Patents Examined by Francis C Campanell
  • Viscosity index improver concentrates for lubricating oil compositions
    Patent number: 10829709
    Abstract: Concentrates of linear, block copolymers having a polymer block derived from a monoalkenyl arene, covalently linked to one or more blocks of a hydrogenated derivative of a conjugated diene copolymer, dissolved in highly saturated diluent oil, wherein the size of the monoalkenyl arene block is controlled to provide an optimized level of incompatibility of the block copolymer in the selected diluent.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 10, 2020
    Assignee: Infineum International Limited
    Inventors: Rajiv Taribagil, Isabella Goldmints, Stuart Briggs, Bogdan Barboiu, Richard D. Bertram, Robin H. Scott
  • Mixed phosphorus esters for lubricant applications
    Patent number: 10793802
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 6, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Hydrogenated polybutadienes useful as lubricant additives
    Patent number: 10787623
    Abstract: The invention relates to low molecular weight hydrogenated polybutadienes and to a method for the preparation of these polymers. The invention is also directed to lubricant compositions comprising these polymers and uses thereof.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 29, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Sofia Sirak, Holger Pletsch, Marius Kemper
  • Lubricating composition for lead and copper corrosion inhibition
    Patent number: 10787622
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity, an ashless thiocarbamate compound having an optionally-substituted hydrocarbyl group on an S-atom and an optionally-substituted hydrocarbyl group on an N-atom, and a boron-containing compound. The invention further relates to a method of lubricating an internal combustion engine with the lubricating composition.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 29, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Jody A. Kocsis, Mark J. McGuiness
  • Lubricating oil compositions comprising a biodiesel fuel and a Mannich condensation product
    Patent number: 10781394
    Abstract: This invention encompasses lubricating oil compositions comprising a base oil, a biodiesel fuel and a Mannich condensation product. A method for inhibiting viscosity increase in a diesel engine fueled at least in part with a biodiesel fuel is also described.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: September 22, 2020
    Assignees: CHEVRON ORONITE TECHNOLOGY B.V., CHEVRON ORONITE COMPANY LLC
    Inventors: Menno Anton Stefan Moniz, Walter Alexander Hartgers, Richard Hogendoorn, Moussa Echankouki, Peter Kleijwegt, Alexander B. Boffa, John Robert Miller
  • Synergistic rust inhibitor combination for lubricating grease
    Patent number: 10774285
    Abstract: The disclosed technology relates to an additive composition and lubricating grease composition containing a synergistic combination of ingredients for inhibiting rust, particularly rust on mechanical devices subject to contact with salt water.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 15, 2020
    Assignee: THE LUBRIZOL CORPORATION
    Inventor: Scott Capitosti
  • Sliding resin composition, and sliding member
    Patent number: 10760031
    Abstract: A resin composition for use in a sliding member, which has higher seizing resistance while maintaining abrasion resistance. The sliding resin composition includes: a resin binder; a solid lubricant; and a protecting and reinforcing agent that is harder and brittler than the resin binder. As the protecting and reinforcing agent, aggregates of particles harder than the resin binder are used. The amount of the protecting and reinforcing agent contained is 1 vol. % or more but 20 vol. % or less of the entire sliding resin composition. The particles harder than the resin binder have an average particle diameter of 10 nm or more but 100 nm or less that is smaller than that of the solid lubricant.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 1, 2020
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Hiroki Kobayakawa, Erina Yasuda
  • Solid lubricant and solid-lubrication rolling bearing
    Patent number: 10760616
    Abstract: A solid lubricant 11 is formed by molding and firing powder that includes amorphous and self-sintering carbon material powder 12, graphite powder 13, and a binder 14. The solid lubricant has high material strength and hardness, and also excellent impact resistance and wear resistance.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: September 1, 2020
    Assignee: NTN CORPORATION
    Inventors: Hisanori Aiga, Hiroki Manabe, Takahiro Gotou, Yoshinori Ito, Fuminori Satoji
  • Lubricant composition
    Patent number: 10752858
    Abstract: A lubricant composition has a high molybdenum content and includes a combination of at least two compounds including molybdenum.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: August 25, 2020
    Assignee: Total Marketing Services
    Inventors: Olivier Lerasle, Jérôme Valade, Mickaël Debord
  • Marine diesel lubricating composition
    Patent number: 10745638
    Abstract: The invention provides a method of lubricating a 2-stroke marine diesel cylinder liner with a lubricating composition having a total base number of 10 to 25 mg KOH/g. The invention further provides a lubricating composition for lubricating the 2-stroke marine diesel cylinder liner.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 18, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Stephen J. Cook, Natasha K. Horn, Shaun P. Carney, Mark C. Davies, David M. Hobson
  • Lubricating oil composition
    Patent number: 10717944
    Abstract: A lubricating oil composition for automotive transmissions is disclosed. It offers an automotive transmission (especially a fuel-saving type) which satisfies all requirements as regards the properties of resistance to churning, maintenance of the oil film and low-temperature viscosity. It comprises a GTL low viscosity base oil and a Group 1 high viscosity base oil.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 21, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Noriaki Shinoda, Ryuji Maruyama, Katsuji Okami
  • Lubricating composition containing an antiwear agent
    Patent number: 10704006
    Abstract: The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: July 7, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William R. S. Barton, Mark C. Davies, Michael R. Sutton, Matthew D. Gieselman, Christopher L. Friend, Ewan E. Delbridge, Patrick E. Mosier
  • MOS2- or WS2-filled hollow ZnS hexagonal nanotubes as core-shell structured solid lubricants and lubricant modifiers for space mechanisms
    Patent number: 10669498
    Abstract: A process for making solid lubricants or lubricant additives or lubricant modifiers may include synthesizing two-dimensional (2D) nanoplatelets, nanorods, or nanowires of MoO3 and WO3. The process may also include creating hollow hexagonal ZnO nanotubes by refluxing a mixture of zinc nitrate and urea at a predefined temperature or a range of temperatures for a predefined period or periods of time. The process may further include growing the hollow hexagonal ZnO nanotubes around platelets, nanorods, or nanowires of the MoO3 or WO3. The process may also include creating a solid lubricant in a core-shell configuration from the hollow hexagonal ZnS nanotubes with an embedded hexagonal core of MoS2 or WS2.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: June 2, 2020
    Assignee: U.S.A. as Represented by the Administrator of the National Aeronautics and S pace Administration
    Inventor: Abdul-Majeed Azad
  • Fuel economy engine oil composition
    Patent number: 10669507
    Abstract: The present invention is directed to a lubricating oil additive containing a vicinal diol and a particular detergent blend typically is low viscosity base oils whereby exhibiting improved fuel economy. In this respect, disclosed is a lubricating oil composition comprising: a major amount of base oil of lubricating viscosity; a friction modifier which is selected from the group consisting of C10-C30 alkane 1,2-diols and C10-C30 alkene 1,2-diols; an overbased alkyl alkaline earth metal hydroxybenzoate detergent having a metal ratio less than 3.0; and an overbased alkyl calcium sulfonate or an overbased alkyl calcium hydroxybenzoate having a metal ratio of 3.5 or greater.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 2, 2020
    Assignee: CHEVRON JAPAN LTD.
    Inventor: Nobuo Ushioda
  • Seal swell agents for lubrication compositions
    Patent number: 10669504
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 2, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Mariam Shamszad, Paul E. Adams, Mahmud M. Hussain, Peter Miatt
  • Vacuum pump lubricants
    Patent number: 10662955
    Abstract: A vacuum pump may include a rotor and a stator, wherein the rotor is supported by metal bearings (such as steel bearings) to allow relative rotation of the rotor with respect to the stator. A liquid PFPE lubricant compound is provided to lubricate the bearings, wherein the lubricant further comprises a solid lubricant that is in suspension in the liquid lubricant. The solid lubricant can comprise any of graphite, graphene and molybdenum disulphide. In other words, the inventive concept encompasses a lubricated bearing arranged to support a rotating shaft in a body under sub-atmospheric conditions, wherein a lubricant used to lubricate the bearing comprises liquid PFPE lubricant having a low vapour pressure, and a solid lubricant that is held in suspension in the liquid lubricant. The solid lubricant may comprise any of graphite, graphene and molybdenum disulphide.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 26, 2020
    Assignee: Edwards Limited
    Inventor: Christopher John Shaw
  • Fatty amine ethoxylate in polyalkylene glycol based engine oils
    Patent number: 10655078
    Abstract: A composition contains a polyalkylene glycol and a fatty amine ethoxylate, the fatty amine ethoxylate having non-cyclic structure of structure (I). Where R is a linear, non-cyclic carbon-containing group with that is free of nitrogen, x and y are selected from a group consisting of zero and positive values provided that the sum of x and y are in a range of 8-20.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 19, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel F. Zweifel, Evelyn A. Zaugg-Hoozemans, Stephan Höltschi
  • Nano-additives enabled advanced lubricants
    Patent number: 10647938
    Abstract: The presently disclosed technology relates to a nano-additives to improve the performance of lubricants, oils, and greases. More specifically, the presently disclosed technology relates to applying capped metal oxide nanoparticles, such as capped zirconia nanoparticles, in the lubricants to produce a tribofilms on the lubricating surfaces to provide wear protection to the said surfaces. Also, the interaction of the capped zirconia nanoparticles with other commonly used additives in lubricants may further optimize the performance of the resulting tribofilms.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 12, 2020
    Assignees: PIXELLIGENT TECHNOLOGIES, LLC, UCHICAGO ARGONNE, LLC, THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventors: Imene Lahouij, Robert Carpick, Andrew Jackson, Harman Khare, Nitya Gosvami, Nicholaos G. Demas, Robert A. Erck, Aaron C. Greco, George R. Fenske, Wei Xu, Gregory Cooper, Zhiyun Chen
  • Thiadiazole components, compositions, and methods
    Patent number: 10647939
    Abstract: Provided herein are compositions that include a thiadiazole component and a solubility enhancing component. The solubility enhancing component can include a dispersant, a detergent, or both a dispersant and a detergent. The thiadiazole component can include one or more species having a hydrocarbyl-disulfanyl moiety. The compositions may be used as a corrosion inhibitor. Also provided herein are methods for making a thiadiazole component and a composition.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 12, 2020
    Assignee: International Petroleum Products & Additives Company, Inc.
    Inventors: Xingguo R. Chen, Jeffrey A. Crow, Troy R. Haynes, Jonathan A. Crow, Brian J. Cereghino
  • Corrosion resistant lubricant
    Patent number: 10640727
    Abstract: A lubricant contains alcohol initiated propylene oxide homopolymer, an oil soluble polyalkylene glycol other than the alcohol initiated propylene oxide homopolymer, and a calcium salt of dinonylnaphthalene sulphonate where the lubricant is further characterized by containing less than ten weight-percent of polyol esters based on total lubricant weight is useful as a lubricant for compressors.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 5, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Jiangbo Ma