With Organic Nitrogen Or Halogen Compound Patents (Class 508/168)
  • Patent number: 10557014
    Abstract: A composite including a dispersed phase of an inorganic material of a metal chalcogenide composition with a fullerene-like or tubular-like geometry that is present in a polymeric matrix, wherein the inorganic material of the metal chalcogenide has a molecular formula MX2, where M is a metallic element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), cadmium (Cd), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), mercury (Hg) and combinations thereof, and X is a chalcogen element selected from the group consisting of sulfur (S), selenium (Se), tellurium (Te), oxygen (O) and combinations thereof.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: February 11, 2020
    Assignee: NANOTECH INDUSTRIAL SOLUTIONS, INC.
    Inventors: Eugene Kverel, Ronen Kreizman, George Diloyan, Alon Shapira
  • Patent number: 10160929
    Abstract: The present invention provides a rotation-transmitting apparatus with a built-in one-way clutch which is capable of preventing rolling contact surfaces and rolling surfaces of inner and outer rings of a rolling bearing from peeling and fretting wearing and is excellent in its resistance to heat and wear. The rotation-transmitting apparatus with a built-in one-way clutch has an inside rotational member; a cylindrical outside rotational member disposed concentrically with the inside rotational member; a one-way clutch connecting the outside surface of the inside rotational member and the inside surface of the outside rotational member to each other only when the outside rotational member rotates at a higher speed than the inside rotational member; and a pair of rolling bearings allowing the inside rotational member and the outside rotational member to rotate relative to each other.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: December 25, 2018
    Assignee: NTN CORPORATION
    Inventor: Hidenobu Mikami
  • Patent number: 9074156
    Abstract: Processes for the manufacture of metal complex grease compositions are provided. In one embodiment, the process comprises: preparing a slurry comprising a base oil, water, a metal base and a complexing agent, wherein the weight ratio of water:solid in the slurry is in the range of from 0.15:1 to 1.5:1; applying shear to the slurry; adding a C10-C24 saturated or unsaturated fatty acid or derivative thereof to effect a saponification reaction; removing water from the saponified product; heating the saponified product at a temperature in the range of from 190 to 230° C.; and subsequently cooling the product to a temperature in the range of from 200 to 150° C. to form the metal complex grease composition.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 7, 2015
    Assignee: Shell Oil Company
    Inventor: Jean-Luc Pierre André Brossaud
  • Publication number: 20150147012
    Abstract: Methods for improving bearing performance in compressors, especially for those that use high energy refrigerants or that have a high-side design, are provided. The compressor comprises a bearing that is substantially free of lead. The bearing comprises copper and at least one lubricant particle type selected from a group consisting of: molybdenum disulfide (MoS2), calcium fluoride (CaF2), tungsten disulfide (WS2), zinc sulfide (ZnS), hexagonal boron nitride, polytetrafluoroethylene (PTFE), carbon fiber, graphite, graphene, carbon nanotubes, carbon particles, thermoset polyimide, and combinations thereof. The compressor processes a high energy refrigerant and a lubricant oil comprising a sulfur-based additive. The sulfur-based additive reacts with the copper in the bearing to enhance lubricity and improve performance of the bearing in the compressor machine. Compressors having such features and improved bearing performance are also contemplated.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventor: Marc J. SCANCARELLO
  • Publication number: 20150024980
    Abstract: Provided is a grease composition that improves the dispersibility of a solid lubricant, that provides a sufficiently low friction coefficient in steel-resin sliding parts, and that prevents a stick-slip phenomenon. The grease composition comprising a lubricant base oil having a density of 0.75 to 0.95 g/cm3 at 15° C., an amide compound, a solid lubricant, and a metal soap-based thickener, wherein the solid lubricant is preferably a layered compound or a fluororesin, and wherein the amide compound is preferably a monoamide or a bisamide.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 22, 2015
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Takashi Arai, Kazumi Sakai, Yuji Shitara
  • Publication number: 20140364348
    Abstract: Compositions having a plurality of hard particles and a plurality of lubricant nanoparticles are disclosed. Methods of making and using the compositions are also disclosed.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 11, 2014
    Inventor: Ajay P. Malshe
  • Publication number: 20140322058
    Abstract: In order to prevent deterioration in performance of an oil-free screw compressor and scuffing caused by rust, surfaces of both male and female rotors are coated with heat-resistance coatings containing a solid lubricant. A coating contains Polyimide resin to which Molybdenum disulfide, as a solid lubricant, and Aluminium oxide and Titanium oxide, as additives, are added. Accordingly, it is possible to realize a coating that is higher in heat resistance and longer in lifetime than a conventional one.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Yukiko IKEDA, Kazuaki SHIINOKI, Masakatsu OKAYA, Natsuki KAWABATA, Masahiro KAWAMURA, Iwao AOKI
  • Publication number: 20140303050
    Abstract: An object of the present invention is to provide a sliding member capable of rapidly wrapping a mating member, and reducing the surface roughness of the mating member after wrapping. The present invention relates to a sliding member for sliding with a mating member subjected to hardening treatment, the sliding member including a coating layer containing a binder resin, molybdenum disulfide, and hard substance particles in massive form.
    Type: Application
    Filed: September 28, 2012
    Publication date: October 9, 2014
    Applicant: TAIHO KOGYO CO., LTD.
    Inventors: Takashi Tomikawa, Toshiyuki Chitose
  • Patent number: 8841242
    Abstract: Provided are an anti-wear agent comprising a heterocyclic compound having a heterocyclic skeleton derived from a compound selected from pyridines, pyrroles, pyrimidines, pyrazoles, pyridazines, imidazoles, pyrazines, triazines, triazoles, tetrazoles, oxazoles, oxadiazoles, thiazoles, thiadiazoles, furans, dioxanes, pyrans, and thiophenes and/or comprising a reaction product of the heterocyclic compound and a compound selected from a boron compound, a molybdenum compound, and a silicon compound, which is an anti-wear agent for a lubricating oil excellent in wear resistance, friction-reducing property, and base number-retaining property, and a lubricating oil composition comprising the anti-wear agent.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 23, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hideki Kamano, Hiroaki Koshima
  • Publication number: 20140228135
    Abstract: A grease composition which provides, in the working range of 150° C. to ?40° C., an enhanced temperature control performance, a reduced low-temperature rotational torque and an improved boot resistance; and a constant velocity joint wherein the grease composition is filled; are provided. A grease composition for a constant velocity joint comprising the following components (A) to (E): (A) a base oil containing 10 to 95% by mass of an ester synthetic oil produced from an aliphatic alcohol and an aromatic carboxylic acid and 90 to 5% by mass of a synthetic hydrocarbon oil; (B) a thickener; (C) molybdenum disulfide; (D) molybdenum dialkyldithiocarbamate e; and (E) zinc dithiophosphate.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicants: KYODO YUSHI CO., LTD., NTN Corporation
    Inventors: SHINYA KONDO, Akira Taniguchi, Ko Tanimura, Shinichi Takabe, Takaaki Shibata, Shinya Chuujou
  • Publication number: 20140212587
    Abstract: Compositions having a plurality of nanoparticles and nano-sheets are disclosed. Methods of making and using the compositions are also disclosed.
    Type: Application
    Filed: February 5, 2014
    Publication date: July 31, 2014
    Applicant: NanoMech, Inc.
    Inventor: Ajay P. Malshe
  • Publication number: 20140106995
    Abstract: Disclosed is a surface-treating agent for oil seal lip portion, comprising a lubricant filler and an adduct compound consisting of an adduct of toluene diisocyanate and trimethylolpropane, the surface-treating agent being applied to the surface of vulcanized rubber forming a lip portion of an oil seal comprising the lip portion and a metal ring. The application of the surface-treating agent of the present invention to the sliding surface of a seal lip portion of an oil seal effectively lengthens the service life of the oil seal, when used in a sliding part or a moving part, and leads to energy saving of equipment that uses the oil seal.
    Type: Application
    Filed: June 14, 2012
    Publication date: April 17, 2014
    Applicant: NOK Corporation
    Inventor: Kenichi Kunieda
  • Publication number: 20140024565
    Abstract: A composition that includes solid lubricant nanoparticles and an organic medium is disclosed. Also disclosed are nanoparticles that include layered materials. A method of producing a nanoparticle by milling layered materials is provided. Also disclosed is a method of making a lubricant, the method including milling layered materials to form nanoparticles and incorporating the nanoparticles into a base to form a lubricant.
    Type: Application
    Filed: June 19, 2013
    Publication date: January 23, 2014
    Applicant: Board of Trustees of the University of Arkansas
    Inventors: Ajay P. Malshe, Arpana Verma
  • Patent number: 8420580
    Abstract: A sliding resin composition is provided which hardly seizes by decreasing oil repellency of PTFE to prevent discharging of lubricating oil from sliding surface. That is, by using resin composition 1 where particles of PTFE 3 in the surface of which inorganic compound 4 having oil-absorptivity is embedded are dispersed in synthetic resin 2, the inorganic compound 4 having oil-absorptivity absorbs and retains lubricating oil, and oil repellency of PTFE 3 on the sliding surface can be decreased. Thus, discharging of the lubricating oil from the sliding surface can be inhibited and resin composition 1 hardly seizes.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: April 16, 2013
    Assignee: Daido Metal Company
    Inventors: Hideki Iwata, Seiji Amano
  • Patent number: 8415281
    Abstract: A sliding resin composition is provided which rapidly forms a transfer adhesion film of PTFE on the surface of a counter member at the initial stage of sliding. That is, in the case of using resin composition 1 which is in such a state that particles of PTFE 3 having PTFE film forming agent 4 embedded are dispersed in synthetic resin 2, when the surface of particles of PTFE 3 on the sliding surface of resin composition 1 contacts with the surface of an associated shaft, the PTFE film forming agent 4 is also present at the contact portion, whereby transfer adhesion of PTFE 3 to the surface of the associated shaft is accelerated and thus the time required for decrease of coefficient of friction can be shortened.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: April 9, 2013
    Assignee: Daido Metal Company Ltd.
    Inventor: Hideki Iwata
  • Publication number: 20130079158
    Abstract: The invention provides a grease composition for constant velocity joint containing the components (a) to (g) below and a constant velocity joint containing said composition. (a) a diurea thickening agent having the following formula (1): R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 ??(1) wherein R1 and R2 may be the same or different and represent C8-C20 alkyl groups, (b) an ester synthetic oil, (c) a mineral oil and/or a synthetic hydrocarbon oil, (d) a molybdenum dialkyldithiocarbamate, (e) molybdenum disulfide, (f) a polytetrafluoroethylene, and (g) a zinc dithiophosphate compound. The grease composition of the invention reduces variations in rotational resistance of the constant velocity joint at a low temperature.
    Type: Application
    Filed: November 20, 2012
    Publication date: March 28, 2013
    Applicants: NTN CORPORATION, KYODO YUSHI CO., LTD.
    Inventors: KYODO YUSHI CO., LTD., NTN CORPORATION
  • Patent number: 8216983
    Abstract: The present invention provides a grease composition for use in a constant velocity joint, which is excellent in the resistance to flaking. The grease composition comprises the following components (a) to (d): (a) a base oil; (b) a thickener; (c) an organic molybdenum compound; and (d) at least one compound selected from the group consisting of oxides of divalent typical metals having a Mohs hardness lower than that of the steel and compounds of the foregoing divalent typical metals, which can immediately be converted into the corresponding oxides of these metals having a Mohs hardness lower than that of the steel under the boundary lubrication conditions. In particular, the present invention relates to a grease composition for use in a constant velocity joint, wherein the component (d) is zinc oxide or zinc carbonate and wherein the component (c) is molybdenum dithiocarbamate.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 10, 2012
    Assignee: Kyodo Yushi Co., Ltd.
    Inventors: Akira Taniguchi, Shinya Kondo
  • Publication number: 20120077719
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions, and additive concentrates. The oil soluble additive composition comprises a salt or complex of (i) a molybdenum component which comprises a molybdenum oxide, sulfide, or oxysulfide of the general formula MoOxSy wherein x?0, y?0, and 12?(x+y)?2; and (ii) an imide wherein said imide comprises the reaction product of at least one dicarboxylic acid component having from about 8 to about 22 carbon atoms, and at least one nitrogen compound selected from ammonia and a polyamine.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Inventors: Gaurav Bhalla, Man Hon Tsang
  • Publication number: 20110252825
    Abstract: The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition.
    Type: Application
    Filed: June 29, 2011
    Publication date: October 20, 2011
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventor: Masato KANEKO
  • Patent number: 7932219
    Abstract: The present invention provides a grease composition which prevents frictional wear of a lubricating surface in a high load-applied state or in a state in which sliding motion is generated and is durable for a long time, a method of manufacturing capable of easily determining an addition ratio of an extreme-pressure agent of the grease composition, and a rolling bearing in which the grease composition is enclosed. A grease composition is composed by adding a thickener and an extreme-pressure agent containing sulfur in a molecular structure thereof to base oil. The extreme-pressure agent is added to the base oil so that a product of an amount (mgS/g) of active sulfur contained in the extreme-pressure agent and an addition amount (wt %) of the extreme-pressure agent with respect to an entire amount of the grease composition is in a range of 3 to 13.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: April 26, 2011
    Assignee: NTN Corporation
    Inventor: Hidenobu Mikami
  • Publication number: 20110082059
    Abstract: A sliding resin composition is provided which rapidly forms a transfer adhesion film of PTFE on the surface of a counter member at the initial stage of sliding. That is, in the case of using resin composition 1 which is in such a state that particles of PTFE 3 having PTFE film forming agent 4 embedded are dispersed in synthetic resin 2, when the surface of particles of PTFE 3 on the sliding surface of resin composition 1 contacts with the surface of an associated shaft, the PTFE film forming agent 4 is also present at the contact portion, whereby transfer adhesion of PTFE 3 to the surface of the associated shaft is accelerated and thus the time required for decrease of coefficient of friction can be shortened.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 7, 2011
    Applicant: DAIDO METAL COMPANY LTD.
    Inventor: Hideki IWATA
  • Patent number: 7910526
    Abstract: The present invention provides a grease composition for use in constant velocity joints, which comprises the following components (a) to (g) and a constant velocity joint comprising the grease composition sealed or encapsulated therein: (a) a base oil; (b) a diurea thickener represented by the following general formula: R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 wherein R1 and R2 each independently represents an alkyl group having 8 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or a cycloalkyl group having 6 to 12 carbon atoms; (c) a molybdenum dialkyl dithiocarbamate insoluble in the base oil; (d) a molybdenum dialkyl dithiocarbamate soluble in the base oil; (e) molybdenum disulfide; (f) at least one member selected from the group consisting of calcium phenate and calcium sulfonate; and (g) a sulfur-containing extreme-pressure agent free of phosphorus.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 22, 2011
    Assignees: Kyodo Yushi Co., Ltd., NTN Corporation
    Inventors: Mitsuhiro Kakizaki, Takashi Okaniwa, Minoru Ishijima, Shinichi Takabe
  • Patent number: 7867956
    Abstract: A urea-based lubricating grease composition comprising (a) as a thickener, a diurea compound which is an alkyldiurea compound having an average molecular weight in the range of from 600 to 700, wherein in the range of from 25 to 60 mole % of the total alkyl groups is an unsaturated component, and the total amine value of the primary amine constituting the raw material is in the range of from 250 to 350, (b) a base oil having as its main component one or more synthetic hydrocarbon oil(s) having a pour point of ?40° C. or below, wherein the kinematic viscosity of the base oil is 6000 mm2/sec or less at ?40° C., and (c) as additives, a mixture comprising an oil-soluble organic molybdenum complex, an oil-soluble organic zinc compound of dithiocarbamic acid, an oil-soluble organic zinc compound of dithiophosphoric acid and an inorganic sulphur compound; and a roller bearing and electric power steering device wherein the said lubricating grease composition is used as the lubricant.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: January 11, 2011
    Assignee: Shell Oil Company
    Inventors: Toshihiro Asakura, Yasushi Kawamura, Hirofumi Kuwabara, Takahiro Ozaki, Shigeyuki Sugimori, Keiji Tanaka
  • Publication number: 20100323934
    Abstract: A grease composition which provides, in the working range of 150° C. to ?40° C., an enhanced temperature control performance, a reduced low-temperature rotational torque and an improved boot resistance; and a constant velocity joint wherein the grease composition is filled; are provided. A grease composition for a constant velocity joint comprising the following components (A) to (E): (A) a base oil containing 10 to 95% by mass of an ester synthetic oil produced from an aliphatic alcohol and an aromatic carboxylic acid and 90 to 5% by mass of a synthetic hydrocarbon oil; (B) a thickener; (C) molybdenum disulfide; (D) molybdenum dialkyldithiocarbamate e; and (E) zinc dithiophosphate.
    Type: Application
    Filed: December 28, 2007
    Publication date: December 23, 2010
    Inventors: Shinya Kondo, Akira Taniguchi, Ko Tanimura, Shinichi Takabe, Takaaki Shibata, Shinya Chuujou
  • Publication number: 20100252749
    Abstract: The invention describes a wiper blade, in particular for windscreen wipers, which is at least partly provided with at least one coating, wherein the coating contains at least one indicator component for determining the layer thickness of the coating. The invention also describes a method for determining the layer thickness of a coasting of a wiper blade.
    Type: Application
    Filed: January 15, 2007
    Publication date: October 7, 2010
    Applicant: ROBERT BOSCH GMBH
    Inventors: Reiner Lay, Marc Pironnet, Wolfgang Endres
  • Patent number: 7786058
    Abstract: A rolling device employing a lubricating grease composition containing a thickener which is a mixture of (a) one or more diurea compounds made from one or more primary amines and a diisocyanate; (b) at least one fatty acid metal salt; (c) at least one amide compound selected from the group consisting of aliphatic amides and bisamides, where the proportions of (a), (b) and (c) satisfy the relationship: a/(b+c)=0.2?10 provided that (1) the proportion of ingredient (a) is 1-10, (2) the proportion of ingredient (b) is 0.5-2.5, and (3) the proportion of ingredient (c) is 0.5-2.5, and the amount of the thickener is 2 to 30% by weight, based on the lubricating grease composition; (d) a base oil which is a lube base oil having a pour point of ?36 to ?67.7° C. that includes a synthetic hydrocarbon oil as the main component; and (e) 1-7% by weight of an additive mixture containing an organomolybdenum complex, an organozinc compound of a dithiocarbamic acid, and an organozinc compound of dithiophosphoric acid.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: August 31, 2010
    Assignee: JTEKT Corporation
    Inventors: Hirofumi Kuwabara, Shigeyuki Sugimori, Toshihiro Asakura
  • Patent number: 7767631
    Abstract: A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. A product produced by the process includes the material for decreasing friction comprising a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A process comprising controlling the delivery of a lubricant to at least one of two moving surfaces in order to decrease friction between said moving surfaces, is also disclosed.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: August 3, 2010
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Publication number: 20100152076
    Abstract: A Lubricant comprises a carboxylic-acid-amide which is based on aliphatic unbranched, alicylic and/or aromatic chains with chain lengths from 2 to 60 carbon atoms.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 17, 2010
    Applicant: AB SKF
    Inventors: Ebbe Malmstedt, Walter Holweger, Hurbertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
  • Patent number: 7718585
    Abstract: A lubricant composition is disclosed comprising a superabsorbent polymer combined with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. In the composition, the material for decreasing friction comprises a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: May 18, 2010
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Publication number: 20090118147
    Abstract: A water-based lubricant composition, comprising: water, molybdenum disulfide, polytetrafluoroethylene, and a polymeric binder, wherein the binder is an acrylic resin or a polyurethane resin.
    Type: Application
    Filed: January 10, 2005
    Publication date: May 7, 2009
    Inventors: Aureliano Perez, JR., Kenneth A. Vaught, George P. Hansen
  • Patent number: 7524797
    Abstract: A water-based lubricant composition, comprising: water, molybdenum disulfide, polytetrafluoroethylene, and a polymeric binder, wherein the binder is an acrylic resin or a polyurethane resin.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: April 28, 2009
    Assignee: Texas Research International, Inc.
    Inventors: Aureliano Perez, Jr., Kenneth A. Vaught, George P. Hansen
  • Publication number: 20090065287
    Abstract: A rolling device is provided which employs a lubricating grease composition which considerably diminishes irregular friction fluctuations occurring on rolling/sliding friction surfaces, shows stable low-torque characteristics in a wide temperature range, can retain a sufficient oil film even at high temperatures, has along life, and contains a novel thickener. Also provided is an electric power steering apparatus employing the rolling device.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 12, 2009
    Inventors: Hirofumi Kuwabara, Shigeyuki Sugimori, Toshihiro Asakura
  • Publication number: 20080234150
    Abstract: The invention provides a grease composition for constant velocity joint containing the components (a) to (g) below and a constant velocity joint containing said composition. (a) a diurea thickening agent having the following formula (1): R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 ??(1) wherein R1 and R2 may be the same or different and represent C8-C20 alkyl groups, (b) an ester synthetic oil, (c) a mineral oil and/or a synthetic hydrocarbon oil, (d) a molybdenum dialkyldithiocarbamate, (e) molybdenum disulfide, (f) a polytetrafluoroethylene, and (g) a zinc dithiophosphate compound. The grease composition of the invention reduces variations in rotational resistance of the constant velocity joint at a low temperature.
    Type: Application
    Filed: May 21, 2008
    Publication date: September 25, 2008
    Inventors: Mitsuhiro Kakizaki, Shinya Kondo, Shinichi Takabe, Takaaki Shibata
  • Patent number: 7291581
    Abstract: Disclosed are borate and boronate compounds of the formulae where R1, R2 and R3 are independently hydrogen, straight or branched chain alkyl of 1 to 24 carbon atoms, straight or branched chain alkenyl of 2 to 24 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 15 carbon atoms, alkaryl of 7 to 15 carbon atoms; Ar is substituted or unsubstituted aryl of 6 to 10 carbon atoms; and R4 and R5 are independently defined as for R1 and may also be hydroxyphenyl or alkylated hydroxyphenyl, or R4 and R5 together with the —OBO— group form a substituted or unsubstituted 5 or 6 membered ring. The borate and boronate compounds are effective as antiwear, extreme pressure, and friction modifying additives for lubricating oils and fuels.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 6, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jeffrey A. Levine, Si Wu
  • Patent number: 7260889
    Abstract: The present invention relates to a coating composition comprising a) at least one binder and b) at least one substance which releases gases at elevated temperature, and c) at least one friction-reducing additive. With the aid of the coating compositions of the invention it is possible to fill gaps in the case of socket/pin couples or threaded-part couples for the purpose of sealing and locking. The use of the coating compositions allows disassembly of the parts without danger of seizing or jamming.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: August 28, 2007
    Assignee: Omnitechnik Mikroverkapselungsgesellschaft mbH
    Inventors: Rudolf Hinterwaldner, Karol Konat, Thomas Trübenbach, Anselm Weckerle
  • Patent number: 7105472
    Abstract: The present invention relates to a coating solution to be applied on the surface of metals or metal alloys, a process for cold forming of metals and metal alloys using said coating solution, and a coated blank made of a metal or a metal alloy.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: September 12, 2006
    Inventor: Walter Zepf
  • Patent number: 6846779
    Abstract: The present invention relates to a coating composition comprising a) at least one binder and b) at least one substance which releases gases at elevated temperature, and c) at one friction-reducing additive. With the aid of the coating compositions of the invention it is possible to fill gaps in the case of socket/pin couples or threaded-part couples for the purpose of sealing and locking. The use of the coating compositions allows disassembly of the parts without danger of seizing or jamming.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: January 25, 2005
    Assignee: Omnitechnik Mikroverkapselungsgesellschaft mbH
    Inventors: Rudolf Hinterwaldner, Karol Konat, Thomas Trübenbach, Anselm Weckerle
  • Patent number: 6787508
    Abstract: The present invention provides a substance for lubricating cutting tools, the substance preferably comprising grease and tapping fluid. The grease may include lithium and the tapping fluid may include molybdenum. The substance made from two to six parts of grease per one part tapping fluid.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: September 7, 2004
    Inventor: Tea Hor Gov
  • Patent number: 6774091
    Abstract: A lubricant additive formulation for increasing the performance of conventional engine lubricants for use as an engine treatment oil additive formulated for addition to conventional motor oil to improve the lubricating properties of the engine oil and enhance the performance of the engine. A preferred embodiment of the engine treatment oil additive comprises a blend of chemical constituents including a base stock selected from a synthetic base stock, a mineral oil base stock, and a severely hydrocracked base stock or combinations thereof, an oil soluble molybdenum additive, dispersant inhibitor, and selected additives such as polytetrafluoroethylene, viscosity index improvers, and extreme pressure wear agent used in combination with a conventional crankcase lubricant at about a 20 to about a 25% volume/percent or as a complete motor oil. Additional components may be added to the engine treatment oil additive formulation to enhance specific properties for special applications.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: August 10, 2004
    Assignee: Ashland Inc.
    Inventors: Michael A. Dituro, Richard J. Baumgart, Frances E. Lockwood
  • Patent number: 6737388
    Abstract: A lubricant composition for ammunition is an admixture of (a) molybdenum disulfide, (b) a fluorotelomer lubricant, and (c) a solvent medium which is deposited onto (d) a corn cob particle absorbent. Metal particles such as BBs or other grit may be included in the composition for use with copper jacketed bullets. The lubricant composition is deposited on the bullets by tumbling or vibrating the bullets, or otherwise contacting the bullets with the lubricant composition; drying the bullets and, thereafter contacting the bullets with untreated corn cob particle.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 18, 2004
    Inventor: Douglas Shepherd
  • Publication number: 20030216265
    Abstract: The present invention relates to a coating solution to be applied on the surface of metals or metal alloys, a process for cold forming of metals and metal alloys using said coating solution, and a coated blank made of a metal or a metal alloy.
    Type: Application
    Filed: April 4, 2003
    Publication date: November 20, 2003
    Inventor: Walter Zepf
  • Publication number: 20020177531
    Abstract: A lubricant composition for ammunition is an admixture of (a) molybdenum disulfide, (b) a fluorotelomer lubricant, and (c) a solvent medium which is deposited onto (d) a corn cob particle absorbent. Metal particles such as BBs or other grit may be included in the composition for use with copper jacketed bullets. The lubricant composition is deposited on the bullets by tumbling or vibrating the bullets, or otherwise contacting the bullets with the lubricant composition; drying the bullets and, thereafter contacting the bullets with untreated corn cob particle.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 28, 2002
    Inventor: Douglas Shepherd
  • Patent number: 6444621
    Abstract: A grease composition for steering of motorcars which comprises the following components (a) to (f): (a) a thickening agent; (b) a base oil having a pour point of not higher that −40° C.; (c) an organic molybdenum compound; (d) melamine cyanurate; (e) polytetrafluoroethylene; and (f) molybdenum disulfide. The grease composition has load resistance, or seizure-preventing ability and wear-reducing ability high enough to use the grease under severe lubricating conditions, and can impart, to the steering of motorcars, excellent operability at a low temperature.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: September 3, 2002
    Assignees: Koyodo Yushi Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Okaniwa, Akira Taniguchi, Fumio Ueda
  • Patent number: 6355602
    Abstract: A grease composition for constant velocity joints comprises the following components: (a) a base oil; (b) a diurea type thickening agent represented by the following formula (1): R1NH—CO—NH—C6H4—p—CH2—C6H4—p—NH—CO—NHR2  (1) (in the formula (1), R1 and R2 may be the same or different from one another and each represents an aryl group or a cycloalkyl group having 6 or 7 carbon atoms); (c) a molybdenum sulfurized dialkyl dithiocarbamate; (d) a molybdenum sulfurized dialkyl dithiophosphate; (e) molybdenum disulfide; (f) a calcium salt of an alkylaromatic sulfonic acid; and (g) a phosphorus free-and sulfur-containing extreme-pressure additive. The grease composition for constant velocity joints according to the present invention has a high ability of reducing the induced thrust force and is excellent in the durability.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: March 12, 2002
    Assignees: Kyodo Yushi Co., Ltd., NTN Corporation
    Inventors: Takashi Okaniwa, Junichi Imai, Yukio Hasegawa, Shinichi Takabe
  • Patent number: 6319880
    Abstract: A grease composition for constant velocity joints comprises the following components: (a) a base oil; (b) a diurea type thickening agent; (c) a molybdenum sulfurized dialkyl dithiocarbamate; (d) molybdenum disulfide; (e) at least one sulfur-phosphorus-containing extreme-pressure agent selected from the group consisting of zinc dithiophosphate compounds and thiophosphates; and (f) a fatty acid amide. The grease composition of the present invention has a high ability of reducing the induced thrust force and is excellent in the durability.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: November 20, 2001
    Assignees: Kyodo Yushi Co., Ltd., NTN Corporation
    Inventors: Takashi Okaniwa, Junichi Imai, Yukio Hasegawa, Shinichi Takabe
  • Patent number: 6265357
    Abstract: A broaching tool has a plurality of cutting teeth for broaching a small, deep hole with high precision and surface finish. Three to eight teeth are engaged in the hole for cutting at any one time. For broaching sticky metals such as stainless steel, each cutting tooth has a face angle, backoff angle and rise which are sufficiently large to prevent thermal hardening of the hole surface. A ring is provided between the front face and land of each cutting tooth having a width selected to prevent formation of axial and ring-shaped tool traces. V-shaped notches having a large radial angle and a small backoff angle are formed in the land of each cutting tooth to break chips and prevent clogging. The tool further includes a rear pilot having a plurality of smoothing teeth with a diameter larger than the finished diameter of the hole. A set of rough and fine broaching tools can be provided, with the fine tool being processed to convert it to a rough tool when it is worn beyond tolerance.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: July 24, 2001
    Assignee: Hughes Electronics Corporation
    Inventor: Lin-Sen Yuan
  • Patent number: 5962377
    Abstract: A lubricant additive formulation for increasing the performance of conventional engine lubricants for use as an engine treatment oil additive formulated for addition to conventional motor oil to improve the lubricating properties of the engine oil and enhance the performance of the engine. The preferred embodiment of the engine treatment oil additive comprises a synergistic blend of chemical constituents including an oil soluble molybdenum additive, polyalphaolefin, ester such as a polyolester or diester, polytetrafluoroethylene, dispersant inhibitor containing zinc dithiophosphate, mineral oil base stock, viscosity index improvers, and borate ester used in combination with a conventional crankcase lubricant at about a 20 to about a 25% volume/percent.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: October 5, 1999
    Assignee: Ashland Inc.
    Inventors: Richard J. Baumgart, Frances E. Lockwood, Michael A. Dituro
  • Patent number: 5952273
    Abstract: A grease composition for constant velocity joints comprising: (a) a base oil; (b) a diurea thickener of the formula (1):R.sup.1 NH--CO--NH--C.sub.6 H.sub.4 -p-CH.sub.2 --C.sub.6 H.sub.4 -p-NH--CO--NHR.sup.2wherein R.sup.1 and R.sup.2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups; (c) a molybdenum dialkyldithiocarbamate; (d) molybdenum disulfide; (e) at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates, and sulfur-nitrogen extreme pressure agents; and (f) a phosphorus-free sulfur extreme pressure agent. The grease composition has low coefficient of friction, good performance for reducing induced thrust and high durability.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: September 14, 1999
    Assignees: Kyodo Yushi Co., Ltd,, NTN Corporation
    Inventors: Yoichi Suzuki, Takashi Okaniwa, Yukio Asahara, Keizo Nagasawa, Mitsuhiro Kakizaki, Kiyoshi Takeuchi, Yukio Hasegawa, Shinichi Takabe
  • Patent number: 5792728
    Abstract: A non-toxic coolant/lubricant suspension is provided which is specifically designed for use in extremely high-load, high-stress machine operations, such as broaching. The composition of this coolant/lubricant includes about 1 to 15 wt % of molybdenum disulfide (MoS.sub.2) powder; about 1 to 7 wt % of soap flakes; about 6 to 12 wt % of a liquid polytetrafluoroethylene suspension; and about 66 to 92 wt % water. The liquid polytetrafluoroethylene component, which is a water-based suspension of polytetrafluoroethylene, serves as a replacement for toxic CCl.sub.4, which has been used to increase lubricity in coolant/lubricants comprising molybdenum disulfide. The replacement of CCl.sub.4 with liquid polytetrafluoroethylene in the present composition results in a non-toxic but still highly effective coolant/lubricant.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: August 11, 1998
    Assignee: Hughes Electronics Corporation
    Inventors: Lin-Sen Yuan, Lu Yuan
  • Patent number: 5650380
    Abstract: A lubricating composition is disclosed comprising a base oil of mineral and/or synthetic origin in combination with molybdenum disulfide, zinc naphthenate and one or more metal dithiophosphates, and optionally one or more metal dithiocarbamates. A lubricating grease comprising such a composition in combination with a thickener, which may be a urea compound, a simple lithium soap or a lithium complex, is particularly suitable for lubricating constant velocity joints such as constant velocity ball joints.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: July 22, 1997
    Assignee: Shell Oil Company
    Inventor: Robert Anthony Fletcher