Patents Examined by Jacqueline V. Howard
  • Patent number: 7288127
    Abstract: An environmentally clean dual fuel for use in an internal combustion engine, comprising acetylene as a primary fuel and a combustible fuel, such as one or more fluids selected from an alcohol such as ethanol, methanol or any other alcohol or alcohols from the group comprising C1-C20 carbon chains, ethers such as from the group comprising dimethyl ether, diethyl ether, methyl t-butyl ether, ethyl t-butyl ether, t-amyl methyl ether, di-isopropyl ether and the like, low-molecular-weight esters such as from the group comprising methyl formate, methyl acetate, ethyl acetate, methyl propionate, ethyl propionate, ethyl malate, and butyl malate, and the like, or other suitable combustible fluid such as mineral spirits and the like, as a secondary fuel for operatively preventing early ignition and knock arising from the primary fuel.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: October 30, 2007
    Assignee: Go-Tec
    Inventors: Joseph W. Wulff, Maynard Hulett, Sunggyu Lee
  • Patent number: 6916768
    Abstract: The present invention relates to grease gelling agents and greases having low noise characteristics. The greases of the present invention may also exhibit good low shear stability and good heat resistance, as well as the low noise characteristics. The novel grease compositions of the present invention comprise a grease gelling agent comprises a mixture of ?80 weight percent diureas and 0.1-20 weight percent polyureas.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: July 12, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventors: Carl E. Ward, Carlos E. Littlefield
  • Patent number: 6855676
    Abstract: A method of lubricating conveyor tracks or belts is herein described wherein the lubricant composition contains a polyalkylene glycol polymer and a fatty acid; also described are methods of manufacture of such lubricant compositions in both concentrate and diluted form. The compositions may also comprise additional functional ingredients.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: February 15, 2005
    Assignee: Ecolab., Inc.
    Inventors: Minyu Li, Kim Person Hei, Amy Haupert
  • Patent number: 6787663
    Abstract: A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: September 7, 2004
    Assignee: The Lubrizol Corporation
    Inventors: Paul E. Adams, Thomas J. Wolak
  • Patent number: 6783561
    Abstract: A method for providing lubricity in fuels and lubricants includes adding a boron compound to a fuel or lubricant to provide a boron-containing fuel or lubricant. The fuel or lubricant may contain a boron compound at a concentration between about 30 ppm and about 3,000 ppm and a sulfur concentration of less than about 500 ppm. A method of powering an engine to minimize wear, by burning a fuel containing boron compounds. The boron compounds include compound that provide boric acid and/or BO3 ions or monomers to the fuel or lubricant.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 31, 2004
    Assignee: The University of Chicago
    Inventor: Ali Erdemir
  • Patent number: 6780823
    Abstract: A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to the use of a conventional dilute aqueous lubricant.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 24, 2004
    Assignee: Ecolab Inc.
    Inventors: Minyu Li, Keight Darrell Lokkesmoe, Guang-Jong Jason Wei
  • Patent number: 6756348
    Abstract: This invention is directed to an antioxidant system for use in lubricating oils comprising sulfurized isobutylene and hindered phenols that provides enhanced oxidation resistance and is particularly useful in natural gas fueled engines, the method for making this antioxidant system, lubricating oils comprising the antioxidant system and methods for lubricating engines using lubricating oil comprising this antioxidant system.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: June 29, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: John D. Palazzotto, Mark R. Logan
  • Patent number: 6750183
    Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: June 15, 2004
    Assignee: Infineum International Ltd.
    Inventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girschick, David J. Martella, Mark G. Stevens, Jacob Emert
  • Patent number: 6737387
    Abstract: Disclosed are dispersed hydrated potassium borate compositions, as well as additive packages and finished oil compositions comprising the same. The dispersed hydrated potassium borate compositions of the invention exhibit low turbidity and the finished oil compositions exhibit improved wear performance under high temperature conditions.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: May 18, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, Kenneth D. Nelson, Juan A. Buitrago
  • Patent number: 6734150
    Abstract: This invention relates to a lubricating oil composition comprising a base stock and an antioxidant comprising an oil soluble trinuclear organomolybdenum compound of the generic formula: Mo3Sx—(Q) (1) wherein x is from 4 to 10 and Q is a core group, which may be a ligand, and at least one other compound selected from a phenolic and an aminic compound wherein the basestock has a kinematic viscosity at 100° C. (KV100) from about 2 cSt to 20 cSt (2×10−6 to 20×10−6 m2/sec) and a saturates content of at least 85%. The composition has a high oxidation stability, reduced deposit formation and is capable of giving rise to good fuel economy improvement.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: May 11, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jason Zhisheng Gao, Christopher John May, Jeffrey Robert Torkelson, Paul Simon Woolley
  • Patent number: 6734320
    Abstract: Novel non-symmetric, partially fluorinated compositions and method of manufacture which are useful as lubricants or as additives to lubricant formulations involving the molecular structure: R1f—F′—R2—F″—R3h where R1f represents a wholly or partially fluorinated organic residue end group, F′ and F″ represent functional linkages which may be alike or different, R2 represents the backbone and R3h represents a non-fluorinated organic residue end group. Such compositions are produced by reacting a mixture of alcohols, mercaptans or amines containing at least one partially fluorinated compound and at least one non-fluorinated compound in the mixture, thus producing the R1f and the R3h residues, with a difunctional organic compound (e.g., diacid, dinitrile, disulfonyl halide, diisocyanate, diisothiocyanate, diphosphoryl halide or dithiophosphoryl halide).
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: May 11, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Richard P. Beatty
  • Patent number: 6730638
    Abstract: A lubricating composition for internal combustion engines especially useful with fuels having less than 350 ppm sulfur comprises a lubricating oil basestock, a boron containing ashless dispersant, a molybdenum containing friction reducing agent, a metal type detergent and zinc dithiophosphate.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: May 4, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Liehpao O. Farng, Andrew Jackson, Willie A. Givens, Jr., Douglas E. Deckman, William H. Buck
  • Patent number: 6730818
    Abstract: A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an alpha-olefin of 3 to 20 carbon atoms, in the presence of a combination catalyst comprising a compound of a transition metal of Group IVb of the Periodic Table and an aluminoxane. The copolymer or terpolymer may be further processed by thermal cracking to yield novel cracked polymers, and the cracked polymers may be hydrogenated. The copolymers or terpolymers may also be hydroisomerized. All the polymers are useful as base oils for lubricating oils and consumer products.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: May 4, 2004
    Assignee: Penzoil-Quaker State Company
    Inventors: William J. Heilman, I-Ching Chiu, James C. W. Chien
  • Patent number: 6723686
    Abstract: The invention relates to compositions for cables filling wherein a styrene-butadiene block copolymer with radial structure is used as a gelling agent. This polymer is obtained through styrene and butadiene sequential polymerization and subsequent reaction with a coupling agent preferably of type Cl4-nMRn, wherein M=Sn or Si, R is an alkyl or aryl group and n is an integer from 0 to 2, and hydrogenation of the resulting polymer. This type of copolymer brings a higher stability to the final properties of the gel as compared with the linear hydrogenated synthetic rubbers usually used in the prior art.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 20, 2004
    Assignee: Dynasol Elastomeros S.A.
    Inventors: Juan Antonio Barrio Calle, Carlos Gonzalez Gonzalez, Juan Antonio Prieto Noguera
  • Patent number: 6723684
    Abstract: There is provided a grease composition useful for bearings of cars and aircraft which is stable in a wide range of temperature of 40 to 180° C. and exhibits low torque properties under high loading at low temperatures. A low torque grease composition having dynamic viscosity (40° C.) of 40 to 150 mm2/sec which comprises a base oil consisting of (a) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 25 mm2/sec or less and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and all of p, q and r is an integer and a sum thereof is an integer of 25 to 45 and (b) straight-chain perfluoropolyether oil having dynamic viscosity (40° C.) of 250 mm2/sec or more and represented by the following general formula: RfO(CF2O)p(C2F4O)q(C3F6O)rRf, wherein Rf is a perfluoro lower alkyl group and p, q and r are an integer of 10 to 20; and (c) polytetrafluoroethylene as a thickener.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: April 20, 2004
    Assignee: Minebea Co., Ltd.
    Inventors: Motoharu Akiyama, Tatsuya Hashimoto
  • Patent number: 6720294
    Abstract: A lubricating oil composition comprising, as a detergent, metal salt of a long chain hydrocarbyl-substituted organic acid, at a concentration of not more than 15 mmol/kg oil.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: April 13, 2004
    Assignee: Infineum USA L.P.
    Inventors: Malcolm Willars, Peter Sant
  • Patent number: 6716801
    Abstract: A stable, clear water-in-oil emulsion consisting of from about 5 to about 40 wt % aqueous phase and from about 95 to about 60 wt % non-aqueous phase, said aqueous phase being dispersed in said non-aqueous phase in the form of droplets having an average droplet size no greater than about 0.1 &mgr;m, said emulsion comprising at least 60 wt % of an oil selected from fuel oils, lubricating oils and mixtures thereof, from about 5 to about 30 wt % of an emulsifier composition, and the balance to 100 wt % water, wherein said emulsifier composition consists essentially of i) a mixture of C6-C15 alcohol ethoxylates, each comprising from 2 to 12 EO groups, ii) from 0 to about 25 wt % of an emulsifier selected from polyisobutylsuccinimide, a sorbitan ester and mixtures thereof, and iii) from 0 to about 90 wt % of an amine ethoxylate. The microemulsion is useful as a fuel and/or lubricant/coolant.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 6, 2004
    Inventor: David William Martin
  • Patent number: 6706670
    Abstract: This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions useful in cutting, grinding, shaping and other metal working operations which require a lubricant. The terms “first Group A” and “second Group B” are used herein to denote different groups and not to indicate any sequence of use or selection as any possible combination or sequence of use of a component(s) is envisioned without limit of any kind. The disclosed fluid compositions are also anticorrosive and environmentally more acceptable than current oil based fluids.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: March 16, 2004
    Assignee: Solutia, Inc.
    Inventors: Dennis J. Kalota, Yueting Chou, Timothy K. Hirzel, David C. Silverman, Jacob S. Tou, Winsor R. Cho
  • Patent number: 6703354
    Abstract: The invention provides an anticorrosive lubricant composition for molded plastic products, causing no chemical attack to mechanical components such as gears, shafts, and so forth, formed of molded resins, even if used therefor, and also provides mechanical components such as gears, shafts, and so forth, to which the same is applied. The anticorrosive lubricant composition for molded plastic products contains 100 parts by weight of a synthetic hydrocarbon oil having kinematic viscosity of 10 to 500 mm2/s at 40° C., and 0.1 to 10 parts by weight of a corrosion prevention additive.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: March 9, 2004
    Assignee: Minebea Co., Ltd.
    Inventor: Motoharu Akiyama
  • Patent number: 6703356
    Abstract: The present invention provides a process for polymerizing an olefin to produce poly-olefins using a crystalline catalyst. The resulting poly-olefins have low viscosity and low volatility and may be used in various functional fluids.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: March 9, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Margaret M. Wu