Patents by Inventor Brian C. Johnson

Brian C. Johnson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180322968
    Abstract: A gas-cooled pressure tube nuclear reactor is described that uses a room temperature and pressure gas as a primary coolant and a liquid moderator as a secondary coolant. The primary coolant, which may be maintained in a supercritical state, is circulated through fuel columns in a pool of the liquid moderator. The primary coolant removes the heat generated by fission from the nuclear fuel. The heated primary coolant is then passed to one or more turbines to generate power. The primary coolant is then repressurized by one or more compressors using some of the generated power from the turbines. Several modified Brayton cycle configurations are described that are uniquely suited to the operating conditions of the gas-cooled pressure tube reactor.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 8, 2018
    Applicant: TerraPower, LLC
    Inventors: Jesse R. Cheatham, III, Michael E. Cohen, Brian C. Johnson, Robert C. Petroski, Nicholas W. Touran, Bao H. Truong
  • Patent number: 9721678
    Abstract: A duct for a nuclear fuel assembly includes a tubular body and an elongated member. The tubular body has a sidewall with an inner face and an outer face and is configured to contain nuclear fuel within a fuel region. The elongated member extends from the outer face along at least a portion of the fuel region and has a contact surface configured to stabilize the duct during operation of the nuclear fuel assembly.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: August 1, 2017
    Assignee: TerraPower, LLC
    Inventors: Jesse R. Cheatham, III, Michael E. Cohen, Pavel Hejzlar, Christopher J. Johns, Brian C. Johnson, Robert C. Petroski, Philip Schloss, Bao H. Truong, Jay R. Tandy, Mark R. Werner
  • Publication number: 20160183878
    Abstract: Technologies for managing device functions of an ingestible computing device include determining whether adaptation of a device function of the ingestible computing device is required based on sensor data generated by the ingestible computing device. If device function adaption is determined to be required, the ingestible computing device determines a new device function to be performed, obtains program code modules to perform the new device function, and locally compiles the new program code modules to generate executable code. The ingestible computing device may execute the executable code to cause the ingestible computing device to begin performing the new device function. The ingestible computing device may obtain the program code modules from a local function database or via an authenticated wireless communication.
    Type: Application
    Filed: December 27, 2014
    Publication date: June 30, 2016
    Inventors: John C. Weast, Brian C. Johnson, Tobias M. Kohlenberg
  • Patent number: 9362010
    Abstract: In response to a change in a thermal operational parameter in a nuclear fission reactor, reactivity is controlled by driving a neutron absorption parameter modifying material to or from a region of the core of the nuclear fission reactor. The apparatus includes a driver material disposed in a first reservoir portion and a second reservoir portion of a first reservoir and connected by a first conduit. A high-Z material may be distributed in the driver material. The neutron absorption parameter modifying material is disposed in both a second reservoir and the second reservoir portion of the first reservoir. A portion of the neutron absorption parameter modifying material is in physical contact with a portion of the driver material in the second reservoir portion. The neutron absorption parameter modifying material is driveable by the driver material between the second reservoir portion and the second reservoir through a second conduit.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: June 7, 2016
    Assignee: TerraPower, LLC
    Inventors: Jesse R. Cheatham, III, Robert A. Corbin, Michael E. Garrett, John Rogers Gilleland, Pavel Hejzlar, Christopher J. Johns, Brian C. Johnson, Yu-Chih Ko, Jon D. McWhirter, Robert C. Petroski, K. Michael Steer, Bao H. Truong, James M. Vollmer, Joshua C. Walter, Kevan D. Weaver
  • Publication number: 20140341331
    Abstract: A duct for a nuclear fuel assembly includes a tubular body and an elongated member. The tubular body has a sidewall with an inner face and an outer face and is configured to contain nuclear fuel within a fuel region. The elongated member extends from the outer face along at least a portion of the fuel region and has a contact surface configured to stabilize the duct during operation of the nuclear fuel assembly.
    Type: Application
    Filed: February 11, 2014
    Publication date: November 20, 2014
    Inventors: Jesse R. Cheatham, III, Michael E. Cohen, Pavel Hejzler, Christopher J. Johns, Brian C. Johnson, Robert C. Petroski, Philip Schloss, Bao H. Truong, Jay R. Tandy, Mark R. Werner
  • Publication number: 20020155333
    Abstract: A component for an electrochemical cell comprises a thermally and electrically conductive core with an active area substantially covered by an electrically and thermally conductive polymeric composite, wherein the conductive polymeric composite is adhered to the core by an adhesion promoter. The electrically conductive polymeric composite preferably comprises a thermosetting polybutadiene- or polyisoprene-based resin system and an electrically conductive filler. The component is resistant to chemical attack and hydrolysis, and has excellent mechanical strength and toughness. Components may be manufactured having a volume resistivity of about 0.500 ohm-cm or less and a thermal conductivity of at least about 5 watts/meter ° K,. In addition, the component is economical to produce due to inexpensive starting materials as well as the use of conventional processing equipment.
    Type: Application
    Filed: January 18, 2002
    Publication date: October 24, 2002
    Inventors: Bruce B. Fitts, Vincent R. Landi, Saroj Kumar Roy, Brian C. Johnson, Scott G. Ehrenbert
  • Patent number: 5398315
    Abstract: Video display apparatus having multiple processors for operation in parallel, each processing a respective complete video image in the sequence of video images (fields or frames) which form a video picture, the processing being in accordance with a selected signal processing algorithm. The algorithm may be one which simulates a signal processing circuit design which is to be evaluated, so that the effect of changes in circuit design can be displayed in real time. The signal data for each of the sequential video images is assembled into data packets in successive equal time slots, which are transmitted downstream on a data bus along which are a succession of data processors. The headers of the packets for a given image identify a serially corresponding processor to which such image is assigned, and such packets are processed by the assigned processor in accordance with the selected algorithm.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: March 14, 1995
    Assignee: North American Philips Corporation
    Inventors: Brian C. Johnson, Michael A. Epstein
  • Patent number: 5339398
    Abstract: A hashing data storage and retrieval arrangement whose storage capacity is unaffected by collisions. A first memory serves as a hash index table, for storing pointers at each address location corresponding to a hash value generated by hashing a key data word. Each pointer is the address of a location in a second memory, which has a separate storage location for each key data word, its associated data, and a further pointer which is the address of the next key data word resulting from a collision during hashing. Preferably a pipeline register between the two memories permits hashing of a subsequent key data word while accessing of the second memory is still in progress.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: August 16, 1994
    Assignee: North American Philips Corporation
    Inventors: Imran A. Shah, Brian C. Johnson
  • Patent number: 5113516
    Abstract: A data repacker utilizing a multiplexer, one intermediate register, two shifters, and a control for these circuits. The multiplexer output is connected to the intermediate register, which has a storage length greater than the size of data words to be repacked. The first shifter receives the output of the register, and its output can be concatenated with an input data word to form one input to the multiplexer. The output of the register is provided as another input to the multiplexer. The second shifter also receives the output of the multiplexer, and has an output which is the repacker output. Information representing the number of bits in and the number of bits out is used to determine the most and least significant bits of the intermediate data which will be stored in the intermediate register, and to control the shifters.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: May 12, 1992
    Assignee: North American Philips Corporation
    Inventor: Brian C. Johnson
  • Patent number: 5034907
    Abstract: A programmable digital signal processor usable in a variety of configurations and controlled by stored coefficients and control words which are addressable to be provided to a plurality of processing sections as often as once per clock cycle. The processor arrangement is suitable for use as a decoder of multiple analog component (MAC) television signals.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: July 23, 1991
    Assignee: North American Philips Corporation
    Inventors: Brian C. Johnson, Carlo Basile, Amihai Miron, Neil H. E. Weste, Christopher J. Terman, Judson Leonard
  • Patent number: 4542407
    Abstract: A method for scrambling and descrambling television programs in which the horizontal synchronizing information is suppressed at a CATV supplier's head-end and then regenerated at the subscriber's converter. The pulse frequency is multiplied by a factor N/M, in which N and M are integers thereby generating a synthesized pulse stream which is, in turn, encoded with data identifying the values for N and M. This encoded pulse stream is modulated onto the audio subcarrier wave in the TV video signal and transmitted to the converter. The converter then demodulates and recovers the encoded pulse stream, decodes the same to recover the identifying data, using this data to obtain the correct values for N and M which have been transmitted separately on a digital data channel. The converter then multiplies the synthesized pulse stream by M/N regenerating the horizontal synchronizing pulse stream and inserts the same into the TV video signal at the proper phase.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: September 17, 1985
    Assignee: North American Philips Corporation
    Inventors: Jeffrey L. Cooper, Brian C. Johnson
  • Patent number: 4493032
    Abstract: A method and apparatus are disclosed for providing very precise incremental motion of a numerically controlled machine tool, or other similarly controlled object, along a circularly arced path. For a mutually perpendicular X and Y coordinate system, X and Y indices are determined based on certain prescribed input information related to the parameters of the circular path and the relative rate of motion between the machine tool and the workpiece, and on immediate, continuously recomputed, coordinates of the tool or object. The indices are each scaled by a modulus related to the radius of the arc to generate incremental distances .DELTA.X and .DELTA.Y according to which the next move is to be made. The process is reiterated until the desired circular path is complete. In both method and apparatus, only integer values of .DELTA.X and .DELTA.Y are used for implementing each increment of motion. Non-integer values are carried forward to the next iteration of the process to prevent error accumulation.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 8, 1985
    Assignee: General Electric Company
    Inventor: Brian C. Johnson
  • Patent number: 4465970
    Abstract: A programmable time-of-use metering system is disclosed for metering electrical energy consumption at multiple rates depending on the time of day, time of week and time of year in which the energy is being consumed. A method for registering total energy consumed by a metered system as well as energy consumed during preselected time intervals is also disclosed.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: August 14, 1984
    Assignee: General Electric Company
    Inventors: Donald V. DiMassimo, John B. May, Brian C. Johnson, Jeffrey L. Cooper
  • Patent number: 4393501
    Abstract: In a communication system, a line protocol format with a variable bit rate and low bit overhead provides for the high integrity, synchronous exchange of digital signal information between master and slave processing units, with master processing unit controlling the line protocol.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: July 12, 1983
    Assignee: General Electric Company
    Inventors: Richard A. Kellogg, John B. May, Brian C. Johnson