Patents by Inventor James E. Burrows

James E. Burrows 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).

  • Patent number: 10774805
    Abstract: An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: September 15, 2020
    Assignee: Tenneco Inc.
    Inventors: Kristapher I. Mixell, Yusuf Esmail Neemuchwala, John E. Miller, James D. Lykowski, John Antony Burrows
  • Patent number: 10738588
    Abstract: A boring tool moves having a pitch orientation, a yaw orientation and a roll orientation and is steerable underground using the roll orientation. A maximum drill string curvature is established for steering. The boring tool is advanced over a path segment. An averaged roll characteristic is determined for movement of the boring tool along the path segment. A path segment pitch orientation is established based on at least one measured pitch orientation along the path segment. Using the maximum drill string curvature in combination with the averaged roll characteristic and the path segment pitch orientation, the yaw orientation is determined. The averaged roll characteristic is determined based on a series of incremental roll measurements that are spaced across the path segment. A set of coupled ordinary differential equations is used to characterize movement of the boring tool.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 11, 2020
    Assignee: Merlin Technology Inc.
    Inventors: James W. Burrows, Guenter W. Brune, John E. Mercer
  • Publication number: 20200059073
    Abstract: A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Inventors: John Antony Burrows, John E. Miller, Kristapher I. Mixell, James D. Lykowski
  • Patent number: 10490982
    Abstract: A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: November 26, 2019
    Assignee: Tenneco Inc.
    Inventors: John Antony Burrows, John E. Miller, Kristapher I. Mixell, James D. Lykowski
  • Publication number: 20190353136
    Abstract: An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Inventors: KRISTAPHER I. MIXELL, YUSUF ESMAIL NEEMUCHWALA, JOHN E. MILLER, JAMES D. LYKOWSKI, JOHN ANTONY BURROWS
  • Patent number: 10364788
    Abstract: An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 30, 2019
    Assignee: Tenneco Inc.
    Inventors: Kristapher I. Mixell, Yusuf Esmail Neemuchwala, John E. Miller, James D. Lykowski, John Antony Burrows
  • Publication number: 20190226316
    Abstract: A boring tool moves having a pitch orientation, a yaw orientation and a roll orientation and is steerable underground using the roll orientation. A maximum drill string curvature is established for steering. The boring tool is advanced over a path segment. An averaged roll characteristic is determined for movement of the boring tool along the path segment. A path segment pitch orientation is established based on at least one measured pitch orientation along the path segment. Using the maximum drill string curvature in combination with the averaged roll characteristic and the path segment pitch orientation, the yaw orientation is determined. The averaged roll characteristic is determined based on a series of incremental roll measurements that are spaced across the path segment. A set of coupled ordinary differential equations is used to characterize movement of the boring tool.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Inventors: James W. Burrows, Guenter W. Brune, John E. Mercer
  • Patent number: 4768029
    Abstract: A raster scanned video display for high resolution graphics on to which a graphical cursor can be superimposed. Cursor data corresponding to the next raster line of the image is read out of a data store during the line blanking interval and stored in a fast memory. During scanning of that next raster line the cursor data is combined with the image data. By combining the cursor data with the image data in this way, on a line-by-line basis, storage space requirements in the fast memory are greatly reduced.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: August 30, 1988
    Assignee: International Computers Limited
    Inventor: James E. Burrows
  • Patent number: 4392208
    Abstract: Data processing system having a main processor system and a diagnostic unit. The main processor system may transmit messages selected by itself to the diagnostic unit. It does so by writing information to a predetermined location in a writable microprogram control store. The diagnostic unit loads the address of that location into a reference address register and sets an address comparison circuit to respond only to write accesses. The address comparison circuit then outputs a signal on a line when it detects equivalence between that address and the address used in the control store access, held in an address input register. The output signal acts as an interrupt signal for a microprocessor system which subsequently causes a halt circuit to halt execution of microinstructions in the main processor. It then causes a control circuit 76 to carry out a read access of the control store at the predetermined address, held in an address output register. The data output is received in a data output register.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: July 5, 1983
    Assignee: International Computers Limited
    Inventors: James E. Burrows, Ivan R. Greenaway