Patents Examined by Irving Vaughn
  • Lubricating oil compositions
    Patent number: 4107054
    Abstract: Lubricating oil compositions having improved corrosion inhibition are disclosed. The lubricating oil compositions comprise (a) a major amount of a base lubricating oil, (b) alkenyl succinimide dispersant, and (c) corrosion inhibiting amount of certain specific acidic derivatives of benzene (e.g. 2-amino-5-methylbenzoic acid). In one aspect the lubricating oil composition contains additionally a minor amount of an overbased sulfonate.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: August 15, 1978
    Assignee: Continental Oil Company
    Inventor: Warren W. Woods
  • Pressure grease composition
    Patent number: 4107058
    Abstract: A grease composition is provided having improved extreme pressure properties and comprising an additive package of an insoluble phosphorus compound and an oil soluble sulfur compound. The particularly useful insoluble phosphorus compounds include the alkali metal or alkaline earth metal salts of a phosphorus acid while the useful soluble sulfur compounds include sulfurized hydrocarbons and organometallic sulfur salts.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: August 15, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: George A. Clarke, Gary L. Harting
  • Amino-amide lubricants derived from polymeric fatty acids and poly(oxyethylene) diamines
    Patent number: 4107061
    Abstract: Amino-amides obtained by the reaction of polymeric fatty acids with poly(oxyethylene) diamines are readily compatible with water in all proportions and form clear, aqueous solutions which have excellent lubricating properties.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: August 15, 1978
    Assignee: Emery Industries, Inc.
    Inventors: Robert J. Sturwold, Mark A. Williams
  • Polymer of 1,2,4-thiadiazole and lubricants containing it as an additive
    Patent number: 4107059
    Abstract: The Polymer of 1,2,4-thiadiazole of the structure ##STR1## AND LUBRICANTS CONTAINING SAID POLYMER ARE PROVIDED.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: August 15, 1978
    Assignee: Pennwalt Corporation
    Inventors: James Ping King, Everett A. Mailey, Ivan Christoff Popoff
  • Lubricant composition
    Patent number: 4105571
    Abstract: A storage stable lubricating composition having improved anti-friction and anti-wear properties is provided by a base oil composition containing an additive combination of (1) a zinc dihydrocarbyl dithiophosphate, (2) an ester of a polycarboxylic acid and a glycol and (3) an ashless dispersant containing a high molecular weight aliphatic hydrocarbon oil solubilizing group attached thereto and wherein either the zinc or ester component or both are predispersed prior to adding them to the lubricating composition.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: August 8, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Harold Shaub, Walter E. Waddey
  • Lubricating oil composition
    Patent number: 4104182
    Abstract: A lubricating oil composition comprising a hydrocarbyl oil of lubricating viscosity, a metal-containing additive characterized by promoting the formation of hard deposits in an internal combustion engine, and a hydrocarbon-substituted succinimide represented by the formula: ##STR1## in which R is an aliphatic hydrocarbon radical having from about 1 to 50 carbon atoms and R' is a hydrocarbon radical having from 3 to 20 carbon atoms, and a method for lubricating an internal combustion engine.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: August 1, 1978
    Assignee: Texaco Inc.
    Inventors: Kechia J. Chou, Walter W. Hellmuth
  • Production of overbased metal phenates
    Patent number: 4104180
    Abstract: Producing overbased carbonates by hydrolyzing a metal alkoxyalkoxide in the presence of a phenolic or sulphonic surfactant and carbonating the product of hydrolysis.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: August 1, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventor: Victor Charles Ernest Burnop
  • Porous lubricant-impregnated bearing
    Patent number: 4104176
    Abstract: A porous lubricant-impregnated bearing comprising a matrix of closely packed, discrete particles, such as glass microspheres, bonded together with a bonding material that is different from the particles, such as a cured organic bonding material, and that only partially fills the interstices between the particles; and a migratable lubricant dispersed in the unfilled interstices.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: August 1, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James L. Bidler
  • Additives comprising (N, N-diorganothiocarbamyl) phosphorothioites and lubricant compositions containing the same
    Patent number: 4104181
    Abstract: Novel (N, N-diorganothiocarbamyl) phosphorothioites having the following general structures: ##STR1## and mixtures thereof impart good antiwear and EP properties to lubricant compositions (e.g. gear oils and cutting oils) containing them.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: August 1, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Phillip S. Landis, Abraham O. M. Okorodudu
  • Grease compositions
    Patent number: 4104177
    Abstract: Grease compositions containing a polyurea grease thickener and certain acylated alkylene polyamines are disclosed.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: August 1, 1978
    Assignee: Shell Oil Company
    Inventor: Gerard P. Caruso
  • Lubricant compositions
    Patent number: 4101430
    Abstract: Lubricant compositions are provided containing a stabilizing amount against oxidative degradation of an organo sulfur-containing nickel complex.
    Type: Grant
    Filed: February 15, 1977
    Date of Patent: July 18, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Milton Braid, Samuel J. Leonardi
  • Lubricant composition
    Patent number: 4101427
    Abstract: The anti-wear and anti-friction properties of a fully formulated lubricating composition containing a zinc dialkyldithiophosphate or a similar metal dialkyldithiophosphate is improved by adding an amine salt of a dialkyldithiophosphate. The amine salt is prepared with a t-alkyl primary amine. The amine salt may be simply added to a formulated composition or used as a substitute for the metal dialkyldithiophosphate which are often included in lubricating compositions.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: July 18, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventor: Harold Shaub
  • Lubricant compositions
    Patent number: 4101429
    Abstract: Lubricating oil compositions are provided which comprise: (A) a major amount of oil of lubricating viscosity, and (B) an effective amount dissolved therein of each of (1) a zinc primary dihydrocarbyl dithiophosphate; (2) a mixture of (a) certain dimeric acids and (b) the reaction product of a monocarboxylic acid, certain polyalkylene polyamines and an alkenyl succinic anhydride; and (3) a substantially neutral zinc salt of a dihydrocarbyl sulfonic acid. These lubricating oil compositions are useful as functional fluids in a variety of systems as coolants, hydraulic fluids, turbine oils, spindle oils and the like.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: July 18, 1978
    Assignee: Shell Oil Company
    Inventor: August H. Birke
  • Composition comprising a mixture of the zinc salts of O,O-di(primary and secondary) alkyldithiophosphoric acids
    Patent number: 4101428
    Abstract: A mixture of the zinc salts of O,O-dialkyldithiophosphoric acids prepared by contacting a feedstock comprising a mixture of one or more C.sub.1 to C.sub.30 primary alcohol(s) and one or more C.sub.4 to C.sub.20 secondary alcohol(s) with P.sub.2 S.sub.5 to form a mixture of O,O'-dialkyldithiophosphoric acids and thereafter neutralizing the mixture of acids by contact with zinc oxide, the secondary alcohol(s) forming not less than 25 mol.% of the feedstock mixture.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: July 18, 1978
    Assignee: Chevron Research Company
    Inventor: John Crawford
  • Turbine lubricant
    Patent number: 4101431
    Abstract: Described herein is an extreme pressure turbine lubricant exhibiting improved vapor space rust protection, oxidation stability and air release properties comprising synthetically derived triarylphosphates, benzotriazole, a 2,6-di-t-butylphenol as antioxidant, a phenol-free anti-rust concentrate and caprylic or capric acid.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: July 18, 1978
    Assignee: Texaco Inc.
    Inventor: Lawrence F. Kuntschik
  • Greases containing borate dispersions as extreme-pressure additives
    Patent number: 4100080
    Abstract: Greases are provided which contain organic grease thickeners and dispersions of finely divided borates as extreme-pressure agents.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: July 11, 1978
    Assignee: Chevron Research Company
    Inventor: John Howard Adams
  • Extrudable lubricant wicking material
    Patent number: 4099805
    Abstract: An extrudable, oil-permeated wicking material, for use in lubricating sleeve metal bearings, is made from a mass of steam-pressure-splayed, swollen, lignin-containing, dried, wood fibers, and a contained lubricating oil; where the weight ratio of oil:lignin containing wood fibers is from about 8:1 to about 3:1, and the oil is contained in microcapillary voids in contact with the lignin.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: July 11, 1978
    Assignee: Westinghouse Electric Corp.
    Inventors: Gordon C. Gainer, Russell M. Luck
  • Process for the preparation of additives for lubricating oils
    Patent number: 4100085
    Abstract: In a process for the preparation of detergent additives for lubricant oils, of the type in which an alkylphenolsulfide is neutralized with an oxygen containing compound of an alkaline earth metal and carbonated with carbon dioxide, the process and particularly the neutralization step is carried out in the presence of a promotor selected from NH.sub.3 and NH.sub.4 OH and a co-promoter which is a short chain alcohol having not more than 5 carbon atoms.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: July 11, 1978
    Assignee: Liquichimica Robassomero S.p.A.
    Inventors: Andrea Peditto, Franco Fossati, Vincenzo Petrillo
  • Preparation of overbased metal naphthenate lubricating oil compositions
    Patent number: 4100084
    Abstract: A method for the preparation of overbased metal naphthenates of improved clarity and filterability by reacting a mixture of an oil soluble metal naphthenate, and a metal hydroxide in a light hydrocarbon-alcohol-nonpolar diluent oil solvent medium with carbon dioxide at a temperature of 140 to 155.degree. F using a mole ratio of metal hydroxide to metal naphthenate ranging from 1:1 to 10:1 and a CO.sub.2 to metal naphthenate mole ratio of 0.75 to 1.1, allowing the mixture to stand for 1 to 100 hours; then filtering the resulting carbonated mixture and recovering the desired composition wherein the degree of overbasing of the naphthenate ranges from 1 to 10.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: July 11, 1978
    Assignee: Texaco Inc.
    Inventor: William J. Powers, III
  • Polyurea-based extreme pressure grease
    Patent number: 4100081
    Abstract: Polyurea-based greases containing as an extreme-pressure additive an alkali metal triborate introduced or produced in the grease in aqueous solution.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: July 11, 1978
    Assignee: Chevron Research Company
    Inventors: John L. Dreher, Richard E. Crocker