Patents by Inventor David Irving

David Irving 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: 11859149
    Abstract: An ionic liquid composed of nitrogen-free cations and aromatic halogen- and boron-free anions is useful as an additive to prolong the service life of hydrocarbonaceous liquids exposed to nitrogen dioxide contamination, and to provide friction and wear reduction.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: January 2, 2024
    Assignee: Infineum International Limited
    Inventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
  • Publication number: 20230139911
    Abstract: A method of limiting the chemical degradation of hydrocarbonaceous liquids due to nitrogen dioxide contamination at elevated temperature comprises the addition thereto of an ionic liquid composed of a cation and a boron- and halogen-free, multi-functional aromatic anion, the ionic liquid serving to inhibit the nitration of hydrocarbonaceous liquid components that initiates degradation.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Applicant: Infineum International Limited
    Inventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
  • Publication number: 20230140105
    Abstract: An ionic liquid composed of nitrogen-free cations and aromatic halogen- and boron-free anions is useful as an additive to prolong the service life of hydrocarbonaceous liquids exposed to nitrogen dioxide contamination, and to provide friction and wear reduction.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Applicant: Infineum International Limited
    Inventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
  • Publication number: 20230139253
    Abstract: An additive composition for limiting the chemical degradation of hydrocarbonaceous liquids due to nitrogen dioxide contamination at elevated temperature comprises the combination of an ionic liquid composed of a cation and a boron- and halogen-free, multi-functional anion and a detergent additive, the combination of ionic liquid and detergent serving to inhibit the nitration of hydrocarbonaceous liquid components that initiates degradation.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Applicant: Infineum International Limited
    Inventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
  • Patent number: 10882478
    Abstract: Devices, systems, and methodologies for providing a comfort system of a transportation vehicle include capturing and assessing movement data of a user. The movement data can include movement data captured upon the user's approach to the transportation vehicle.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: January 5, 2021
    Assignees: VOLKSWAGEN AG, PORSCHE AG, BENTLEY MOTORS LIMITED
    Inventors: Benedict A. Recktenwald, David Irving
  • Publication number: 20200189500
    Abstract: Devices, systems, and methodologies for providing a comfort system of a transportation vehicle include capturing and assessing movement data of a user. The movement data can include movement data captured upon the user's approach to the transportation vehicle.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 18, 2020
    Inventors: Benedict A. RECKTENWALD, David IRVING
  • Patent number: 7339007
    Abstract: A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalkenyl acylating agents are useful per se as additives in lubricating oils, functional fluids, and fuels and also serve as intermediates in the preparation of other products (e.g., succinimides) useful as additives in lubricating oils, functional fluids, and fuels. The presence of the free radical inhibitor during the high temperature reaction results in a reaction product that is low, or substantially free from sediment.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: March 4, 2008
    Assignee: Infineum International Limited
    Inventors: Matthew David Irving, Robert William Shaw, Jeremy Roger Spencer, Jacob Emert
  • Patent number: 7172392
    Abstract: A wind turbine with at least one blade having a pitch axis that is offset laterally so that the blade does not intersect with an axis of rotation of the wind turbine, and a center of mass and an aerodynamic center are offset from the pitch axis in the direction parallel to the axis of rotation of the wind turbine. The blade is arranged so that the blade can pitch towards stall against the action of a resilient device and also so that the centrifugal loading on at least one of the blade and one or more components optionally attached to the blade, acts against the spring in a direction to shed power by pitching the blade towards stall and also so that the torque loading provided by a power conversion device acts to pitch the blade in the opposite direction, so as to reduce the amount of load shedding whenever the power is being extracted from the wind turbine.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: February 6, 2007
    Assignee: Iskra Wind Turbine Manufacturers Ltd.
    Inventors: Michael Andrew Wastling, John Charles Balson, David Irving, Robert James Cann
  • Patent number: 7170212
    Abstract: A permanent magnet electrical machine comprises a first substantially planar member (9, 10) and a second substantially planar member (3) arranged substantially parallel to the first substantially planar member. The first and second members are rotatable relative to each other about a common axis substantially perpendicular to the planes of the first and second members. The first member (9, 10) is provided with an annular array of permanent magnets (7, 8) coaxial with the common axis and configured to provide a substantially axial magnetic field passing through the second member. The second member (3) is provided with a first annular array of flat coils (1) coaxial with the common axis and arranged substantially side-by-side in a first layer and with a second annular array of flat coils (2) coaxial with the common axis and arranged substantially side-by-side in a second layer. The coils (2) of the second array are offset in a circumferential direction relative to the coils (1) of the first array.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: January 30, 2007
    Assignee: Iska Wind Turbines Ltd
    Inventors: John Charles Balson, David Irving, Robert James Cann, Michael Andrew Wastling
  • Publication number: 20050201862
    Abstract: A wind turbine with at least one blade having a pitch axis that is offset laterally so that the blade does not intersect with an axis of rotation of the wind turbine, and a center of mass and an aerodynamic center are offset from the pitch axis in the direction parallel to the axis of rotation of the wind turbine. The blade is arranged so that the blade can pitch towards stall against the action of a resilient device and also so that the centrifugal loading on at least one of the blade and one or more components optionally attached to the blade, acts against the spring in a direction to shed power by pitching the blade towards stall and also so that the torque loading provided by a power conversion device acts to pitch the blade in the opposite direction, so as to reduce the amount of load shedding whenever the power is being extracted from the wind turbine.
    Type: Application
    Filed: February 25, 2002
    Publication date: September 15, 2005
    Inventors: Michael Wastling, John Balson, David Irving, Robert Cann
  • Publication number: 20050029899
    Abstract: A permanent magnet electrical machine comprises a first substantially planar member (9, 10) and a second substantially planar member (3) arranged substantially parallel to the first substantially planar member. The first and second members are rotatable relative to each other about a common axis substantially perpendicular to the planes of the first and second members. The first member (9, 10) is provided with an annular array of permanent magnets (7, 8) coaxial with the common axis and configured to provide a substantially axial magnetic field passing through the second member. The second member (3) is provided with a first annular array of flat coils (1) coaxial with the common axis and arranged substantially side-by-side in a first layer and with a second annular array of flat coils (2) coaxial with the common axis and arranged substantially side-by-side in a second layer. The coils (2) of the second array are offset in a circumferential direction relative to the coils (1) of the first array.
    Type: Application
    Filed: December 2, 2002
    Publication date: February 10, 2005
    Inventors: David Irving, Robert Cann, Michael Wastling
  • Publication number: 20040260032
    Abstract: A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalkenyl acylating agents are useful per se as additives in lubricating oils, functional fluids, and fuels and also serve as intermediates in the preparation of other products (e.g., succinimides) useful as additives in lubricating oils, functional fluids, and fuels. The presence of the free radical inhibitor during the high temperature reaction results in a reaction product that is low, or substantially free from sediment.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 23, 2004
    Inventors: Matthew David Irving, Robert William Shaw, Jeremy Roger Spencer, Jacob Emert
  • Patent number: 3977015
    Abstract: A semiconductor transferred electron device of the kind which includes indium phosphide as a major constituent is provided with a cathode consisting of oxidized silver gallium. The cathode preferably contains 4 times more silver than gallium by weight, and the oxygen content is preferably from 2 to 20 atomic per cent of the gallium content of the cathode. This improved device provides high electrical to microwave conversion efficiencies for a high proportion of devices produced together in any given batch.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: August 24, 1976
    Assignee: British Secretary of State for Defence
    Inventors: Leonard David Irving, James Edward Pattison, Huw David Rees
  • Patent number: D334009
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: March 16, 1993
    Inventors: Mary Irving, David Irving