Patents Examined by Francis C Campanell
  • Patent number: 11365777
    Abstract: A friction material comprising a Fe part; a coating layer formed over a surface of the Fe part; and a friction part formed on a surface of at least a part of the coating layer wherein: the coating layer comprises a first coating layer and a second coating layer in order from Fe part side, the first coating layer is constituted of an alloy containing Cu, Ni and Fe such that Fe content be not less than 10 atom %, the second coating layer is constituted of an alloy containing Cu and Ni, or an alloy containing Cu, Ni and Fe such that Fe content be less than 10 atom %, an average thickness of the first coating layer is not less than 1.0 ?m and not more than 6.0 ?m; and an average thickness of the second coating layer is not less than 9.5 ?m and not more than 24.0 ?m.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: June 21, 2022
    Assignee: TUNGALOY CORPORATION
    Inventor: Mitsuo Kamei
  • Patent number: 11359042
    Abstract: The present invention relates to copolymers, to a method for the preparation of these copolymers, to the use of these copolymers for reducing wear in a lubricant composition, to lubricant compositions comprising these copolymers, and to the use of these lubricant compositions as an automatic transmission fluid, a continuously variable transmission fluid, an engine oil, a gear oil, or a hydraulic oil.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: June 14, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Sofia Sirak, Dmitriy Shakhvorostov, Ines Berwing, Denise Bingel
  • Patent number: 11352582
    Abstract: A lubricant composition comprising an oil of lubricating viscosity and 0.01 to 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, exhibits good antiwear performance. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 7, 2022
    Assignee: The Lubrizol Corporation
    Inventors: Jamal Kassir, William R. S. Barton, Paul E. Adams, Lisa Blanazs
  • Patent number: 11345873
    Abstract: New ashless TBN molecules are synthesized, and lubricant compositions containing them, boost the total base number. The lubricant compositions further tested for ASTM D6594 copper corrosion test meets ASTM limits.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: May 31, 2022
    Assignee: Valvoline Licensing and Intellectual Property LLC
    Inventors: Rajkumar Rajule, Jesse Dambacher
  • Patent number: 11339346
    Abstract: The invention is related to a composition for use in hydraulic systems of an aircraft. The composition typically comprises an adipic acid-based polyester in a phosphate ester base stock substantially consisting of trialkyl phosphates.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 24, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Stefan Karl Maier, Nicolai Kolb, Michael Neusius
  • Patent number: 11332688
    Abstract: The present disclosure relates to an anti-wear, anti-friction and stably-dispersed lubricating oil or grease, and the anti-wear, anti-friction and stably-dispersed lubricating oil or grease includes a main component of a lubricating oil or grease and a long carbon chain-grafted sulfonated graphene, the preparation method of which includes mixing a main component of a lubricating oil or grease with a long carbon chain-grafted sulfonated graphene, stirring and dispersing the mixture to obtain the product. The lubricating oil or grease in the present disclosure can significantly improve the long-term dispersion stability and dispersion stability in a complex environment by adding a long carbon chain-grafted sulfonated graphene in the main component, and at the same time can significantly improve the friction coefficient, which can significantly improve the anti-wear and anti-friction properties of the lubricating oil or grease, reduce the diameter of wear scars, and reduce the wear of copper and iron.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: May 17, 2022
    Assignees: GUANGXI LIUGONG MACHINERY CO., LTD., GUANGXI TENGZHI INVESTMENT CO., LTD.
    Inventors: Bo Lin, Jinqiong Luo, Li Zhang, Xiaona Wan, Mingzhi Lin, Wei Luo, Zhiheng Feng, Hong Chen
  • Patent number: 11326123
    Abstract: The present disclosure relates to a durable lubricating fluid for an electric motor or hybrid-electric motor. The disclosed technology relates to a durable lubricating fluid comprising an oil of lubricating viscosity, a thiadiazole or derivative thereof, and an amine salt of a phosphoric acid.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: May 10, 2022
    Assignee: Afton Chemical Corporation
    Inventors: Atanu Adhvaryu, Christopher Cleveland, Yungwan Kwak
  • Patent number: 11319504
    Abstract: An engine oil additive includes carbon nanotubes and boron nitride particulates dispersed within a fluid. The additive is configured to be mixed with a quantity of oil such that the quantity of oil has a concentration from 0.05 to 0.5 grams of carbon nanotubes and of boron nitride particulates per quart of oil to improve the lubricity of the oil. The additive improves the horsepower and torque of the engine while reducing fuel consumption. The carbon nanotubes have an —OH functionalized exterior surface. The carbon nanotubes have a diameter from 1 nanometer to 50 nanometers and have a length from 1 micron to 1000 microns. The boron nitride particulates are hex-boron nitride structures having an average size from 30 nanometers to 500 nanometers.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: May 3, 2022
    Assignees: Novum Nano LLC, South Dakota Board of Regents
    Inventors: Craig Bailey, Greg Christensen, Haiping Hong
  • Patent number: 11319503
    Abstract: The invention concerns additive compositions obtained by mixing at least two thermoassociative and exchangeable compounds and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a lubricating composition obtained by mixing at least one lubricating base oil, at least two thermoassociative and exchangeable compounds, and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a method for adjusting the viscosity of a lubricating composition obtained by mixing at least one lubricating base oil and at least two thermoassociative and exchangeable compounds; and the use of a boronic ester compound to adjust the viscosity of a lubricating composition.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 3, 2022
    Assignees: TOTAL MARKETING SERVICES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
    Inventors: Thibault Derouineau, Fanny Briand, Gregory Descroix, Renaud Nicolay
  • Patent number: 11312918
    Abstract: A transmission fluid composition contains a major amount of a lubricating oil basestock, and a minor amount of an additive package comprising: (i) a mixture comprising two or more phosphites and/or phosphates; (ii) one or more thioester compounds; (iii) one or more zinc dihydrocarbyl dithiophosphate compounds; and (iv) one or more oil-soluble or dispersible molybdenum-containing compounds. Such a transmission fluid may be used for controlling and/or reducing wear, e.g., in a manual transmission.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: April 26, 2022
    Assignee: Infineum International Limited
    Inventors: Dirk Schwaebisch, David Gillot
  • Patent number: 11312917
    Abstract: Provided is a mineral base oil satisfying the following requirements (I) to (III): Requirement (I): a kinematic viscosity at 100° C. is 2 mm2/s or more and less than 7 mm2/s; Requirement (II): a viscosity index is 100 or more; and Requirement (III): a temperature gradient ?|?*| of complex viscosity between two temperature points ?10° C. and ?25° C. is 60 Pa·s/° C. or less as measured with a rotary rheometer under conditions at an angular velocity of 6.3 rad/s and a strain amount of 0.1 to 100%. The foregoing mineral base oil can become a lubricating oil composition having desirable low-temperature viscosity characteristics, including low-temperature fuel consumption and low-temperature engine start-up performance, and also having excellent high-temperature piston detergency.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 26, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Moritsugu Kasai, Norihiro Kuroda, Hisao Anzai
  • Patent number: 11299567
    Abstract: This application relates to copolymer compositions and copolymerization processes, as well as to lubricating oil compositions comprising such copolymer compositions as viscosity index improvers, and base oil. The copolymer compositions may be made using two different metallocene catalysts: one capable of producing high molecular weight copolymers; and one suitable for producing lower molecular weight copolymers having at least a portion of vinyl terminations, and the copolymer compositions produced thereby. Copolymer compositions may comprise (1) a first ethylene copolymer fraction having high molecular weight, exhibiting branching topology, and having relatively lower ethylene content (based on the weight of the first ethylene copolymer fraction); and (2) a second ethylene copolymer fraction having low molecular weight, exhibiting linear rheology, and having relatively higher ethylene content (based on the weight of the second ethylene copolymer fraction).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 12, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jingwen Zhang, Rainer Kolb, Andy H. Tsou, Periagaram S. Ravishankar, Jo Ann M. Canich, Francis C. Rix
  • Patent number: 11292983
    Abstract: A product resulting from the reaction of at least: a hydroxybenzoic acid substituted by a hydrocarbyl group, a boron compound, and a quaternary ammonium salt. A lubricant composition including this product. Use of this product as a lubricant for two-stroke marine engines and four-stroke marine engines, more preferably two-stroke marine engines.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 5, 2022
    Assignee: TOTAL MARKETING SERVICES
    Inventors: Valérie Doyen, Isabelle Rogues De Fursac
  • Patent number: 11292982
    Abstract: A method of lubricating the contact between a first surface coated with a hydrogenous carbon film or coating of type a-C:H, ta-C:H, a-C:H:Me or a-C:H:X, as classified by VDI-Standard VDI 2840 and a second ferrous, preferably steel surface. The method comprises supplying to said contact a lubricating oil composition comprising a major amount of an oil of lubricating viscosity and (a) an oil-soluble or oil-dispersible molybdenum compound in an amount such as to provide between 150 and 1000 ppm by weight of molybdenum to the lubricating oil composition, and (b) between 0.1 and 5% by weight with respect to the weight of the lubricating oil composition of a polymeric organic friction modifier, the organic friction modifier being the reaction product of (i) a functionalised polyolefin, (ii) a polyether, (iii) a polyol and (iv) a monocarboxylic acid chain terminating group.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 5, 2022
    Inventors: Joseph P. Hartley, Emmanuel Laine, Gregory O. E. Stidder
  • Patent number: 11279899
    Abstract: A grease composition for a constant-velocity joint includes a mineral oil, a thickener, a molybdenum dithiocarbamate, a potassium borate hydrate, and a zinc dialkyldithiophosphate, wherein a content of the molybdenum dithiocarbamate is 1.2% by mass or more and 8% by mass or less, a content of the zinc dialkyldithiophosphate is 0.3% by mass or more and 2.0% by mass or less, and a content of the potassium borate hydrate is 0.28% by mass or more and 1.9% by mass or less, and wherein a mass ratio of the content of the molybdenum dithiocarbamate to the content of the potassium borate hydrate (molybdenum dithiocarbamate/potassium borate hydrate) is 2 or more and 13 or less, and a mass ratio of the content of the zinc dialkyldithiophosphate to the content of the potassium borate hydrate (zinc dialkyldithiophosphate/potassium borate hydrate) is 0.5 or more and 3.6 or less.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: March 22, 2022
    Assignees: HONDA MOTOR CO., LTD., ENEOS CORPORATION
    Inventors: Katsuhito Kusakai, Yasuo Suzuki, Kazuya Matsuoka, Toru Izumi, Yusuke Ayame
  • Patent number: 11279897
    Abstract: Embodiments of the present disclosure are directed towards esterified oil soluble polyalkylene glycols of Formula (I): R1[O(R2O)n(R3O)m(C?O)R4]p, where R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, where R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: March 22, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Yaokun Han, Cheng Shen, Martin R. Greaves, Yong Zhao
  • Patent number: 11268042
    Abstract: A process for solid lubricant filler powder used in abradable coating manufacture comprising mixing a bentonite clay and a hexagonal boron nitride powder to form a mixture of the bentonite clay and the hexagonal boron nitride powder; consolidating the bentonite clay and the hexagonal boron nitride powder to form a composite material; heat treating the composite material to at least 500 degrees centigrade; breaking up the composite material into a variety of sizes; and segregating the composite material to produce a final product of free flowing, low dust powder of composite hexagonal boron nitride and calcined bentonite.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: March 8, 2022
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • Patent number: 11261913
    Abstract: Disclosed herein is a sliding member, such as a sliding bearing, including a resin overlay layer having improved conformability. The sliding member includes a bearing alloy layer and a resin overlay layer formed on the bearing alloy layer, wherein the resin overlay layer includes a solid lubricant phase, a binder resin phase, and a cushion phase, and an area ratio of the cushion phase is 0.5% or more but 5.0% or less.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: March 1, 2022
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Yuma Haneda, Hiroki Kobayakawa
  • Patent number: 11254893
    Abstract: A hydraulic lubricating oil composition is provided which contains a synergistic mixture of three phosphorous antiwear components in order to provide good thermal stability and good demulsibility to the lubricating oil composition.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 22, 2022
    Assignee: The Lubrizol Corporation
    Inventor: Shubhamita Basu
  • Patent number: 11230682
    Abstract: The present disclosure relates to methods and compositions for making bio-based, biodegradable, and non-bioaccumulating lubricating base oils generated by esterifying alkoxylated polyols (average alkoxylation ?3) with long-chain (?C14) saturated and unsaturated fatty acids (FA) or fatty acids modified using industry recognized techniques.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 25, 2022
    Assignee: Tetramer Technologies, LLC
    Inventors: Zachary Hunt, Peter Gennaro, Jeffrey R. DiMaio