, the wireless transmitting modem being electrically coupled to the instrument; a receiving modem disposed in the line of sight of the transmitting modem, the receiving modem being in wireless communication with the transmitting modem; and a signal processing unit electrically coupled to the receiving modem, the signal processing unit being structured to determine the condition of the nuclear reactor pressure vessel from the instrument. The transmitting modem is powered by a thermocouple disposed in or on the reactor pressure vessel.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: August 1, 2017
    Assignee: Westinghouse Electric Company LLC
    Inventor: Richard W. Morris
  • Patent number: 9689722
    Abstract: A method for monitoring a transmitter (1) with a measurement (2) and a transmission unit (3), with which a measurement (2) signal is generated that is dependent on a measurement quantity, and with the transmission unit (3) receiving the measurement signal, and based on the measurement signal, an output signal is transferred to a signal transmission element (4). To makes it possible to recognize an error, an input signal is taken from the signal transmission element (4) and is transferred to the measurement unit (2) as a comparison signal which corresponds to the input is compared with a stored signal and based upon the outcome of the comparison, either the measurement signal is transferred from the measurement unit (2) to the transmission unit (3) or the transmission unit (3) is shifted into a definable state and an error signal is transferred to it.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 27, 2017
    Assignee: KROHNE Messtechnik GmbH
    Inventor: Vincent Pichot
  • Patent number: 9684302
    Abstract: A nuclear power plant control system including: a detection unit for detecting a specific event occurring in the nuclear power plant; an on-site equipment handling the event; and a majority decision judging device and an on-site equipment control device which constitute a plurality of control devices respectively operating independently. Each of the control devices includes a plurality of arithmetic units which perform arithmetic processes independently and in parallel based on a detection result of the detection unit, and output a signal for controlling the on-site equipment according to the results of operations of the arithmetic processes. The plurality of arithmetic units perform a matching process for harmonizing process statuses of the arithmetic processes of respective arithmetic units with each other when starting up the control devices, and after completing the matching process, respectively perform the arithmetic processes independently and in parallel.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: June 20, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shinji Kiuchi, Hironobu Shinohara, Yasutake Akizuki, Toshiki Fukui, Hiroshi Shirasawa
  • Patent number: 9645871
    Abstract: For a soft error of an electronic device, a technique capable of ensuring high reliability because of a low soft error rate (SER) is provided. By using building data including information of a structural object of a building and facility data including information of a plurality of facilities including an electronic device arranged in the building, a SER calculating device calculates a model including an attenuation index value representing a degree of attenuation of radiation entering the building attenuated by the structural object of the building until the radiation reaches a position of the facility arranged in the building, calculates a SER at each position of the facility arranged in the building by using the model including the attenuation index value, and outputs information including the SER at each position of the facility.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: May 9, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Shimbo, Tadanobu Toba, Takumi Uezono
  • Patent number: 9576689
    Abstract: A critical heat flux prediction device, a critical heat flux prediction method, a safety evaluation system, and a core monitoring system using the safety evaluation system can predict critical heat flux in a core of a reactor with a high degree of accuracy by obtaining a correlation plot distribution representing a relation of critical heat flux on a thermal equilibrium quality based on experimental data, approximating a correlation plot distribution through a logistic function that is a model function in which critical heat flux is expressed by a function of a thermal equilibrium quality, and obtaining a critical heat flux correlation of critical heat flux and a thermal equilibrium quality.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 21, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Tadakatsu Yodo
  • Patent number: 9401229
    Abstract: An inspection apparatus for a penetration pipe of a nuclear reactor head comprising: a body; a probe module installed at the body and having a probe which is inserted in the penetration pipe to inspect damage of the penetration pipe; a fixing module installed along a longitudinal direction of the body and having an expanding cylinder which is inserted in the penetration pipe to support an inner diameter of the penetration pipe; and a rotating module installed in the longitudinal direction of the body and having an expanding cylinder which is inserted in the penetration pipe to support the inner diameter of the penetration pipe.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 26, 2016
    Assignee: KOREA PLANT SERVICE & ENGINEERING CO., LTD
    Inventors: Min Su Park, Hong Seok Ryu, Youn Kyu Kim, Dong il Kim, Bae Jun Kang, Joon Hong Kim, Won Taik Lim, Sak Lee
  • Patent number: 9268389
    Abstract: Energy savings can be obtained by masking a computationally-intensive task from a processor performance management system which selects the processor performance state based on the load on the processor (CPU). By preventing the PPM system from reacting to the computational load the application places on the processor, the time to complete execution of the application increases but the energy used by the application may be greatly reduced and thermal stress on the CPU is also reduced (preventing noisy fans from operating). This approach makes it convenient to run a computationally intensive task as a background task. The masking can be achieved by running the task in tiny bursts, with micro-sleeps in between them, so that the average CPU load is low over a time period that the PPM system uses for measuring CPU activity/load.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 23, 2016
    Assignee: Sony Corporation
    Inventor: Peter Hanappe
  • Patent number: 9207217
    Abstract: This invention relates generally to ultrasonic inspection of welds and more particularly, to apparatus and methods for ultrasonic inspection of welds on access hole covers found in boiling water reactors having jet pumps. The apparatus includes a base, a center frame coupled to the base and projecting vertically relative to the access hole cover, a radial arm structured to rotate on the center frame and having attached thereto a first pneumatic linear thruster and a second pneumatic linear thruster, and a skew motor assembly and transducer are attached to the first pneumatic linear thruster for scanning the access hole cover weld. The skew motor assembly is structured to control the angle of the transducer and the first pneumatic linear thruster is structured to raise and lower the transducer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 8, 2015
    Assignee: Westinghouse Electric Company LLC
    Inventors: John R. Carbonell, Roy C. May, Charles R. Barrett
  • Patent number: 9057145
    Abstract: A method for electrodepositing a metal layer from an electrolytic bath is described, wherein the concentrations of at least two components of the electrolytic bath are monitored by carrying out the following steps: (a) a sample is taken from the electrolytic bath; (b) the sample is supplied to a column for solid phase extraction, which contains a solid sorbent material; (c) the column is subjected to a washing procedure with a first eluent, wherein the at least two components remain on the column, and undesired components are eluted from the column; (d) the at least two components are eluted from the column by a second eluent; (e) the concentrations of the at least two components in the eluate obtained in step (d) are determined without separating the components from each other. In this method the use of poly(divinyl benzene-co-N-vinyl pyrrolidone) for solid phase extraction is particularly advantageous.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 16, 2015
    Assignee: Atotech Deutschland GmbH
    Inventors: Jürgen Barthelmes, Robert Rüther, Florence Lagorce-Broc, Olaf Kurtz, Oleg Sprenger, Marta Sainz-Vila, Thomas Moritz, Josef Gaida
  • Patent number: 9020090
    Abstract: This document's object is to provide an axial power distribution control method in which only the control of an axial power distribution in a nuclear reactor with a simple operation with a clear operational target keeps the control of a xenon oscillation, thereby suppressing the xenon oscillation to an extremely small magnitude in advance at the same time.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: April 28, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Yoichiro Shimazu
  • Patent number: 9001957
    Abstract: Electrochemical corrosion potential (ECP) probe assemblies may be used to monitor ECP of materials due to coolant chemistry in an operating nuclear reactor. Example embodiment assemblies include at least one ECP probe that detects ECP of potentially several different materials, a structural body providing a fluid flow path for the coolant over the ECP probes, and a signal transmitter that transmits or carries ECP data to an external receiver. The ECP probes may be of any number and/or type, so as to detect ECP for different component materials, including stainless steel, a zirconium alloys, etc. The ECP probes may further detect ECP due to ion concentration, pH, etc. The ECP data may be transmitted through wired or wireless signal transmitters. Example methods include installing and using example embodiment ECP probe assemblies in nuclear reactors and facilities.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 7, 2015
    Assignee: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: Filemon Tecson Cabrera, Angelito Foz Gonzaga, Edgardo V. Nazareno, Russell Seeman, Samson Hettiarachchi
  • Publication number: 20150092902
    Abstract: A neutron detector system and method for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. Comparison of the observed neutron count distribution with a Poisson distribution is performed to distinguish fissile material from non-fissile material.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 2, 2015
    Inventors: Mark S. Rowland, Neal J. Snyderman
  • Patent number: 8995602
    Abstract: A jet pump beam (hereinafter, referred to as a beam) is fitted into a pair of projecting portions installed to a transition piece, and after the beam is arched, a beam bolt engaged with the beam is tightened. An end of the beam bolt comes in contact with a top surface of an insert member fitted into an elbow disposed between the pair of projecting portions. An ultrasonic sensor head is fixed to the beam bolt, and ultrasonic waves are sent to the beam bolt from the ultrasonic sensor in the ultrasonic sensor head. An ultrasonic measuring apparatus obtains echo intensity of each of reflected waves generated at the end of the beam bolt and a bottom surface of the insert member, and based on the echo intensities, an echo intensity ratio R is calculated. The installed state of the beam is checked using the echo intensity ratio R.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: March 31, 2015
    Assignee: Hitachi-GE Nuclear Energy, Ltd.
    Inventors: Atsushi Baba, Yoshinori Musha, Masahiro Hiratsuka, Minoru Ootaka, Masahiro Koike
  • Patent number: 8995601
    Abstract: An axial power distribution control device includes an axial offset calculation unit 52, a parameter calculation unit 53, and an axial offset determining unit 55. The axial offset determining unit 55 predicts whether a core axial offset of the power distribution is increased or decreased after a current time, based on a major axis of an ellipse drawn by the xenon parameter and the iodine parameter calculated by the parameter calculation unit 53 and the xenon parameter and the iodine parameter at the current time. This makes it possible to predict a change of the axial offset of the power distribution of a reactor for suppressing a xenon oscillation in the reactor.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 31, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masayuki Kauchi, Masatoshi Nagai
  • Patent number: 8958519
    Abstract: A nuclear reactor comprises a pressure vessel, a nuclear reactor core comprising fissile material disposed in the pressure vessel, and a core basket disposed in the pressure vessel and containing the nuclear reactor core. An incore instrument is disposed in a guide tube of the nuclear reactor core. The incore instrument has a cable extending out of the bottom of the nuclear reactor core and making a 180° turn. A bottom support element is attached to the bottom of the core basket and defines or includes a routing tube that routes the cable of the incore instrument through the 180° turn. In some embodiments, the pressure vessel includes upper and lower vessel portions, the nuclear reactor core and core basket are disposed in the lower vessel portion, and the vessel penetration is through the lower vessel portion or through a mid-flange connecting the upper and lower vessel portions.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: February 17, 2015
    Assignee: Babcock & Wilcox mPower, Inc.
    Inventors: Andrew C. Whitten, Michael J. Edwards
  • Patent number: 8958518
    Abstract: The invention relates to a device for inspecting a fuel assembly in the pool of a nuclear plant, that comprises an image sensor with an observation field, and further comprising a boom with at least one removable fastener to the assembly, a reference graduation extending along an axis parallel to a longitudinal axis of the assembly, so that the image sensor can monitor within its field both the boom and the assembly. The device is designed so that the boom can be removably attached to the fuel assembly when the latter is suspended outside the pool by the hook of the machine for handling the fuel assemblies. The invention also relates to a corresponding method.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: February 17, 2015
    Assignee: Electricite de France
    Inventors: Richard Cauvin, Denis Tessier