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).
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Patent number: 11859149Abstract: 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: GrantFiled: October 26, 2022Date of Patent: January 2, 2024Assignee: Infineum International LimitedInventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
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Publication number: 20230139911Abstract: 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: ApplicationFiled: October 26, 2022Publication date: May 4, 2023Applicant: Infineum International LimitedInventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
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Publication number: 20230140105Abstract: 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: ApplicationFiled: October 26, 2022Publication date: May 4, 2023Applicant: Infineum International LimitedInventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
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Publication number: 20230139253Abstract: 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: ApplicationFiled: October 26, 2022Publication date: May 4, 2023Applicant: Infineum International LimitedInventors: David Robert Coultas, Matthew David Irving, Nathan Hollingsworth, Adam Greer, Christopher Hardacre
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Patent number: 10882478Abstract: 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: GrantFiled: December 18, 2018Date of Patent: January 5, 2021Assignees: VOLKSWAGEN AG, PORSCHE AG, BENTLEY MOTORS LIMITEDInventors: Benedict A. Recktenwald, David Irving
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Publication number: 20200189500Abstract: 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: ApplicationFiled: December 18, 2018Publication date: June 18, 2020Inventors: Benedict A. RECKTENWALD, David IRVING
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Patent number: 7339007Abstract: 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: GrantFiled: June 20, 2003Date of Patent: March 4, 2008Assignee: Infineum International LimitedInventors: Matthew David Irving, Robert William Shaw, Jeremy Roger Spencer, Jacob Emert
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Patent number: 7172392Abstract: 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: GrantFiled: February 25, 2002Date of Patent: February 6, 2007Assignee: Iskra Wind Turbine Manufacturers Ltd.Inventors: Michael Andrew Wastling, John Charles Balson, David Irving, Robert James Cann
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Patent number: 7170212Abstract: 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: GrantFiled: December 2, 2002Date of Patent: January 30, 2007Assignee: Iska Wind Turbines LtdInventors: John Charles Balson, David Irving, Robert James Cann, Michael Andrew Wastling
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Publication number: 20050201862Abstract: 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: ApplicationFiled: February 25, 2002Publication date: September 15, 2005Inventors: Michael Wastling, John Balson, David Irving, Robert Cann
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Publication number: 20050029899Abstract: 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: ApplicationFiled: December 2, 2002Publication date: February 10, 2005Inventors: David Irving, Robert Cann, Michael Wastling
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Publication number: 20040260032Abstract: 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: ApplicationFiled: June 20, 2003Publication date: December 23, 2004Inventors: Matthew David Irving, Robert William Shaw, Jeremy Roger Spencer, Jacob Emert
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Patent number: 3977015Abstract: 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: GrantFiled: March 31, 1975Date of Patent: August 24, 1976Assignee: British Secretary of State for DefenceInventors: Leonard David Irving, James Edward Pattison, Huw David Rees
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Patent number: D334009Type: GrantFiled: March 27, 1991Date of Patent: March 16, 1993Inventors: Mary Irving, David Irving