Patents Examined by Vishal Vasisth
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Patent number: 9994787Abstract: A grease manufacturing method includes: mixing a first base oil containing a first thickener precursor and a second base oil containing a second thickener precursor to prepare a mixture; applying a shear rate of 102 s?1 or more to the mixture; and mixing and dispersing the first thickener precursor and the second thickener precursor for reaction to prepare a thickener.Type: GrantFiled: August 4, 2014Date of Patent: June 12, 2018Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Yoshiyuki Suetsugu
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Patent number: 9993889Abstract: An electrical discharge machining oil composition of the invention includes an organic acid metal salt and a base oil, in which the organic acid metal salt is an organic acid salt of a metal having an electronegativity on Pauling scale of 2 or less, and the present composition has a volume resistivity at 80 degrees C. of 2×10?5 T?·m or more and a kinematic viscosity at 40 degrees C. in a range from 0.5 mm2/s to 10 mm2/s.Type: GrantFiled: March 27, 2015Date of Patent: June 12, 2018Assignees: IDEMITSU KOSAN CO., LTD., Nagaoka University of TechnologyInventors: Tomohiko Kitamura, Yasushi Fukuzawa, Ken Yamashita, Daiki Hanaoka
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Patent number: 9994786Abstract: Disclosed is an oil soluble polyester composition, suitable for use as a dispersant in lubricating oils. The oil soluble polyester composition is prepared by reacting (a) a hydrocarbyl-substituted succinic acylating agent and (b) a di-hydroxyalkyl-substituted tertiary amine compound selected from a N,N-di-hydroxyalkyl-substituted tertiary monoamine and a N,N?-di-hydroxyalkyl-substituted tertiary diamine.Type: GrantFiled: July 14, 2016Date of Patent: June 12, 2018Assignee: Chevron Oronite Company LLCInventor: William Raymond Ruhe, Jr.
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Patent number: 9982213Abstract: A drive device includes a plurality of gears; and a grease composition that is held on a tooth flank of at least one gear of the gears. The at least one gear is made of a resin. The grease composition contains a hydrocarbon base oil, lithium soap serving as a thickener, and olefin resin powder. A weight ratio between the hydrocarbon base oil and the lithium soap in the grease composition is in a range of 94.5:5.5 to 96.0:4.0. A consistency of the grease composition is in a range of 360 to 400.Type: GrantFiled: May 20, 2015Date of Patent: May 29, 2018Assignee: Ricoh Company, LimitedInventors: Toshiyuki Kabata, Kumiko Seo, Masahiro Ishida, Naoki Matsuda, Teruyoshi Tanaka
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Patent number: 9976098Abstract: Disclosed is a method for producing a quality lubricant base oil (meeting the standard of Group III or higher) comprising: decarbonylating mixed fatty acids derived from oils and fats of biological origin to produce mixed olefins; oligomerizing the mixed olefins to produce an olefinic lubricant base oil; and performing hydrogenation to remove olefins from the olefinic lubricant base oil.Type: GrantFiled: April 8, 2014Date of Patent: May 22, 2018Assignees: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.Inventors: Hee Jung Jeon, Ja Hyun Yang, Tae Jin Kim, Young Hwan Lee, Jong Chan Lee, Wan Seop Kwon, Jin Hee Ok
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Patent number: 9976104Abstract: The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device application by employing a lubricating composition containing the antiwear agent.Type: GrantFiled: December 27, 2016Date of Patent: May 22, 2018Assignee: The Lubrizol CorporationInventors: Morey N. Najman, Mark R. Baker, Vera M. Marsic
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Patent number: 9976099Abstract: A composition including one or more aromatic alkanoate monoester compounds represented by the formulae (I) and (II) as defined herein. The composition has a viscosity (Kv100) from about 1 cSt to about 10 cSt at 100° C. as determined by ASTM D445, a viscosity index (VI) from about ?100 to about 300 as determined by ASTM D2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D5800. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the composition.Type: GrantFiled: December 20, 2016Date of Patent: May 22, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain
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Patent number: 9963656Abstract: An internal combustion engine crankcase lubricating oil composition having a sulphated ash content of no greater than 1.2 mass %, based on the mass of the lubricating oil composition, and a phosphorous content of no greater than 0.1 mass %, based on the mass of the lubricating oil composition, which lubricating oil composition comprises or is made by admixing: (A) a crankcase base oil of lubricating viscosity, in a major amount; and (B) the following additives, in respective minor amounts: (B1) a polymeric friction modifier being the reaction product of (a) a functionalized polyolefin, (b) a polyether, (c) a polyol, and (d) a monocarboxylic acid chain terminating group; and (B2) at least one oil-soluble molybdenum compound.Type: GrantFiled: April 12, 2012Date of Patent: May 8, 2018Assignee: INFINEUM INTERNATIONAL LIMITEDInventors: Philip J. Woodward, Wangkan Lin, Erika M. Vela, Anthony J. Strong
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Patent number: 9963655Abstract: An additive package for an internal combustion engine crankcase lubricating oil composition, which additive package comprises or is made by admixing: (A) 5-99.4 mass % based on the mass of the additive package, of a diluent oil of lubricating viscosity; and (B) the following additives: (B1) 0.1-10 mass % of a polymeric friction modifier, on an active matter basis, based on the mass of the additive package, which polymeric friction modifier is the reaction product of (a) a functionalised polyolefin, (b) a polyether, (c) a polyol, and (d) a monocarboxylic acid chain terminating group (B2) 0.5 to 10 mass % on an active matter basis, based on the mass of the additive package of one or more ashless organic friction modifiers that include a polar terminal group covalently bonded to a monomeric oleophilic hydrocarbon chain.Type: GrantFiled: April 12, 2012Date of Patent: May 8, 2018Assignee: INFINEUM INTERNATIONAL LIMITEDInventors: Philip J. Woodward, Wangkan Lin, Erika M. Vela
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Patent number: 9957463Abstract: A power transmitting fluid comprises a major amount of a lubricating oil and a minor amount of an additive composition. The additive composition comprises: (a) a friction modifier of the formula: (b) an oil-soluble phosphorus compound; and, (c) an ashless dispersant; wherein R1 and R2 may be the same or different and represent linear or branched, saturated or unsaturated hydrocarbyl groups having from 8 to 20 carbon atoms. Z represents a polyoxyalkylene segment or a polyalkoxylated alkyl amine segment. The friction modifiers provide the fluid with improved fluoroelastomer seal compatibility and enhanced copper corrosion compatibility.Type: GrantFiled: July 13, 2017Date of Patent: May 1, 2018Assignee: INFINEUM INTERNATIONAL LIMITEDInventors: Raymond F. Watts, Keith R. Gorda
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Patent number: 9957461Abstract: A polyester composition, suitable for use as a dispersant in lubricating oils, is disclosed. The polyester composition is prepared by reacting (a) an acylating agent selected from an aliphatic-substituted succinic acylating agent, an aromatic polycarboxylic acylating agent, and combinations thereof; and (b) a hydroxyalkyl-substituted tertiary amine compound of the following structure: wherein R? is a C1-24 aliphatic group; R in each of the x (RO), y (RO) and z (RO) groups is independently C2-4 alkylene; x+y is in a range of 2 to 7; and z is in a range of 1 to 5.Type: GrantFiled: July 11, 2017Date of Patent: May 1, 2018Assignee: Chevron U.S.A. Inc.Inventor: William Raymond Ruhe, Jr.
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Patent number: 9951290Abstract: A method for improving corrosion protection and friction coefficient in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition comprising a lubricating oil base stock as a major component, and a mixture of (i) at least one organic molybdenum compound, and (ii) at least one borated ester, as a minor component. Corrosion protection and friction coefficient are improved as compared to corrosion protection and friction coefficient achieved using a lubricating oil containing a minor component other than the mixture of (i) at least one organic molybdenum compound, and (ii) at least one borated ester.Type: GrantFiled: March 31, 2016Date of Patent: April 24, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Jason Z. Gao, Samuel C. Bainbridge, Luca Salvi
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Patent number: 9944877Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains at least one branched hydrocarbon having at least about 25% of the carbons in the form of methyl groups, or at least one polyol ester of at least one branched mono-carboxylic acid. A lubricating engine oil having a composition that contains at least one branched hydrocarbon having at least about 25% of the carbons in the form of methyl groups, or at least one polyol ester of at least one branched mono-carboxylic acid. The lubricating engine oils are useful as passenger vehicle engine oil (PVEO) products.Type: GrantFiled: August 26, 2015Date of Patent: April 17, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Jason Z. Gao, Eugine Choi, Luca Salvi, Matthew W. Boland
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Patent number: 9914894Abstract: The present disclosure concerns a lubricant composition including: at least one base oil; and at least two glycerol esters E1 and E2, ester E1 being an ester of glycerol and of a C12-C26 carboxylic acid and ester E2 being an ester of glycerol and of a C4-C10 carboxylic acid. The lubricant composition has good friction properties, and the use thereof promotes fuel savings.Type: GrantFiled: June 28, 2013Date of Patent: March 13, 2018Assignee: Total Marketing ServicesInventors: Raphaele Iovine, Carine Pizard, Philippe Marechal
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Patent number: 9914896Abstract: The present invention relates to a lubricant composition comprising at least one polyalkyl(meth)acrylate including repeating units derived from (meth)acrylates having 6 to 22 carbon atoms in the alcohol radical, wherein the polyalkyl(meth)acrylate includes repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom. The present invention further relates to a polyalkyl(meth)acrylate suitable for such a lubricant composition and to the use of a polyalkyl(meth)acrylate having repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom for reducing friction.Type: GrantFiled: April 19, 2012Date of Patent: March 13, 2018Assignee: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Ellen Suchert
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Patent number: 9909080Abstract: The invention provides a grease composition containing a base oil, a thickener and a rust inhibitor, characterized in that the rust inhibitor includes an organic sulfonate and a fatty acid amine salt. The grease composition of the invention exhibits excellent rust preventing characteristics and causes little damage to the environment.Type: GrantFiled: June 28, 2010Date of Patent: March 6, 2018Assignee: KYODO YUSHI CO., LTD.Inventors: Kenichiro Matsubara, Terasu Yoshinari, Ryo Aida, Junichi Imai
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Patent number: 9902839Abstract: A carbon material for bearings includes a porous carbon base material and an impregnation material. The impregnation material is made of resin or metal, and with which the carbon base material is impregnated. The carbon material for bearings includes a plurality of pores. When a pore distribution in the carbon material for bearings is measured by a mercury penetration method using a mercury porosity meter, a cumulative pore volume of pores having a diameter larger than 0.1 ?m is not more than 8 mm3/g.Type: GrantFiled: March 25, 2014Date of Patent: February 27, 2018Assignee: TOYO TANSO CO., LTD.Inventors: Yasuhisa Ogita, Motoaki Akiyama
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Patent number: 9896637Abstract: In a method of manufacturing a sliding member including a polyamide resin and a filler, a compound having a carbodiimide bond is supplied during kneading of the polyamide resin and the filler.Type: GrantFiled: April 6, 2016Date of Patent: February 20, 2018Assignee: JTEKT CORPORATIONInventors: Takeshi Kunishima, Tomoya Nishida
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Patent number: 9896634Abstract: A method for preventing or reducing engine knock or pre-ignition in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition comprising at least one ester of a non-aromatic dicarboxylic acid. The at least one ester of a non-aromatic dicarboxylic acid preferably comprises at least one adipate ester (e.g., dialkyl adipate ester). A lubricating engine oil having a composition comprising at least one ester of a non-aromatic dicarboxylic acid (e.g., adipate ester). A fuel additive composition for use in a gasoline fuel composition or a diesel fuel composition. The gasoline fuel composition or the diesel fuel composition is used in a spark ignition internal combustion engine. The fuel additive composition comprises at least one ester of a non-aromatic dicarboxylic acid (e.g., adipate ester). The lubricating oils of this disclosure are particularly advantageous as passenger vehicle engine oil products.Type: GrantFiled: April 8, 2015Date of Patent: February 20, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Jason Zhisheng Gao, Eric M. Bunnelle, Eugine Choi, Tomasz M. Young, Samuel C. Bainbridge
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Patent number: 9890858Abstract: A sliding element for an internal combustion engine may include a ferrous material base defining a plurality of surfaces. A binding nickel layer may be applied across all of the surfaces of the base. A deposited layer may be disposed on the binding layer. The deposited layer may include a metallic tungsten matrix and a tungsten carbide. The deposited layer may be provided with a thickness between 5 and 150 microns.Type: GrantFiled: June 28, 2013Date of Patent: February 13, 2018Assignees: Mahle Metal Leve S/A, Mahle International GmbHInventor: Rodrigo Favaron