Patents Represented by Attorney, Agent or Law Firm Thompson & Knight, LLP
  • Patent number: 8340056
    Abstract: A method for implementing communications in a railroad communications system having a base station radio and remote radios, the remote radios including a mobile radio and a wayside radio. The method includes assigning a common radio communications channel for allowing a remote radio to connect with the base station radio using a carrier sense multiple access (CSMA) communications protocol and assigning a local channel for allowing communications between the radio base station and the remote radios and between the remote radios, wherein communications on the local channel utilizes a selected one of fixed time division multiple access (FTDMA) and dynamic time division multiple access (DTDMA) communications protocols.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: December 25, 2012
    Assignee: MeteorComm LLC
    Inventors: Wipawee Siriwongpairat, Thanongsak Himsoon
  • Patent number: 8279796
    Abstract: A radio system including a selected number inputs for substantially simultaneously receiving radio signals in different frequency bands and a selected number of conversion paths for converting the radio signals received at corresponding ones of the inputs into a corresponding number of digital streams. Digital processing circuitry substantially simultaneously processes digital samples for plurality of channels, the samples taken from at least one of the digital streams, wherein a maximum number of channels is greater than a maximum number of digital streams provided by the conversion paths.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: October 2, 2012
    Assignee: BNSF Railway Company
    Inventors: John F. Cleveland, Thomas G. Donich
  • Patent number: 8261819
    Abstract: A method of determining a fluid level in a well space without substantial venting of gas to the atmosphere or injecting a gas at high pressure. Gas being produced by the well is used to create a pressure differential between two spaces. A wave is induced in the well space by causing the two spaces to come into gaseous communication for a selected time internal. Pressure changes are measured as the induced wave travels through the gas in the well space from the measurement system to a fluid surface and back to the measurement system to determine a round trip travel time of the wave. The fluid level is calculated from the round-trip travel time and a speed of the wave as one-half of the product of the wave speed and the round-trip time.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: September 11, 2012
    Inventors: Sam Gavin Gibbs, Kenneth Bernard Nolen
  • Patent number: 8187472
    Abstract: A drip disposal system includes a fluid source including a pump for cyclically pumping fluid from the fluid source, a set of drip field lines connected to the fluid source for dispersing at least some fluid provided by the source across an area of ground, and a return line for returning fluid not dispersed by the set of drip field lines to the fluid source. A blow-out valve is connected to the return line for controlling fluid flow through the return line during each cycle, the blow-out valve opening when a pressure of the fluid flowing through the return line exceeds a selected minimum pressure and closing when the pressure of the fluid flowing through the return line goes below the selected minimum pressure.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: May 29, 2012
    Inventor: Rudy James Svetlik, III
  • Patent number: 8179914
    Abstract: Synchronization within a common communication channel having designated transmission time slots for various devices of a computer network is maintained by allowing transmissions within the channel outside of a network device's designated time slot when a clear channel assessment indicates that a previous time slot is not being utilized by its associated device and/or upon receipt of an indication of the end of a transmission of another device in the network. The clear channel assessment preferably takes into account the device's designated transmission time slot within the communication channel with respect to those of other network devices and may be a time period that is the product of a predetermined clear channel waiting time and a numerical representation of the device's designated transmission time slot within the communication channel with respect to those of other network devices. The clear channel waiting time itself may be specified by a network master device as part of a network connection process.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 15, 2012
    Assignee: Cirrus Logic, Inc.
    Inventors: Rajugopal R. Gubbi, Donia Sebastian, Natarajan Ekambaram, Nirmalendu Bikash Patra
  • Patent number: 8176929
    Abstract: A spigot for a line-stopping sheath assembly includes a flange including a flange plate and a flange barrel. The flange barrel includes a wall extending from the flange plate, with an end of the wall of the flange barrel opposing the flange plate having a projection defining a periphery of a socket area for receiving an end of a pipe. The spigot also includes a pipe having an end disposed within the periphery of the socket area defined by the projection of the flange barrel.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 15, 2012
    Assignee: JCM Industries, Inc.
    Inventor: Aaron Caldwell Najera Collins
  • Patent number: 8171860
    Abstract: A cooling system for a hydrogen hybrid locomotive including a set of electric traction motors and a hydrogen fuel cell system for providing electric power for driving the traction motors. The cooling system includes a radiator for extracting heat from cooling fluid circulated through the hydrogen fuel cell system and a circulation system. The circulation system has a pump for moving the cooling fluid through the circulation system, a first circulation path including a radiator output valve for controlling a selected amount of the cooling fluid provided by the pump to a cooling fluid inlet of the hydrogen fuel cell system through the radiator, and a second circulation path including a bypass valve for bypassing a selected amount of the cooling fluid provided by the pump around the radiator and to the cooling fluid inlet of the hydrogen fuel cell system. A fan system provides air flow across the radiator.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: May 8, 2012
    Assignee: BNSF Railway Company
    Inventors: Arnold R. Miller, Kris S. Hess, Timothy L. Erickson, James L. Dippo
  • Patent number: 8146657
    Abstract: A method of inferring gas production utilizing a conduit having an outlet controlled by a valve in communication with a space within a well through which a gas volume is being produced. A selected number of measurements are taken during a selected period of time, with each measurement including closing the outlet valve to allow gas pressure within the conduit to change, sampling the gas pressure within the conduit over a sampling time period, calculating a rate of pressure change from samples taken over the sampling time period, and calculating a rate of gas production in the conduit from the calculated rate of change of pressure, the gas volume, well characteristics and gas properties. The calculated rates of gas production for the selected number of measurements are summed to determine an inferred rate of gas production through the conduit during the selected period of time.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 3, 2012
    Assignee: Sam Gavin Gibbs
    Inventors: Sam Gibbs, Bernard Nolen
  • Patent number: 8117969
    Abstract: A hydrogen hybrid locomotive including a set of batteries for driving a plurality of electric traction motors for moving the locomotive along a set of railroad rails and a fuel cell power plant for charging the set of batteries and driving the electric traction motors. The fuel cell power plant includes at least one fuel cell power module for generating electrical current by reacting hydrogen fuel and oxygen from intake air, the amount of electrical current being proportional to an air mass flow of the intake air. An air system selectively provides an air mass flow to the fuel cell module to generate an amount of electrical current required for corresponding operating conditions of the locomotive. A cooling system cools the at least one fuel cell power module in response to the amount of current being generated.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 21, 2012
    Assignee: BNSF Railway Company
    Inventors: Arnold R. Miller, Kris S. Hess, Timothy L. Erickson, James L. Dippo
  • Patent number: 8082841
    Abstract: A squeezing machine whose actual squeezing element is formed mainly of a cone or rotating head which, apart from the rotating movement, has upward or downward movement depending on the point in the squeezing operation, on which there is a set of blades in the form of fins in such a way that the fruit is deposited on said blades and when these are pushed by the rotating cone in its upward path exert pressure on the fruit, slicing this vertically and guiding it towards the cone for crushing the pulp, as the fruit cannot escape through being trapped in the recess inside a dome that may consist of two parts, one of them moving, in such a way that as it moves it leaves open a hole communicating the squeezing element with a bin containing the fruit to be squeezed, allowing in a fruit previously aligned with said hollow by means of a pulling system.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: December 27, 2011
    Assignee: Orange Juice Home, S.L.
    Inventors: Ignacio Horche Trueba, Javier Aparicio Adaro
  • Patent number: 8080111
    Abstract: A method of washing a piece of construction equipment includes washing a portion of the piece of construction equipment with water, collecting waste materials washed from the construction equipment in a bin, allowing liquid collected in the bin to drain into a receptacle having a sloped bottom for conveying the liquid to a sump, pumping the liquid from the sump, filtering the particulate matter pumped from the pump to recover clean water, and storing the recovered clean water for recycling in a tank.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: December 20, 2011
    Inventor: Ricki Joe Abney
  • Patent number: 8058895
    Abstract: A method of programming an integrated circuit to operate in a selected operating mode includes assigning different resistance values to correspond to different operating modes of the integrated circuit, wherein the different resistance values are non-zero finite values. The integrated circuit is programmed to operate in one of the modes based on a corresponding one of the different resistance values presented to a terminal of the integrated circuit.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 15, 2011
    Assignee: Cirrus Logic, Inc.
    Inventor: Gautham Devendra Kamath
  • Patent number: 8059607
    Abstract: A spatial transmit diversity method includes transmitting data at a selected rate from a first antenna and awaiting an acknowledgement indicating successful receipt by the receiving terminal of the data transmitted at the selected rate from the first antenna. The data are then transmitted at the selected rate from a second antenna upon failure to receive an acknowledgement of successful receipt by the receiving terminal of the data transmitted at the selected rate from the first antenna within a predetermined time interval.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 15, 2011
    Assignee: Cirrus Logic, Inc.
    Inventors: Michael J. Shaw, Daniel R. Dillon, Graham Smith
  • Patent number: 8052779
    Abstract: A centrifugal separator device for concurrent separation of solid and/or liquid particles suspended in a gaseous media includes a rotor having a multiplicity of sedimentation members and which is mounted rotatably in a surrounding housing. An intake is provided for the gaseous medium to be cleaned, which leads to a central inlet shaft of the rotor. The housing has an outlet for cleaned gas, which has been freed of solid and/or liquid particles on passage through the sedimentation members in the rotor, and an outlet for the solid and/or liquid particles, which have been deposited on the sedimentation members and then transferred to a side wall of the housing by a centrifugal force. A nozzle is arranged upstream of the sedimentation members in order to supply a liquid to the sedimentation members.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: November 8, 2011
    Assignee: 3Nine AB
    Inventors: Torgny Lagerstedt, Claes Inge, Peter Franzen, Olev Maehans, Martin Sandgren
  • Patent number: 8032078
    Abstract: An interface device for interfacing a set of wayside systems with a radio transmitter includes a plurality of input ports each having at least one input for receiving a signal representing a state of a corresponding wayside system and first and second parallel data paths coupled to the plurality of input ports. Each data path includes input protection circuitry coupled to the inputs of the input ports for preventing short-circuit and open-circuit conditions from triggering a false input state, a multiplexer for selecting between the input port; and a processor for scanning the input ports with the multiplexer to determine the state of current signals appearing at the inputs. In response to determining the state of the current signals appearing at the inputs, the processor generates a message communicating a current state of the wayside systems for delivery to the radio transmitter.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: October 4, 2011
    Assignee: MeteorComm, LLC
    Inventors: Thomas G. Donich, Paul F. Kulik, David B. Kelley, Richard J. Fulthorp, Dale K. Smith
  • Patent number: 8028804
    Abstract: An access panel is shown in the present invention to provide easy and safe access to an attic space or elevated structure. The access panel is fully automatic. During opening, the access panel uses an energizing motor to control the gravitational forces for opening a cover and deploying ladder sections. During closing, the access panel is energized to retract the ladder sections and close the access panel. The motor is energized to close the access panel until a stow latch engages to stow the access panel during non-use. A safety switch is mounted inside the attic space to allow a user to open the panel and extend the ladder should the user be trapped in the attic space.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 4, 2011
    Inventor: Jean-Pierre Lair
  • Patent number: 8027950
    Abstract: A method of file management in an electronic processing system includes defining in the electronic system an electronic file of a selected file type and at least one electronic sub-folder within the electronic file for storing information of a corresponding information type. Roles are defined in the electronic processing system for participants creating and utilizing the electronic file, including a role for an information collector. The information collector is electronically tasked to collect information of the information type, which is uploaded and selectively stored in the sub-folder in the electronic file. Selected participants are allowed to access the electronic file as defined by the corresponding role.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 27, 2011
    Assignee: BNSF Railway Company
    Inventors: Barry P. Wunker, Donald C Wind, Michelle L Shea, Gracie Lauffer
  • Patent number: 8006627
    Abstract: A cooling system for a hydrogen hybrid locomotive having a set of electric traction motors and a hydrogen fuel cell system for providing electric power for driving the traction motors includes a radiator for extracting heat from cooling fluid circulated through the hydrogen fuel cell system by a circulation system. The circulation system includes a bypass valve for bypassing a selected amount of the cooling fluid around the radiator and a radiator output valve for controlling an amount of the cooling fluid passed to the hydrogen fuel cell system from the radiator. A fan system provides air flow across the radiator. A control system selectively sets a position of the radiator output valve and a position of the bypass valve and selectively controls a speed of the fan, as required to control cooling of the hydrogen fuel cell system.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: August 30, 2011
    Assignee: BNSF Railway Company
    Inventors: Arnold R. Miller, Kris S. Hess, Timothy L. Erickson, James L. Dippo
  • Patent number: 7974246
    Abstract: A method for exchanging information within a radio communications system includes establishing communications between radio systems utilizing a carrier sense multiple access mode during a period of lower traffic load on the radio communications system and establishing communications between the radio systems utilizing a time division multiple access mode during a period of higher traffic load on the radio communications system.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: July 5, 2011
    Assignee: MeteorComm, LLC
    Inventors: Richard J. Fulthorp, John F. Cleveland, Peter D. Donich, Thomas G. Donich, Norman R. Shivley, Wipawee “Pam” Siriwongpairat, Dale K. Smith, Robert L. Turnbull
  • Patent number: 7971538
    Abstract: A hydrogen hybrid locomotive including traction motors for moving the locomotive along a set of tracks, a set of batteries for providing electrical power to the traction motors, a hydrogen fuel cell power plant for charging the set of batteries, an air system having a variable speed compressor for providing air flow to the power plant, and a DC to DC converter for managing power distribution from the hydrogen fuel cell power plant to the batteries. A controller determines an amount of current required from the power plant to produce a selected amount of power, determines a stoic operating setpoint for the power plant based on the current required, sets the speed of a compressor within the air system to provide a selected amount of air flow to the power plant for the determined stoic operating setpoint, determines from a resulting actual air flow to the power module available power, and sets an operating setpoint of the DC to DC converter from the determined an available power.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: July 5, 2011
    Assignee: BNSF Railway Company
    Inventors: Arnold R. Miller, Kris S. Hess, Timothy L. Erickson, James L. Dippo