Patents Examined by Andrew Metz
  • Patent number: 4465883
    Abstract: A bullet lubricant is disclosed which includes a miscible amount of low molecular weight polyethylene polymer or ethylene-vinyl acetate copolymers in a wax base. The lubricant has a melting point in excess of 180.degree. F. The lubricant is applied by first heating a bullet and the mix to a pre-determined temperature then coating the bullet and cooling the bullet to allow the lubricant to solidify.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: August 14, 1984
    Assignee: Olin Corporation
    Inventors: Frances G. Lopata, Venkataramaraj S. Urs
  • Patent number: 4465607
    Abstract: A lubricating composition of essentially only a lubricating oil and particles of polytetrafluoroethylene uniformly dispersed and suspended in the lubricating oil. The lubricating composition is manufactured by sonically agitating a mixture of lubricating oil and particles of polytetrafluoroethylene at sufficiently high energy levels to produce violent cavitation. The sonic agitation is provided by an ultrasonic generating device in a system whereby the mixture is sonically agitated as it continuously passes through the ultrasonic generator.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: August 14, 1984
    Inventor: Eric C. Cottell
  • Patent number: 4456539
    Abstract: Oxidation in lubricants is reduced by adding to the lubricant a small portion of a triazole/dithiophosphate reaction product.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: June 26, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Joosup Shim
  • Patent number: 4456538
    Abstract: Molybdenum-containing compositions prepared by reacting:(a) a phosphorus-containing acid represented by the formula: ##STR1## wherein each X and X' is independently oxygen or sulfur, each n is zero or one and each R is independently the same or a different hydrocarbon-based radical; and(b) at least one hexavalent molybdenum oxide compound, and(c) hydrogen sulfide,in the presence of(d) a polar solvent are useful as additives for lubricants. Internal combustion engines, especially gasoline engines, when lubricated by said additive-containing lubricants exhibit improved fuel economy.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: June 26, 1984
    Assignee: The Lubrizol Corporation
    Inventor: Ripple David E.
  • Patent number: 4454050
    Abstract: A release agent and lubricant composition particularly suitable for die casting operations includes a combination of an alkali metal salt of an aromatic polycarboxylic acid, such as phthalic acid, and an alkali metal salt of an aliphatic polycarboxylic acid such as adipic acid. Other additives may be present including thickeners, preservatives, surfactants, pigments, corrosion inhibitors, and dyes.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: June 12, 1984
    Assignee: Pennwalt Corporation
    Inventor: Jerome W. Bertell
  • Patent number: 4454059
    Abstract: Compositions useful as lubricant and fuel dispersants are prepared by reacting an intermediate (A) of the formulae ##STR1## wherein each R is hydrogen or a lower hydrocarbon-based group, Ar is an aromatic moiety having at least one aliphatic substituent of at least 6 carbon atoms and x is 1 to about 10, with an amino compound (B) which contains one or more amino groups having hydrogen bonded directly to an amino nitrogen.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: June 12, 1984
    Assignee: The Lubrizol Corporation
    Inventors: John F. Pindar, Jerome M. Cohen, Charles P. Bryant
  • Patent number: 4452711
    Abstract: An aqueous metalworking lubricant composition comprising a water-soluble mixture of polyoxypropylene-polyoxyethylene-polyoxypropylene block copolymers, a water-soluble carboxylic acid, a water-soluble alkanolamine and water. A preferred lubricant composition also comprises an antifoam agent. The lubricant composition is suitable for both cold rolling and hot rolling of metals such as aluminum and aluminum alloys.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: June 5, 1984
    Assignee: Aluminum Company of America
    Inventor: Joseph T. Laemmle
  • Patent number: 4452712
    Abstract: A method of metalworking including the step of applying to a metal object a synthetic aqueous lubricant composition. The composition comprises a water-soluble mixture of polyoxypropylene-polyoxyethylene-polyoxypropylene block copolymers, a water-soluble carboxylic acid, a water-soluble alkanolamine and water. The metalworking method preferably includes a step of either hot rolling or cold rolling. The method is especially suitable for use on aluminum and aluminum alloy material.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: June 5, 1984
    Assignee: Aluminum Company of America
    Inventor: Joseph T. Laemmle
  • Patent number: 4448701
    Abstract: The present invention is directed to a cutting fluid for machining fissionable material. The cutting fluid is formed of glycol, water and boron compound in an adequate concentration for effective neutron attenuation so as to inhibit criticality incidents during machining.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: May 15, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Walter K. Duerksen, John M. Googin, Bradley Napier, Jr.
  • Patent number: 4446038
    Abstract: Citric imide acids represented by the formula: ##STR1## are disclosed, wherein R is a hydrocarbon-based radical having up to 30 carbon atoms. The disclosed citric imide acids are useful as additives in lubricants, especially as friction reducing agents in motor oils and other lubricants.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: May 1, 1984
    Assignee: Texaco, Inc.
    Inventors: Raymond C. Schlicht, Anthony P. Skrobul
  • Patent number: 4446039
    Abstract: Compositions useful as additives for fuels and lubricants can be made by reacting (A) an aromatic compound having an OH or SH group attached to an aromatic nucleus and an aromatic hydrogen atom (e.g., a substituted phenol wherein the substituent is an alkyl group of at least 50 carbon atoms); (B) an aldehyde or reactive equivalent thereof (e.g., formaldehyde); (C) a non-amino hydrogen, active hydrogen compound (e.g., a phenol, N,N-dimethyl aniline, etc.) and optionally, (D) an aliphatic alkylating agent of at least 30 carbon atoms (e.g., a polyisobutene of about 50 carbon atoms).
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: May 1, 1984
    Assignee: The Lubrizol Corporation
    Inventors: John F. Pindar, Jerome M. Cohen
  • Patent number: 4443360
    Abstract: Oil-insoluble zinc salts of cyclic dithiophosphates are rendered oil soluble when combined to form a complex with alkenyl or alkyl mono- or bis-succinimides. Oil compositions containing this combination are useful as crankcase lubricants.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: April 17, 1984
    Assignee: Chevron Research Company
    Inventors: Elaine S. Yamaguchi, Thomas V. Liston
  • Patent number: 4440657
    Abstract: A synthetic ester lubricating oil composition having effective high temperature properties and hydrolytic stability comprising a selected synthetic ester base oil and the additive combination of a selected tertiary-butylphenyl substituted phosphate ester and a selected alkyl amine. Additionally, a method for providing hydrolytically stable turbine oils which comprises adding a combination of a selected tertiary-butylphenyl phosphate and a selected alkyl amine to a synthetic ester base oil.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: April 3, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Stephen J. Metro, Dale D. Carr
  • Patent number: 4440659
    Abstract: A lubricating oil dispersant is made by grafting an alkyl methacrylate or acrylate and maleic anhydride onto a Bright Stock mineral oil backbone using a free radical generating catalyst and then reacting the product with an amine to form amide or imide groups.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: April 3, 1984
    Assignee: Ethyl Corporation
    Inventors: Jackson C. Chen, Marguerite S. Baylerian, Bryan T. Davis, Ellis B. Rifkin
  • Patent number: 4440654
    Abstract: Method for producing a cooling emulsion, particularly for use as an auxiliary means in boring, cutting and grinding in the metalworking industry, in which organic substances which are per se insoluble in water are rendered water-dispersible and are emulsified with water. A mixture of about 3% to 15% by weight of natural wax(es) of animal and/or 0.1% to 0.45% by weight of a commercial emulsifier, and the remainder an aqueous di/tri-ethanol mixture comprising about 50% by weight of water, 37.5% by weight of di-ethanolamine and about 12.5% by weight of tri-ethanolamine is produced. Then the mixture is brought to a boil while stirring; after dissolution of the wax component, it is cooled to a reaction temperature while stirring, and subsequently, after aminization of the wax component by the di/triethanol mixture is cooled down to application temperature. For use it is further diluted with water.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: April 3, 1984
    Inventor: Henry Zimzik
  • Patent number: 4439336
    Abstract: Lubricating oil adapted for use as a crankcase lubricant in internal combustion engines containing a friction-reducing amount of a fatty acid amide or ester of diethanolamine.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: March 27, 1984
    Assignee: Ethyl Corporation
    Inventor: Edward F. Zaweski
  • Patent number: 4438005
    Abstract: The ability of marine diesel engine cylinder lubricants is improved by the incorporation therein of a spreadability improving amount of at least one polyoxyethylene ester of the formula: ##STR1## wherein n ranges from 18 to 22 and R is an alkyl group having 11 to 17 carbon atoms in the chain.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: March 20, 1984
    Assignee: Texaco Inc.
    Inventors: Benjamin H. Zoleski, Rodney L. Sung
  • Patent number: 4435297
    Abstract: Nitrogen-containing phosphorus-free carboxylic acid derivatives made by reaction of an acylating agent with an alkanol tertiary monoamine are described. Typically the carboxylic acylating agent is an alkyl or alkenyl succinic anhydride containing about 20 to about 500 carbon atoms in the alkyl or alkenyl group. A typical amine is diethyl ethanol amine. These derivatives are useful in incorporating oil-soluble, water-insoluble functional additives, such as metal salts of acid phosphate and thiophosphate hydrocarbyl esters, into water-based functional fluids such as water-based hydraulic fluids.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: March 6, 1984
    Assignee: The Lubrizol Corporation
    Inventor: John W. Forsberg
  • Patent number: 4431553
    Abstract: The invention relates to a lubricant composition, the carrier material of which is a grease, a lubricating oil, a hydraulic oil or a cutting lubricant of natural and/or synthetic origin and as additive it contains 0.1 to 10 percent by weight of copper, tin and/or lead in the form of copper oxyquinolinate, tin oxyquinolinate and/or lead oxyquinolinate.The lubricant composition forms a plastic copper, tin and/or lead layer on the surfaces to be lubricated and ensures good frictional properties.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: February 14, 1984
    Assignee: Autoipari Kutato Intezet
    Inventors: Jozsef Fodor, Gyorgy Kolimar, Gizella Szilasi Muk, Margit Balog Hunyadi
  • Patent number: 4431554
    Abstract: 1000 Parts by weight of oil-in-water emulsion contain 10-70 parts by weight of palm kernel oil as reaction layer former, 5-20 parts by weight of poly-ethoxylated sorbitanoleate as emulsifier, 5-25 parts by weight of unsaturated, long chain monocarboxylic acids as inhibitor against hydrogen embrittlement and rusting, 1-25 parts by weight hexamethylenetetramine as stabilizer, fungicide and bactericide, rest deionized water. The emulsion is particularly suitable for cold rolling aluminum and aluminum alloys. The rolled strip materials exhibit excellent surface quality also after high reductions per pass.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: February 14, 1984
    Assignee: Swiss Aluminium Ltd.
    Inventor: Rudolf Baur