Patents by Inventor Thomas A. Hamilton

Thomas A. Hamilton 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: 20130327430
    Abstract: An improvement in a vapor recovery line in the form of a vortex shedding flow meter installable within such vapor recovery line to monitor the flow rate of vapor being returned through the vapor recovery line, such flow meter including a housing having an inlet flange with an associated inlet connectable to the upstream portion of the vapor recovery line, an outlet flange with an outlet connectable to the downstream portion of the vapor recovery line, a housing for a passageway extending between the inlet and outlet, with a vortex strut extending into the passageway nearer the outlet to generate shed flow vortices and a transmitter-receiver transducer pair positioned nearer the outlet to subject the shed vortices to a sonic beam to effect modulation thereof, and an electronics package within an electronic housing portion for determining from such modulation the flow rate of the vapor passing through the vapor recovery line.
    Type: Application
    Filed: April 30, 2013
    Publication date: December 12, 2013
    Inventors: Paul Pitney, David Medin, Thomas Hamilton, Mitchell Thomas
  • Publication number: 20130211613
    Abstract: A method and system for using smart bulbs is disclosed. One aspect of certain embodiments includes providing applications to both the consumer and the utility to monitor and control the bulbs and provide an audit trail.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 15, 2013
    Inventors: Robert M. Praske, Stephen R. Rumbaugh, Grant E. Hardesty, Thomas A. Hamilton
  • Patent number: 8264210
    Abstract: A method and apparatus to regulate voltage used to power an ASIC comprising an ASIC having a signal source and a modulator. The modulator establishes a characteristic of a signal created by the signal source to indicate a voltage level to be used to power the ASIC. The signal is communicated to a voltage regulator to apply an optimal voltage to the ASIC.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: September 11, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Mehran Ataee, Udupi Harisharan, Jun Qian, Thomas A. Hamilton, Senthil Somasundaram
  • Patent number: 8051346
    Abstract: Systems, methods, and other embodiments associated with programmable application specific integrated circuit (ASIC) fault injection are described. One example ASIC includes a serializer de-serializer (SERDES). The example ASIC may also include logics to process data in the ASIC. At least one of the logics either receives data from the SERDES and/or provides data to the SERDES. The example ASIC may also include an embedded fault injection logic (EFIL) to control injection of a fault to a path (e.g., data, control) associated with at least one of the logics. The example ASIC may also include an embedded set of multiplexers (ESOMs) controlled by the EFIL. The ESOMs are controllable by the EFIL to inject a fault signal to the data path.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: November 1, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Senthil Somasundaram, Jun Qian, Paul Chang, Thomas A. Hamilton
  • Publication number: 20110081277
    Abstract: A heat exchanger for a regenerative thermal oxidiser is described. The heat exchanger has a heat exchange bed that is disposed within a housing. The heat exchange bed is disposed parallel to the longest axis of the housing. A cavity is formed at either side of the heat exchange bed. Channels in the heat exchange bed link the two cavities. Because the heat exchange bed is disposed parallel to the longest axis of the housing, the area of the heat exchange bed facing the cavities is maximised, and the length of the channels is minimised, this reduces the pressure required to drive gas through the heat exchanger.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Inventors: Thomas Hamilton Balon, JR., Neil Butler
  • Publication number: 20100218058
    Abstract: Systems, methods, and other embodiments associated with programmable application specific integrated circuit (ASIC) fault injection are described. One example ASIC includes a serializer de-serializer (SERDES). The example ASIC may also include logics to process data in the ASIC. At least one of the logics either receives data from the SERDES and/or provides data to the SERDES. The example ASIC may also include an embedded fault injection logic (EFIL) to control injection of a fault to a path (e.g., data, control) associated with at least one of the logics. The example ASIC may also include an embedded set of multiplexers (ESOMs) controlled by the EFIL. The ESOMs are controllable by the EFIL to inject a fault signal to the data path.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 26, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Senthil SOMASUNDARAM, Jun QIAN, Paul CHANG, Thomas A. HAMILTON
  • Publication number: 20100090743
    Abstract: A method and apparatus to regulate voltage used to power an ASIC comprising an ASIC having a signal source and a modulator. The modulator establishes a characteristic of a signal created by the signal source to indicate a voltage level to be used to power the ASIC. The signal is communicated to a voltage regulator to apply an optimal voltage to the ASIC.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 15, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Mehran Ataee, Udupi Harisharan, Jun Qian, Thomas A. Hamilton, Senthil Somasundaram
  • Patent number: 7542483
    Abstract: Systems and methods for employing asynchronous transceivers in synchronous data communications. For example, a 10 Gigabit Ethernet transceiver may be used to support SONET/SDH communications with or without G.709 coding. Such a transceiver is clocked with a recovered clock signal when a received synchronous signal is available and with a locally generated clock when no such remotely generated signal is available.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: June 2, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Roberto Gianella, Marco De Angeli, Marco Portinari, Thomas Hamilton
  • Patent number: 7488828
    Abstract: 4-Trifluoromethyl-2(1H)-pyridinone is prepared by reaction of 4-alkoxy-1,1,1-trifluorobut-3-en-2-one or 4,4-dialkoxy-1,1,1-trifluorobutan-2-one with a trialkyl phosphonoacetate followed by cyclization.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: February 10, 2009
    Assignee: Dow AgroSciences LLC
    Inventors: Christopher Thomas Hamilton, Michael Frederick Gullo, Michael Allen Gonzalez, Gary Alan Roth, David Bruce Gorman, Joachim Gebhardt, Norbert Götz, Hagen Jaedicke, Guido Mayer, Michael Rack
  • Patent number: 7339058
    Abstract: The N-arylsulfilimine-catalyzed coupling of aromatic sulfonyl chlorides with N-([1,2,4]triazolopyrimidin-2-yl)amines to form N-([1,2,4]triazolo-pyrimidin-2-yl)aryl sulfonamides is improved by the selection of 3-picoline or 3,5-lutidine as the base.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: March 4, 2008
    Assignee: Dow AgroSciences LLC
    Inventor: Christopher Thomas Hamilton
  • Publication number: 20070145234
    Abstract: An auto darkening eye protection device including a shutter assembly, a control circuit, and a power supply. The control circuit includes a sensing circuit for sensing the occurrence of welding, and a delivery circuit to provide signals to the shutter assembly to cause the shutter assembly to transition to the dark state. The power supply supplying power to the control circuit and the delivery circuit. The power supply including a power regulation circuit, and a solar power supply supplying electrical power to the power regulation circuit and the sensing circuit. The power regulation circuit limiting the voltage of the solar power supply to a predetermined voltage to provide a stable reference voltage.
    Type: Application
    Filed: February 19, 2007
    Publication date: June 28, 2007
    Inventor: Thomas Hamilton
  • Patent number: 7191265
    Abstract: A printed circuit board (PCB) may be used in a first mode where boundary scan techniques are used to externally program and/or test devices on the PCB, or a second mode where an internal source programs devices using boundary scan techniques. In one implementation, there is also additional flexibility to include or skip devices in a boundary scan chain and to accommodate non-scan related functions for pins used for scanning. These various modes of operation may be selected by activating and deactivating buffers.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 13, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Marco De Angeli, Loc Thi Xuan Dang, Gregory Dupree, Roberto Gianella, Thomas Hamilton, Steven Lowe, Marco Portinari
  • Patent number: 7180993
    Abstract: A distributed telephone answering system has intelligence distributed to a plurality of workstations. Each workstation may connect to a plurality of long distance telephone networks. Also, each workstation is controlled by a central controller. A central resopurce such as a database of call context information may be accessed by each workstatin. A workstation may support one or more human users.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: February 20, 2007
    Assignee: Cisco Technology, Inc.
    Inventor: Thomas Hamilton
  • Publication number: 20060180738
    Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.
    Type: Application
    Filed: April 10, 2006
    Publication date: August 17, 2006
    Inventor: Thomas Hamilton
  • Publication number: 20060170157
    Abstract: An apparatus and a method of producing a decorative image are provided. The apparatus may include a rotatable platform, an upstanding wall extending around a perimeter of the platform, and an illumination source configured to illuminate the platform. The platform may secure an activity surface, and a motor may be coupled to the platform to rotate the platform. The illumination source may be an ultraviolet illumination source, may emit intermittent illumination, and may be part of a stroboscopic illumination device. A controller may be operatively coupled to the illumination source, and may cause the illumination source to illuminate the rotatable platform at a first strobe rate and at a second strobe rate. The controller may also cause the motor to rotate the platform. The method may include rotating a surface, receiving decorations on the rotating surface, and illuminating the rotating surface with a stroboscopic illumination device.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 3, 2006
    Inventors: Paul Weingard, Thomas Hamilton
  • Publication number: 20060138302
    Abstract: An auto darkening eye protection device including a shutter assembly, a light sensing circuit, a control circuit and a power source. The shutter assembly is adjustable to a plurality of shade levels. The phototransistor of the light sensing circuit senses light from a welding arc and provides an output of the light sensing circuit indicative of the shade level at which the shutter assembly should be operated. The phototransistor is configured for surface mount and has an external base connection connected to the base of the phototransistor. The control circuit is configured to receive the output from the light sensing circuit and provide a drive signal to the shutter assembly responsive to said output, drives the shutter assembly to one of said plurality of shade levels.
    Type: Application
    Filed: February 27, 2006
    Publication date: June 29, 2006
    Inventor: Thomas Hamilton
  • Publication number: 20060114832
    Abstract: A communication node and corresponding method for processing data communication passing through the node between a first data network and a second data network is described. The method includes detecting an event associated with data communication arriving at the node from the first data network, and determining whether the data communication is to be suspended for service at the node based on the detected event. Suspended data communication is processed based on information in the data communication. Return data communication arriving at the node from the second data network in response to the processed data communication from the first data network is detected. The detected return data communication is allowed to pass through the node without processing the detected return data communication.
    Type: Application
    Filed: January 12, 2006
    Publication date: June 1, 2006
    Inventors: Thomas Hamilton, Chuanfei Chen, Kenneth Descoteaux, Clifford Atwood
  • Patent number: 6970555
    Abstract: An agent workstation in a computer-telephony system is controlled to provide a fault tolerance technique. A telephony device driver in the workstation is controlled by a server process in the workstation. A first client process interfaces a controller to the server process. The controller is also interfaced to the server process by a second client process, the second client process serving as an alternate interface between the controller and the server process in the event of failure by the first client process. Control of the server process by the controller is transferred from the first client process to the second client process in the event of failure by the first client process.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 29, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: Thomas Hamilton
  • Publication number: 20050253057
    Abstract: An auto darkening eye protection device comprising a shutter assembly adjustable between a clear state and a dark state and a control circuit. The control circuit is provided with a microcontroller, a delivery circuit, a sensing circuit and a weld detect circuit. The microcontroller is switchable between a sleep mode and a wake-up mode. The delivery circuit outputs a dark state drive signal to the shutter assembly to switch the shutter assembly from the clear state to the dark state upon enablement of the delivery circuit. The sensing circuit senses the occurrence of a welding arc and provides an output indicative of the occurrence of the welding arc. The weld detect circuit receives the output of the sensing circuit.
    Type: Application
    Filed: May 5, 2005
    Publication date: November 17, 2005
    Inventors: Thomas Hamilton, Barry Scott
  • Patent number: D550385
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: September 4, 2007
    Assignee: Hasbro, Inc.
    Inventors: Thomas Hamilton, Paul Weingard