Patents by Inventor David Raybone

David Raybone 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).

  • Plasma assisted reactor
    Patent number: 7074370
    Abstract: A plasma assisted reactor for the removal of carbonaceous combustion products or for simultaneous removal of carbonaceous products and nitrogen oxides from the exhaust emissions from an internal combustion engine, wherein the reactor includes a gas permeable bed made at least primarily of active materials comprising perovskite or vanadate.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: July 11, 2006
    Assignee: Accentus PLC
    Inventors: David Leslie Segal, David Raybone, James Timothy Shawcross, Michael Inman
  • Treatment of gaseous emissions
    Patent number: 7067092
    Abstract: A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: June 27, 2006
    Assignee: Accentus PLC
    Inventors: Stephen Ivor Hall, David Raybone, Fiona Winterbottom, David Leslie Segal, James Timothy Shawcross, Ross Alexander Morgan, Anthony Robert Martin, Michael Inman
  • Power supply for processing of gaseous media
    Patent number: 7025939
    Abstract: A reactor (1) particularly for the plasma treatment of internal combustion engine exhaust gases, in which a power supply (10) and a reactor bed (2) of the dielectric barrier discharge type are connected directly and enclosed in an earthed metal chamber (17) which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: April 11, 2006
    Assignee: Accentus Plc
    Inventors: Stephen Ivor Hall, Michael Inman, Anthony Robert Martin, David Raybone, David Michael Weeks, David Leslie Segal
  • Plasma assisted catalytic treatment of gases
    Patent number: 7011796
    Abstract: A catalytic material for the plasma-assisted treatment of the exhaust gases from internal combustion engines, consisting of an activated alumina, which contains silver or molybdena (MoO3). For silver doped alumina, a preferred silver concentration is between 0.1% and 5% by weight. The preparation and use of silver doped alumina material also is described.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: March 14, 2006
    Assignee: Accentus plc
    Inventors: David Raybone, James Timothy Shawcross
  • Reactor for plasma treatment of gases
    Patent number: 6994830
    Abstract: In a non-thermal plasma reactor (300), at least a component of the active material (320) is selected or modified to provide the capability to adsorb or trap a predetermined chemical species in the gas flow thereby to increase the effective residence time of said species relative to the residence time of unadsorbed species in the gas flow.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: February 7, 2006
    Assignee: Accentus plc
    Inventors: David Raybone, James Timothy Shawcross, Anthony Robert Martin, Suzanne Elizabeth Thomas
  • Process and apparatus for removing NOx from engine exhaust gases
    Patent number: 6936232
    Abstract: A method and apparatus for removing nitrogen oxides from internal combustion engine exhaust emissions consisting of the operations of contacting the exhaust emissions with a non-thermal plasma (1) and a silver doped alumina catalyst (2) and then an indium-doped zeolite catalyst (3).
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: August 30, 2005
    Assignee: Accentus PLC
    Inventors: Robert Frew Gillespie, David Raybone, James Timothy Shawcross
  • Vehicle power supply system
    Patent number: 6833119
    Abstract: A power supply and control system for a motor vehicle incorporating a plasma-assisted reactor for treatment of exhaust emissions and including a power source for supplying first and second output voltages.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: December 21, 2004
    Assignee: Accentus PLC
    Inventors: Michael Inman, David Raybone, James Timothy Shawcross
  • Treatment of gaseous emissions
    Publication number: 20040219084
    Abstract: A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.
    Type: Application
    Filed: October 29, 2003
    Publication date: November 4, 2004
    Applicant: Accentus plc.
    Inventors: Stephen Ivor Hall, David Raybone, Fiona Winterbottom, David Leslie Segal, James Timothy Shawcross, Ross Alexander Morgan, Anthony Robert Martin, Michael Inman
  • Non-thermal plasma reactor
    Publication number: 20040208804
    Abstract: The space between parallel electrode plates (12, 13) of the reactor is dimensioned to make it possible to produce plasma at reasonable applied potential within the gas passages (15) of a monolithic substrate, such as a wallflow filter, in a slice (11) positioned between the electrode plates (12, 13).
    Type: Application
    Filed: April 7, 2004
    Publication date: October 21, 2004
    Inventors: Stephen Ivor Hall, James Timothy Shawcross, Roy McAdams, David Leslie Segal, Michael Inman, Keith Morris, David Raybone, John Stedman
  • Plasma assisted reactor
    Publication number: 20040022701
    Abstract: A plasma assisted reactor for the removal of carbonaceous combustion products or for simultaneous removal of carbonaceous combustion products and nitrogen oxides from the exhaust emissions from an internal combustion engine, wherein the reactor includes a gas permeable bed made at least primarily of an active material having the general formula A1-xA1xB1-yB1yO3 or MxM11-xVO3 or M4V2O7.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 5, 2004
    Inventors: David Leslie Segal, David Raybone, James Timothy Shawcross, Michael Inman
  • Process and apparatus for removing nox from engine exhaust gases
    Publication number: 20030180196
    Abstract: A method and apparatus for removing nitrogen oxides from internal combustion engine exhaust emissions consisting of the operations of contacting the exhaust emissions with a non-thermal plasma (1) and a silver doped alumina catalyst (2) and then an indium-doped zeolite catalyst (3).
    Type: Application
    Filed: February 6, 2003
    Publication date: September 25, 2003
    Inventors: Robert Frew Gillespie, David Raybone, James Timothy Shawcross
  • Gas purification device
    Patent number: 6548027
    Abstract: A reactor particularly for the plasma treatment of internal combustion engine exhaust gases, in which a power supply and reactor bed are connected directly and enclosed in an earthed metal chamber which both isolates the high voltage power supply and acts as a Faraday cage preventing the emission of electromagnetic radiation from the power supply or plasma.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: April 15, 2003
    Assignee: Accentus
    Inventors: Stephen Ivor Hall, Michael Inman, David Raybone, David Michael Weeks
  • Plasma assisted catalytic treatment of gases
    Publication number: 20030066285
    Abstract: A catalytic material for the plasma-assisted treatment of the exhaust gases from internal combustion engines, consisting of an activated alumina, which contains silver or molybdena (MoO3). For silver doped alumina, a preferred silver concentration is between 0.1% and 5% by weight. The preparation and use of silver doped alumina material also is described.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 10, 2003
    Inventors: David Raybone, James Timothy Shawcross
  • Plasma gas processing
    Patent number: 6126779
    Abstract: A plasma enhanced gas reactor including a reaction chamber having a pair of field-enhancing electrodes each of which has an axial passage through it by one of which a reactant gas is admitted to the reaction chamber, and by the other of which reaction products are removed from the reaction chamber.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 3, 2000
    Assignee: AEA Technology PLC
    Inventors: Robert Frew Gillespie, Stephen Ivor Hall, David Raybone, Fiona Winterbottom
  • Detection of volatile substances
    Patent number: 6012326
    Abstract: An apparatus for detecting the presence of volatile substances in a gaseous medium, including apparatus for producing within a sensor chamber a localised electric field the energy density of which is sufficient to excite the gaseous medium to a plasma condition, and apparatus for detecting changes in a parameter of the plasma due to the presence of the volatile substances in the gaseous medium.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: January 11, 2000
    Assignee: AEA Technology plc
    Inventors: David Raybone, Fiona Winterbottom, Robert Frew Gillespie, Stephen Ivor Hall
  • Gas sterilization
    Patent number: 5512244
    Abstract: A method of sterilising objects including the operations of activating a gaseous medium, ensuring that the activated medium is substantially free of charged species and exposing the object to be sterilised to the activated gaseous medium for a period sufficient to ensure that the object is sterilised.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: April 30, 1996
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Christopher N. Griffiths, David Raybone
  • Gas activation
    Patent number: 5503807
    Abstract: An apparatus for producing chemically active species by passing a precursor gaseous medium through a plasma at pressures of at least 50 millibars is described.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: April 2, 1996
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Christopher N. Griffiths, David Raybone, Keith H. Bayliss, John Stedman
  • Exhaust gas purification
    Patent number: 5440876
    Abstract: A method of removing particulate and other materials from the exhaust gases from an internal combustion engine in which the exhaust gas is passed through a bed of charged ferro-electric materials. Three forms of apparatus for carrying out the method are described.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: August 15, 1995
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Keith H. Bayliss, Stephen I. Hall, David Raybone
  • Removal of organic materials from a gas
    Patent number: 5340450
    Abstract: A method of and apparatus for removing organic material from a gas. The method comprises the operation of subjecting the gas to pulses of circularly polarised microwave radiation and the apparatus comprises a reaction chamber through which the gas can be passed, means for generating circularly polarised microwave radiation and means for applying the circularly polarised microwave radiation to the gas in the reaction chamber.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: August 23, 1994
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Christopher N. Griffiths, David Raybone, Keith H. Bayliss