Patents by Inventor John Childs
John Childs 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).
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Patent number: 11859813Abstract: A pulverized solid fuel nozzle tip assembly with a low contact frame for use with a pulverized solid fuel pipe nozzle is described. The pulverized solid fuel nozzle tip assembly has an outer nozzle tip portion adapted to mount in supported relation with the pulverized solid fuel pipe nozzle, and an inner nozzle tip portion adapted for mounting within the outer nozzle tip portion to have secure tiltable movement. The outer nozzle has supporting surfaces that support surfaces of the inner nozzle tip portion to minimize the tilting forces transmitted to the inner nozzle tip portion during normal furnace operation, enhancing the wear resistance of the pulverized solid fuel nozzle tip assembly. The supporting surfaces of the outer nozzle also eliminate stress cracking to the surfaces of the inner nozzle tip portion that can arise due to thermal growth.Type: GrantFiled: December 16, 2022Date of Patent: January 2, 2024Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: John Childs Lewis, Richard Edward Donais, Kevin T. Grzebien
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Publication number: 20230228412Abstract: A nozzle tip for a pulverized solid fuel pipe nozzle of a pulverized solid fuel-fired furnace is provided. The nozzle tip includes an inner nozzle portion and an outer nozzle portion that receives therein the inner nozzle portion. The outer nozzle portion has a lower supporting surface that is configured to support a lower surface of the inner nozzle portion. The outer nozzle portion also includes a plurality of ribs that define therebetween a plurality of flow passages for the passage of air. The ribs, in addition to define the airflow passages, provide bolstering support for the lower supporting surface. The outer nozzle portion is formed from stainless steel.Type: ApplicationFiled: October 1, 2021Publication date: July 20, 2023Inventors: Kevin GRZEBIEN, John Childs LEWIS, Kenneth Richard SMYTH
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Patent number: 11668322Abstract: A turbomachine having a rotor assembly, a stator assembly and a toroidal inductor. The rotor assembly includes an impeller. The inductor is located between the impeller and the stator assembly, and is exposed to an airflow generated by or acting upon the impeller.Type: GrantFiled: April 27, 2016Date of Patent: June 6, 2023Assignee: Dyson Technology LimitedInventors: Andrew Charlton Clothier, Matthew John Childe
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Patent number: 11473594Abstract: A compressor has a rotor assembly having an impeller for generating an airflow through the compressor, a stator core assembly for causing rotation of the impeller, and a diffuser assembly for acting on the airflow generated by the impeller. The diffuser assembly has a first diffuser stage and a second diffuser stage. The first and second diffuser stages are separate components connected to one another by a fastener.Type: GrantFiled: March 12, 2019Date of Patent: October 18, 2022Assignee: Dyson Technology LimitedInventors: Mark Andrew Johnson, Simon Alexander Locke, Matthew John Childe, Cathal Clancy, Vadivel Kumaran Sivashanmugam, Nora Er-Rouhly, Lukasz Andrzej Kowalczyk, Alan Glynn Sanderson, Thomas Richard Stafford, Sarah Elizabeth Elson, Alexander Thomas Wells, Jim Ray Lluisma
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Patent number: 10729218Abstract: A handheld device comprising a motor for generating an airflow through the device, the motor including: a frame for supporting a rotor assembly and a stator assembly, the frame including an inner wall and an outer wall and a plurality of diffuser vanes extending between the inner wall and outer wall; a rotor assembly including a shaft, a magnet, a bearing assembly and an impeller; and a stator assembly including a bobbin, a stator core and a winding wound around the bobbin; the frame being formed of zinc and the impeller being formed of aluminium.Type: GrantFiled: December 12, 2016Date of Patent: August 4, 2020Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Simon Alexander Locke, Martin Richard Harrex
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Patent number: 10648661Abstract: A coal nozzle assembly for a steam generation apparatus comprising an elongated nozzle body having a nozzle tip at one end thereof; said nozzle tip comprising two channels, each channel having curved or buckled flow paths, the nozzle tip further comprising parting means separating the channels from each other, wherein the directions of the flow paths of the channels at their ends distal from the nozzle body enclose an angle between 0° and 90°. This promotes intersecting and shearing the two partial streams outside the nozzle assembly resulting in a better combustion with reduced NOx-emissions.Type: GrantFiled: July 31, 2018Date of Patent: May 12, 2020Assignee: General Electric CompanyInventors: Kevin Michael Howe, John Childs Lewis, Alfred Josef Gwosdz
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Patent number: 10505414Abstract: A rotor core assembly that includes a magnet, a first end cap located at an end of the magnet, a second end cap located at an opposite end of the magnet, and a sleeve that surrounds the magnet and the end caps. The sleeve forms an interference fit with each of the end caps, and an adhesive is located between the magnet and the sleeve. Additionally, a method of manufacturing the rotor core assembly.Type: GrantFiled: March 5, 2014Date of Patent: December 10, 2019Assignee: Dyson Technology LimitedInventors: David Ions, Paul Theo Heyting, Matthew John Childe, David Michael Jones
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Publication number: 20190032914Abstract: A coal nozzle assembly for a steam generation apparatus comprising an elongated nozzle body having a nozzle tip at one end thereof; said nozzle tip comprising two channels, each channel having curved or buckled flow paths, the nozzle tip further comprising parting means separating the channels from each other, wherein the directions of the flow paths of the channels at their ends distal from the nozzle body enclose an angle between 0° and 90°. This promotes intersecting and shearing the two partial streams outside the nozzle assembly resulting in a better combustion with reduced NOx-emissions.Type: ApplicationFiled: July 31, 2018Publication date: January 31, 2019Inventors: Kevin Michael HOWE, John Childs LEWIS, Alfred Josef GWOSDZ
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Patent number: 10071247Abstract: An electronic stimulator device comprises a battery, first and second output ports, and an energy discharge circuit. The energy discharge circuit is coupled to the battery and configured to receive an electrical charge from the battery and deliver the electrical charge through an energy output port. A first switch is connected between the energy output and the first output port. A second switch is connected between the second output port and electrical ground. A third switch is connected between the second output port and the energy output. A fourth switch is connected between the first output port and electrical ground. A controller comprising a processor is configured to actuate the first, second, third and fourth switches between open and close states to deliver a biphasic current pulse between the first and second output ports.Type: GrantFiled: June 21, 2016Date of Patent: September 11, 2018Assignee: Boston Scientific Scimed, Inc.Inventor: Jeffrey John Childs
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Patent number: 9760194Abstract: Embodiments of the present invention generally provide a processing system for a display device having an integrated sensing device. The processing system includes a driver module that includes driver circuitry, the driver module coupled to source lines and sensor electrodes. Each sensor electrode including one or more common electrodes configured for display updating and input sensing. The driver module is configured to select a first display line for display updating during a first display update period, drive the sources lines with first display update signals during the first display update period to update the first display line, drive a first sensor electrode of the plurality of sensor electrodes for capacitive sensing during a non-display update period, and operate the source lines in a restore mode during a restart period, wherein the restart period is after the non-display update period and before a second display update period.Type: GrantFiled: March 2, 2015Date of Patent: September 12, 2017Assignee: SYNAPTICS INCORPORATEDInventors: Jeffrey S. Lillie, John Childs, Marshall J. Bell, Jr., Thomas Mackin
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Patent number: 9662491Abstract: A stimulation therapy device provides an electrical stimulation therapy to branches of the tibial nerve of a patient. The device comprises a support member configured to be worn around the ankle or foot of the patient, first and second pairs of electrodes attached to the support member, and a stimulation circuit attached to the support member. The stimulation circuit is configured to deliver electrical stimulation pulses through the first and second pairs of electrodes.Type: GrantFiled: January 15, 2016Date of Patent: May 30, 2017Inventors: David J. Yonce, John Jason Buysman, Richard A. Lundeen, Jeffrey John Childs
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Patent number: 9611864Abstract: A centrifugal compressor that includes an impeller, a diffuser and a shroud. One of the diffuser and shroud includes a plurality of recesses and the other of the diffuser and shroud includes a plurality of radial vanes. The shroud covers the impeller and diffuser such that each radial vane projects into a respective recess.Type: GrantFiled: February 19, 2010Date of Patent: April 4, 2017Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Peter Lee Crossley
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Patent number: 9576557Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.Type: GrantFiled: January 12, 2015Date of Patent: February 21, 2017Assignee: SYNAPTICS INCORPORATEDInventors: Jeffrey S. Lillie, John Childs, Christopher A. Ludden, Thomas Mackin, Petr Shepelev
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Patent number: 9564778Abstract: A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.Type: GrantFiled: February 19, 2010Date of Patent: February 7, 2017Assignee: Dyson Technologies LimitedInventors: Howard Charles Fulford, Stephen Greetham, Andrew Charlton Clothier, Matthew John Childe
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Publication number: 20160296757Abstract: An electronic stimulator device comprises a battery, first and second output ports, and an energy discharge circuit. The energy discharge circuit is coupled to the battery and configured to receive an electrical charge from the battery and deliver the electrical charge through an energy output port. A first switch is connected between the energy output and the first output port. A second switch is connected between the second output port and electrical ground. A third switch is connected between the second output port and the energy output. A fourth switch is connected between the first output port and electrical ground. A controller comprising a processor is configured to actuate the first, second, third and fourth switches between open and close states to deliver a biphasic current pulse between the first and second output ports.Type: ApplicationFiled: June 21, 2016Publication date: October 13, 2016Inventor: Jeffrey John Childs
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Patent number: 9410442Abstract: A turbomachine having a rotor assembly, a stator assembly and a toroidal inductor. The rotor assembly includes an impeller. The inductor is located between the impeller and the stator assembly, and is exposed to an airflow generated by or acting upon the impeller.Type: GrantFiled: August 24, 2012Date of Patent: August 9, 2016Assignee: Dyson Technology LimitedInventors: Andrew Charlton Clothier, Matthew John Childe
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Publication number: 20160129250Abstract: A stimulation therapy device provides an electrical stimulation therapy to branches of the tibial nerve of a patient. The device comprises a support member configured to be worn around the ankle or foot of the patient, first and second pairs of electrodes attached to the support member, and a stimulation circuit attached to the support member. The stimulation circuit is configured to deliver electrical stimulation pulses through the first and second pairs of electrodes.Type: ApplicationFiled: January 15, 2016Publication date: May 12, 2016Inventors: David J. Yonce, John Jason Buysman, Richard A. Lundeen, Jeffrey John Childs
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Patent number: 9265927Abstract: A stimulation therapy device provides an electrical stimulation therapy to branches of the tibial nerve of a patient. The device comprises a support member configured to be worn around the ankle or foot of the patient, first and second pairs of electrodes attached to the support member, and a stimulation circuit attached to the support member. The stimulation circuit is configured to deliver electrical stimulation pulses through the first and second pairs of electrodes.Type: GrantFiled: September 6, 2012Date of Patent: February 23, 2016Assignee: Astora Women's Health, LLCInventors: David J. Yonce, John Jason Buysman, Richard A. Lundeen, Jeffrey John Childs
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Patent number: 9128713Abstract: Embodiments of the invention generally provide an input device that includes one or more source drivers that are coupled to a display screen. Specifically, one of the source drivers may be coupled to a plurality of source lines (or column lines) on the display screen which the source driver uses to set voltages associated with one or more sub-pixels that determine the color displayed by the pixel. When driving voltages onto subsequent source lines, the input device may precharge the source driver using a latent voltage stored on the source lines. That is, if the source line was previously driven to a particular voltage by the source driver, the input device uses that latent voltage to precharge the output of the source driver to the same voltage. The source driver may then adjust its output to a desired voltage and drive the desired voltage onto the source line and sub-pixel.Type: GrantFiled: January 15, 2013Date of Patent: September 8, 2015Assignee: SYNAPTICS INCORPORATEDInventors: Imre Knausz, Brian Mott, John Childs
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Patent number: 9041685Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.Type: GrantFiled: September 7, 2012Date of Patent: May 26, 2015Assignee: Synaptics IncorpoatedInventors: Jeffrey Lillie, John Childs, Christopher Ludden, Thomas Mackin, Petr Shepelev