Patents by Inventor Christopher A. Julian

Christopher A. Julian 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: 20190262571
    Abstract: A swivel elbow and connector assembly for a patient interface system includes a ring configured to be sealingly secured in an aperture of the patient interface system. The ring includes a first side in an interior of the patient interface system and a second side at an exterior of the patient interface system when the ring is secured in the aperture. The ring also includes a plurality of vents configured to permit flow of gases from the interior to the exterior of the patient interface system. The swivel elbow and connector assembly includes an elbow swivelably secured in the ring. A patient interface system for delivering a flow of breathable gas to a user includes a patient interface structure configured to sealing engage the face of the user. The patient interface structure includes an aperture. A swivel elbow and connector assembly is sealingly secured in the aperture.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Teck FONG, Stephen GRAY, Adam Francis BARLOW, Robert Thomas BURNHAM, Christopher Scott SKIPPER, David Anthony PIDCOCK, Tumul GUPTA, Damien Julian MAZZONE, Jose Ignacio ROMAGNOLI, Christopher Samuel CULLEN
  • Patent number: 10374866
    Abstract: Techniques for improving communications efficiency between pairs of communication nodes running within a computer system are described herein. Potential locations for placing a communication node are evaluated using one or more fitness values wherein the fitness value is based at least in part on one or more system metrics associated with placing a communication node in the potential location. If an improved location is found based on the fitness value, the communication node may be migrated to the new location, thus improving system efficiency.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 6, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Paul William Berg, Christopher Dunn, Alexander Julian Tribble, Tristan Daniel Fries Wilson, Zachary Jared Wiggins
  • Patent number: 10359228
    Abstract: A system and method for liquefaction of a natural gas stream utilizing a plurality of asymmetric parallel pre-cooling circuits. The use of asymmetric parallel cooling circuits allows for greater control over each refrigerant stream during the cooling process and simplifies process control by dedicating heat exchangers to performing similar duties.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 23, 2019
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Adam Adrian Brostow, Fei Chen, Mark Julian Roberts, Christopher Michael Ott
  • Patent number: 10322254
    Abstract: A swivel elbow and connector assembly for a patient interface system includes a ring configured to be sealingly secured in an aperture of the patient interface system. The ring includes a first side in an interior of the patient interface system and a second side at an exterior of the patient interface system when the ring is secured in the aperture. The ring also includes a plurality of vents configured to permit flow of gases from the interior to the exterior of the patient interface system. The swivel elbow and connector assembly includes an elbow swivelably secured in the ring. A patient interface system for delivering a flow of breathable gas to a user includes a patient interface structure configured to sealing engage the face of the user. The patient interface structure includes an aperture. A swivel elbow and connector assembly is sealingly secured in the aperture.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: June 18, 2019
    Assignee: ResMed Limited
    Inventors: Teck Fong, Stephen Gray, Adam Francis Barlow, Robert Thomas Burnham, Christopher Scott Skipper, David Anthony Pidcock, Tumul Gupta, Damien Julian Mazzone, Jose Ignacio Romagnoli, Christopher Samuel Cullen
  • Publication number: 20190159729
    Abstract: Provided is a flex-PCB catheter device that is configured to be inserted into a body lumen. The flex-PCB catheter comprises an elongate shaft, an expandable assembly, a flexible printed circuit board (flex-PCB) substrate, a plurality of electronic components and a plurality of communication paths. The elongate shaft comprises a proximal end and a distal end. The expandable assembly is configured to transition from a radially compact state to a radially expanded state. The plurality of electronic elements are coupled to the flex-PCB substrate and are configured to receive and/or transmit an electric signal. The plurality of communication paths are positioned on and/or within the flex-PCB substrate. The communication paths selectively couple the plurality of electronic elements to a plurality of electrical contacts configured to electrically connect to an electronic module configured to process the electrical signal. The flex-PCB substrate can have multiple layers, including one or more metallic layers.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 30, 2019
    Inventors: Derrick Ren-Yu Chou, Timothy J. Corvi, Marcus Frederick Julian, Darryl Alan Knight, Ricardo David Roman, J. Christopher Flaherty
  • Publication number: 20190154155
    Abstract: An elastomeric seal for use in semiconductor manufacturing apparatus comprising an ink on at least a portion of the upper surface thereof, wherein the ink comprises a barrier material, the barrier material being operable to prevent or reduce degradation of the elastomeric seal from ultraviolet (UV) radiation.
    Type: Application
    Filed: May 6, 2016
    Publication date: May 23, 2019
    Applicant: PRECISION POLYMER ENGINEERING LTD.
    Inventors: Murat GULCUR, Christopher Julian THORNTON, Paul Andrew HAWORTH, John Edward KERWIN
  • Patent number: 10270352
    Abstract: A switching circuit, electrical energy converter, power management unit and energy harvesting system are described. Such apparatus is applicable to energy harvesting applications which involve a variety of transducers, either singly or simultaneously. The transducers may, for example, be photovoltaic, thermoelectric, piezoelectric, or electrodynamic. The described converters operate to convert impedances, voltages and currents. They incorporate inductive energy transfer elements, which are magnetically coupled. Different combinations of these energy transfer elements are used to obtain different conversion ratios, which can be referred to as “gears”. On the input side, having multiple gears enables easier and better matching to a wider variety of energy transducers. On the output side, it enables easier and better accommodation of a wider spread of energy storage voltages and of a wider variety of loads.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: April 23, 2019
    Assignee: Trameto Limited
    Inventors: Laurence Alan Strong, David Huw Davies, Christopher Julian Travis
  • Patent number: 10270585
    Abstract: A hybrid numeric-analog clock synchronizer for establishing a clock or carrier locked to a frequency reference. The clock synchronizer is typically a clock multiplier and a jitter attenuator. The reference may have a low update rate. The synchronizer achieves high jitter rejection, low phase noise and wide frequency range. It can be integrated on chip.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 23, 2019
    Inventor: Christopher Julian Travis
  • Publication number: 20190069763
    Abstract: A medical instrument may comprise a first articulatable segment having a first diameter, and a second articulatable segment having a second diameter smaller than the first diameter, wherein the second articulatable segment is coupled to the first articulatable segment and extends in a distal direction past the first articulatable segment. The instrument may also comprise a first force transmission element coupled to the first articulatable segment and extending in a proximal direction from the first articulatable segment to a first connector portion, the first connector portion being configured to be releasably coupled with a first actuator, and a second force transmission element coupled to the second articulatable segment and extending in a proximal direction from the second articulatable segment to a second connector portion, the second connector portion being configured to be releasably coupled with a second actuator.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Christopher A. JULIAN, Amir BELSON, Aaron W. BROWN, Mark HARASYM, Marc S. KREIDLER, Robert M. OHLINE, Scott J. REINER, Enrique ROMO, Charles E. SWINEHART, Katherine WHITIN
  • Publication number: 20190016476
    Abstract: A docking assembly for unmanned aerial vehicles (UAVs). The docking assembly includes a dock having a shaft. The present invention further includes UAVs. Each of the UAVs include a slot sized such that the shaft may slidably and linearly engage the slot. The shaft of the dock inserts through the slot of the UAVs, thereby docking the UAVs on the dock.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 17, 2019
    Inventor: Christopher Julian Scherz
  • Patent number: 10168783
    Abstract: There is disclosed a method of designing a panel assembly for a vibratory panel device, the assembly comprising a panel which supports vibrations and two or more transducers coupled to the panel to transmit vibrations to or receive vibrations from the panel. The method comprises: obtaining the number of transducers to be used in the assembly and their relative positions; obtaining relationships between drive signals to be applied to the respective transducers to provide a desired effect; determining an optimization criterion for the assembly that depends on the obtained relationships; and determining one or more parameters for the respective transducers that satisfy the optimization criterion. The one or more parameters may be selected from amplitudes of drive signals, spacing, activity, area, position, shape, dimension.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 1, 2019
    Assignee: NVF Tech Ltd
    Inventors: Neil John Harris, Christopher Julian Travis
  • Patent number: 10139918
    Abstract: Embodiments of display control based on dynamic user interactions generally include capturing a plurality of temporally sequential images of the user, or a body part or other control object manipulated by the user, and computationally analyzing the images to recognize a gesture performed by the user. In some embodiments, a scale indicative of an actual gesture distance traversed in performance of the gesture is identified, and a movement or action is displayed on the device based, at least in part, on a ratio between the identified scale and the scale of the displayed movement. In some embodiments, a degree of completion of the recognized gesture is determined, and the display contents are modified in accordance therewith. In some embodiments, a dominant gesture is computationally determined from among a plurality of user gestures, and an action displayed on the device is based on the dominant gesture.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: November 27, 2018
    Assignee: Leap Motion, Inc.
    Inventors: Raffi Bedikian, Jonathan Marsden, Keith Mertens, David Samuel Holz, Maxwell Sills, Matias Perez, Gabriel A. Hare, Ryan Christopher Julian
  • Patent number: 10105036
    Abstract: A connector assembly for controllable articles is described herein. The connector assembly engages force transmission elements used to transmit force from one or more force generators with the force transmission elements used to manipulate a controllable article. Additionally, the connector assembly provides organization thereby simplifying the process of connecting a plurality of elements, usually with a quick, single movement.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 23, 2018
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Christopher A. Julian, Amir Belson, Aaron W. Brown, Mark Harasym, Marc S. Kreidler, Robert M. Ohline, Scott J. Reiner, Enrique Romo, Charles E. Swinehart, Katherine Whitin
  • Publication number: 20180116735
    Abstract: Robotic surgical tools, systems, and methods for preparing for and performing robotic surgery include a memory mounted on the tool. The memory can perform a number of functions when the tool is loaded on the tool manipulator: first, the memory can provide a signal verifying that the tool is compatible with that particular robotic system. Secondly, the tool memory may identify the tool-type to the robotic system so that the robotic system can reconfigure its programming. Thirdly, the memory of the tool may indicate tool-specific information, including measured calibration offsets indicating misalignment of the tool drive system, tool life data, or the like. This information may be stored in a read only memory (ROM), or in a nonvolatile memory which can be written to only a single time. The invention further provides improved engagement structures for coupling robotic surgical tools with manipulator structures.
    Type: Application
    Filed: October 23, 2017
    Publication date: May 3, 2018
    Inventors: Michael J. Tierney, Thomas G. Cooper, Christopher A. Julian, Stephen J. Blumenkranz, Gary S. Guthart, Robert G. Younge
  • Publication number: 20180113513
    Abstract: There is disclosed a method of designing a panel assembly for a vibratory panel device, the assembly comprising a panel which supports vibrations and two or more transducers coupled to the panel to transmit vibrations to or receive vibrations from the panel. The method comprises: obtaining the number of transducers to be used in the assembly and their relative positions; obtaining relationships between drive signals to be applied to the respective transducers to provide a desired effect; determining an optimisation criterion for the assembly that depends on the obtained relationships; and determining one or more parameters for the respective transducers that satisfy the optimisation criterion. The one or more parameters may be selected from amplitudes of drive signals, spacing, activity, area, position, shape, dimension.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 26, 2018
    Inventors: Neil John Harris, Christopher Julian Travis
  • Publication number: 20180069481
    Abstract: A switching circuit, electrical energy converter, power management unit and energy harvesting system are described. Such apparatus is applicable to energy harvesting applications which involve a variety of transducers, either singly or simultaneously. The transducers may, for example, be photovoltaic, thermoelectric, piezoelectric, or electrodynamic. The described converters operate to convert impedances, voltages and currents. They incorporate inductive energy transfer elements, which are magnetically coupled. Different combinations of these energy transfer elements are used to obtain different conversion ratios, which can be referred to as “gears”. On the input side, having multiple gears enables easier and better matching to a wider variety of energy transducers. On the output side, it enables easier and better accommodation of a wider spread of energy storage voltages and of a wider variety of loads.
    Type: Application
    Filed: September 4, 2017
    Publication date: March 8, 2018
    Inventors: Laurence Alan Strong, David Huw Davies, Christopher Julian Travis
  • Patent number: 9880625
    Abstract: There is disclosed a method of designing a panel assembly for a vibratory panel device, the assembly comprising a panel which supports vibrations and two or more transducers coupled to the panel to transmit vibrations to or receive vibrations from the panel. The method comprises: obtaining the number of transducers to be used in the assembly and their relative positions; obtaining relationships between drive signals to be applied to the respective transducers to provide a desired effect; determining an optimisation criterion for the assembly that depends on the obtained relationships; and determining one or more parameters for the respective transducers that satisfy the optimisation criterion. The one or more parameters may be selected from amplitudes of drive signals, spacing, activity, area, position, shape, dimension.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 30, 2018
    Assignee: NVF Tech Ltd.
    Inventors: Neil John Harris, Christopher Julian Travis
  • Publication number: 20170373826
    Abstract: A hybrid numeric-analog clock synchronizer, for establishing a clock or carrier locked to a timing reference. The clock may include a framing component. The reference may have a low update rate. The synchronizer achieves high jitter rejection, low phase noise and wide frequency range. It can be integrated on chip. It may comprise a numeric time-locked loop (TLL) with an analog phase-locked loop (PLL). Moreover a high-performance number-controlled oscillator (NCO), for creating an event clock from a master clock according to a period control signal. It processes edge times rather than period values, allowing direct control of the spectrum and peak amplitude of the justification jitter. Moreover a combined clock-and-frame asynchrony detector, for measuring the phase or time offset between composite signals. It responds e.g. to event clocks and frame syncs, enabling frame locking with loop bandwidths greater than the frame rate.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 28, 2017
    Inventor: Christopher Julian Travis
  • Patent number: 9768949
    Abstract: A hybrid numeric-analog clock synchronizer, for establishing a clock or carrier locked to a timing reference. The clock may include a framing component. The reference may have a low update rate. The synchronizer achieves high jitter rejection, low phase noise and wide frequency range. It can be integrated on chip. It may comprise a numeric time-locked loop (TLL) with an analog phase-locked loop (PLL). Moreover a high-performance number-controlled oscillator (NCO), for creating an event clock from a master clock according to a period control signal. It processes edge times rather than period values, allowing direct control of the spectrum and peak amplitude of the justification jitter. Moreover a combined clock-and-frame asynchrony detector, for measuring the phase or time offset between composite signals. It responds e.g. to event clocks and frame syncs, enabling frame locking with loop bandwidths greater than the frame rate.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: September 19, 2017
    Inventor: Christopher Julian Travis
  • Patent number: D862394
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 8, 2019
    Assignee: Osram Sylvania Inc.
    Inventors: Alfonso Julian Hernandez, Christopher Anthony Bonner