Patents by Inventor David E. Ripple
David E. Ripple has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090215657Abstract: A lubricating composition comprising an oil of lubricating viscosity; an amine salt of a phosphorus acid ester; a thiadiazole copper corrosion inhibitor; an overbased metal detergent; a boron compound; and at least one friction modifier provides good lubrication of a mechanical device such as a farm tractor, even though such composition is substantially free from zinc dialkyldithiophosphate.Type: ApplicationFiled: June 27, 2006Publication date: August 27, 2009Applicant: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 6596672Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.Type: GrantFiled: May 28, 2002Date of Patent: July 22, 2003Assignee: The Lubrizol CorporationInventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
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Publication number: 20030134756Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.Type: ApplicationFiled: May 28, 2002Publication date: July 17, 2003Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
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Patent number: 5674819Abstract: This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions.Type: GrantFiled: November 9, 1995Date of Patent: October 7, 1997Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, David E. Ripple
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Patent number: 5328620Abstract: This invention provides an oil additive composition which may be used as an additive for both diesel engine lubricants and transmission lubricants. Additives useful in diesel engine lubricants often do not meet the requirements of specific transmission lubricant specifications. Surprisingly, the inventive composition, which comprises a combination of a neutral or basic alkali metal salt of a phenol sulfurized using elemental sulfur, a metal salt of a dithiophosphoric acid, an ashless dispersant, a calcium or magnesium sulfonate detergent, and a manganese carboxylate, may be used to create lubricants for both engine and transmission use.Type: GrantFiled: December 21, 1992Date of Patent: July 12, 1994Assignee: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 5259967Abstract: A lubricating oil composition providing less than 1% sulfated ash comprises an additive package of a carboxylic dispersant, a rust inhibiting mixture, a hydrocarbyl substituted phenol prepared without sulfur or chlorine, and a neutralized acid or phenol.Type: GrantFiled: June 17, 1992Date of Patent: November 9, 1993Assignee: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 5202036Abstract: A diesel lubricant exhibiting improved ability to minimize undesirable viscosity increases when used in diesel engines is described. More particularly, in accordance with the present invention, a diesel lubricant is described which comprises a major amount of an oil of lubricating viscosity and a minor amount, sufficient to minimize undesirable viscosity increases of the lubricant when used in diesel engines, of a composition comprising (A) at least one carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with at least one amino compound containing at least one --NH-- group wherein said acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene characterized by an Mn value of at least about 1200 and an Mw/Mn ratio of at least about 1.5, and wherein said acylating agents are characterized by the presence within their structure of an average of at least about 1.Type: GrantFiled: May 29, 1992Date of Patent: April 13, 1993Assignee: The Lubrizol CorporationInventors: David E. Ripple, Jack L. Karn, Daniel M. Vargo
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Patent number: 4981602Abstract: Lubricating oil compositions for internal combustion engines are described which comprise (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent up to less than one equivalent, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN< group, said acylating agents being characterized by the presence within their structure of an average of at least 1.Type: GrantFiled: June 13, 1988Date of Patent: January 1, 1991Assignee: The Lubrizol CorporationInventors: David E. Ripple, Calvin W. Schroeck
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Patent number: 4957649Abstract: Lubricating oil compositions for internal combustion engines are described with comprise (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) at least one amine compound characterized by the present within its structure of at least one HN< group (C) at least one partial fatty acid ester of a polyhydric alcohol, and (D) at least one metal salt of a dihydrocarbyl dithiosphosphoric acid. The oil compositions also may contain (E) at least one carboxylic ester derivative composition, and/or (F) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound.Type: GrantFiled: August 1, 1988Date of Patent: September 18, 1990Assignee: The Lubrizol CorporationInventors: David E. Ripple, William B. Chamberlin, III
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Patent number: 4938881Abstract: Lubricating oil compositions for internal combustion engines are described with comprise (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) acylating agent of at least one amine compound characterized by the presence within its structure of at least one NH< group, and wherein the substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, (C) at least one basic alkali metal salt of sulfonic or carboxylic acid, and (D) at least one metal salt of a dihydrocarbyl dithiophosphoric acid. The oil compositions also may contain (E) at least one carboxylic ester derivative compositions, and/or (F) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound and/or (G) at least one partial fatty acid ester of a polyhydric alcohol.Type: GrantFiled: August 1, 1988Date of Patent: July 3, 1990Assignee: The Lubrizol CorporationInventors: David E. Ripple, William B. Chamberlin, III
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Patent number: 4904401Abstract: A lubricating oil formulation is described which is useful in internal combustion engines. More particularly, lubricating oil compositions for internal combustion engines are described with comprise (A) a major amount of oil of lubricating viscosity, and at least 2.0% by weight of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) at least one amine compound characterized by the presence within its structure of at least one HN< group, and wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkylene, said polyalkene being characterized by Mn value of about 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) from about 0.Type: GrantFiled: September 8, 1988Date of Patent: February 27, 1990Assignee: The Lubrizol CorporationInventors: David E. Ripple, Calvin W. Schroeck
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Patent number: 4194886Abstract: Condensation products made by reacting an alpha-haloalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The number of carbon atoms in the aromatic hydrocarbyl compound's substituents are each about 25 while the haloalkyl group contains from one to about 36 carbons. The acid or nitrile reactant usually contains three to about forty carbons. Products made from halomethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic diacid derivatives such as maleic anhydride are particularly useful. Similarly useful products can be made from these condensation products by further reacting their acid, acid derivative or nitrile groups with alcohols, polyols, monoamines, polyamines, metal salts or metals.Type: GrantFiled: February 5, 1979Date of Patent: March 25, 1980Assignee: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 4186157Abstract: A process for the preparation of a phosphorus-containing reaction mixture comprising at least one additive corresponding to the formula:Y.sup.a -S-Y.sup.bwherein Y.sup.a corresponds to ##STR1## and Z is ##STR2## Y.sup.b is-R.sup.8 -S-R.sup.9or-R.sup.8 -Hwhich comprises the steps of reacting(A) at least one phosphorus-containing reactant corresponding to the formula: ##STR3## with (B) at least one unsaturated aldehyde or ketone corresponding to the formula: ##STR4## with (C) at least one thiol or dithiol corresponding to the formula:HS-R.sup.8 -Hor isHS-R.sup.8 -SHwherein each R.sup.1 and R.sup.2 is independently a member selected from the group consisting of hydrocarbyl, hydrocarbyloxy and hydrocarbylmercapto of one to about 30 carbon atoms; R.sup.3 is hydrogen or hydrocarbyl of up to about 10 carbon atoms; R.sup.4 is hydrogen or lower alkyl; R.sup.5 and R.sup.6 are each independently selected from hydrogen, hydrocarbyl, hydrocarbyloxy and hydrocarbylmercapto of one to about 10 carbon atoms; R.sup.Type: GrantFiled: January 30, 1978Date of Patent: January 29, 1980Assignee: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 4179449Abstract: Condensation products made by reacting an alpha-haloalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The number of carbon atoms in the aromatic hydrocarbyl compound's substituents are each about 25 while the haloalkyl group contains from one to about 36 carbons. The acid or nitrile reactant usually contains three to about forty carbons. Products made from halomethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic diacid derivatives such as maleic anhydride are particularly useful. Similarly useful products can be made from these condensation products by further reacting their acid, acid derivative or nitrile groups with alcohols, polyols, monoamines, polyamines, metal salts or metals.Type: GrantFiled: August 11, 1978Date of Patent: December 18, 1979Assignee: The Lubrizol CorporationInventor: David E. Ripple
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Patent number: 4176077Abstract: Condensation products made by reacting an alphahaloalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The number of carbon atoms in the aromatic hydrocarbyl compound's substituents are each about 25 while the haloalkyl group contains from one to about 36 carbons. The acid or nitrile reactant usually contains three to about forty carbons. Products made from halomethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic diacid derivatives such as maleic anhydride are particularly useful. Similarly useful products can be made from these condensation products by further reacting their acid, acid derivative or nitrile groups with alcohols, polyols, monoamines, polyamines, metal salts or metals.Type: GrantFiled: April 28, 1978Date of Patent: November 27, 1979Assignee: The Lubrizol CorporationInventor: David E. Ripple