Patents by Inventor Nancy J. Bertrand
Nancy J. Bertrand 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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Patent number: 7662271Abstract: A lubricating oil (made from Group III base oil having a sequential number of carbon atoms) having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. A lubricating oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an antioxidant additive concentrate and c) no VI improver. A process comprising: a) hydroisomerization dewaxing of a waxy feed, b) fractionating the produced base oil, c) selecting a fraction having a VI greater than 150, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an antioxidant additive concentrate. Also, a method of improving the oxidation stability of a lubricating oil.Type: GrantFiled: December 21, 2005Date of Patent: February 16, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia Lemay, Rawls Frazier, Mark E. Okazaki
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Patent number: 7655133Abstract: An ashless lubricating oil, comprising a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a viscosity index greater than 130, low sulfur, and a sequential number of carbon atoms. The lubricating oil has a VI between 155 and 300, greater than 680 minutes in a rotary pressure vessel oxidation test, and a kinematic viscosity at 40° C. from 19.8 to 748 cSt. An ashless paper machine oil, comprising a base oil having a sequential number of carbon atoms, wherein the oil has a defined viscosity index and high oxidation stability. Also, an ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: GrantFiled: November 25, 2008Date of Patent: February 2, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls H. Frazier, Mark E. Okazaki
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Patent number: 7651985Abstract: A method for improving the oxidation stability of an ashless hydraulic fluid or an ashless paper machine oil, comprising: a. selecting a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a base oil viscosity index greater than 120, less than 0.03 wt % sulfur, a sequential number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 2.1; and b. replacing a portion of an original base oil in the ashless oil with the selected base oil to produce an improved ashless lubricating oil; wherein the improved ashless lubricating oil has a result in the rotary pressure vessel oxidation test that is at least 50 minutes greater than the result in the rotary pressure oxidation test of the ashless hydraulic fluid or ashless paper machine oil.Type: GrantFiled: August 6, 2008Date of Patent: January 26, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090321308Abstract: A method for producing a base oil having a high ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality by hydroisomerization dewaxing a selected Fischer-Tropsch wax under hydroisomerization conditions including a hydrogen to feed ratio from about 712.4 to about 3562 liter H2/liter oil.Type: ApplicationFiled: June 26, 2009Publication date: December 31, 2009Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Kamala Krishna, Stephen J. Miller, Susan M. Abernathy
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Publication number: 20090321307Abstract: A lubricating base oil manufacturing plant comprising a means for hydroisomerization dewaxing a wax at a specified hydrogen to feed ratio and a means for hydrofinishing the hydroisomerized wax to produce one or more base oils having greater than 10 weight percent total molecules with cycloparaffinic functionality and less than 0.5 weight percent molecules with multicycloparaffinic functionality.Type: ApplicationFiled: June 26, 2009Publication date: December 31, 2009Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Kamala Krishna, Stephen J. Miller, Susan M. Abernathy
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Publication number: 20090278077Abstract: A process to prepare a heat transfer oil, comprising: a. dewaxing a substantially paraffinic wax feed by hydroisomerization dewaxing using a shape selective intermediate pore size molecular sieve under hydroisomerization conditions including a defined hydrogen to feed ratio, whereby a lubricating base oil is produced, b. selecting one or more fractions of the lubricating base oil having: i. a low pour point, ii. greater than 10 weight percent and less than 70 weight percent total molecules with cycloparaffinic functionality, wherein the one or more fractions have at least 31.2 wt % 1-unsaturations by FIMS, and iii. a ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality greater than 15; and c. blending the one or more fractions of the lubricating base oil with less than 0.2 wt % antifoam agent to prepare the heat transfer oil of a defined ISO viscosity grade.Type: ApplicationFiled: July 16, 2009Publication date: November 12, 2009Inventors: Ravindra Shah, John M. Rosenbaum, Nancy J. Bertrand
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Publication number: 20090278079Abstract: A method to use a heat transfer oil, comprising: a. selecting a heat transfer oil having an auto ignition temperature greater than 329° C. (625° F.) and a viscosity index greater than 28×Ln(Kinematic Viscosity at 100° C., in cSt)+80; wherein the heat transfer oil comprises a base oil, made from a waxy feed, with the base oil having: i. greater than 10 weight percent and less than 70 weight percent total molecules with cycloparaffinic functionality, wherein the one or more fractions have at least 31.2 wt % 1-unsaturations by FIMS; b. providing the heat transfer oil to a mechanical system; and c. transferring heat in the mechanical system from a heat source to a heat sink.Type: ApplicationFiled: July 16, 2009Publication date: November 12, 2009Inventors: Ravindra Shah, John M. Rosenbaum, Nancy J. Bertrand
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Publication number: 20090272936Abstract: A heat transfer oil, comprising: a. a base oil fraction have a traction coefficient less than or equal to 0.015, when measured at a kinematic viscosity of 15 cSt and at a slide to roll ratio of 40 percent; and b. optionally, an antifoam agent; ?wherein the heat transfer oil has an auto ignition temperature greater than 329° C. (625° F.) and an ASTM Color less than 0.5.Type: ApplicationFiled: July 16, 2009Publication date: November 5, 2009Inventors: Ravindra Shah, John M. Rosenbaum, Nancy J. Bertrand
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Patent number: 7582591Abstract: Gear lubricant with a low Brookfield Ratio, comprising: a base oil having sequential carbon atoms, low aromatics, greater than 20 wt % molecules with cycloparaffins and a high ratio of monocycloparaffins to multicycloparaffins; less than 22 wt % of a second base oil having less than 40 wt % molecules with cycloparaffins and a lower ratio of monocycloparaffins to multicycloparaffins; a pour point depressant, an EP additive; and less than 10 wt % VI improver. Gear lubricant with a low Brookfield Ratio, comprising a first base oil having low aromatics and high VI; less than 22 wt % of a second base oil with a lower VI; a pour point depressant; and an EP additive. Gear lubricant having a low Brookfield Ratio comprising: an FT derived base oil; a pour point depressing base oil blending component; and an EP additive. Processes for making gear lubricants with low Brookfield Ratios. Method for reducing Brookfield Ratio.Type: GrantFiled: April 7, 2006Date of Patent: September 1, 2009Assignee: Chevron U.S.A. Inc.Inventors: Michael J. Haire, John A. Zakarian, John M. Rosenbaum, Nancy J. Bertrand, Stephen J. Miller
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Patent number: 7582200Abstract: A method of operating a hydraulic pump, comprising: a. filling a hydraulic system oil reservoir with a hydraulic oil comprising: i. a lubricant base oil having defined properties: and ii. an antiwear hydraulic oil additive package; wherein the hydraulic oil has an air release at 50° C. less than 0.8 minutes; and b. operating the hydraulic pump without pump cavitation. A hydraulic system, comprising a hydraulic system oil reservoir holding a hydraulic oil comprising: i. a lubricant base oil, optionally having defined properties; and b. an antiwear hydraulic oil additive package; wherein the hydraulic oil has an air release at 50° C. less than 0.8 minutes. In one embodiment the hydraulic oil additionally has low foam tendency and good demulsibility.Type: GrantFiled: June 30, 2008Date of Patent: September 1, 2009Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Susan M. Abernathy, Nancy J. Bertrand
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Patent number: 7569524Abstract: A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality, and d) blending the fraction with an ashless antioxidant. A process for making ashless paper machine oil, comprising: a. selecting two lubricating base oils both having a consecutive number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a viscosity index greater than 150; b. blending the two lubricating base oils with an ashless antioxidant additive concentrate and no viscosity index improver to make an ashless paper machine oil; wherein the ashless paper machine oil has a result of greater than 680 minutes in the rotary pressure vessel oxidation test.Type: GrantFiled: August 6, 2008Date of Patent: August 4, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090181871Abstract: A compressor lubricant composition providing energy savings and exhibiting excellent oxidation stability is provided. The composition comprises (i) 80 to 99.999 weight percent of an isomerized base oil; and (ii) 0.001-20 weight percent of at least an additive selected from an additive package, oxidation inhibitors, pour point depressants, metal deactivators, metal passivators, anti-foaming agents, friction modifiers, anti-wear agents, and mixtures thereof; wherein the isomerized base oil has consecutive numbers of carbon atoms, less than 0.05 wt. % aromatics, a ratio of molecules with monocycloparaffinic functionality to molecules with multicyloparaffinic functionality greater than 2. In one embodiment, compressors employing the lubricant composition with isomerized base oil consumes at least 1% less power than compressors employing the lubricant compositions of the prior art.Type: ApplicationFiled: June 4, 2008Publication date: July 16, 2009Inventors: Ravindra Shah, John M. Rosenbaum, Thierry Scholier, Marianne de Keyser, Nancy J. Bertrand
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Publication number: 20090163391Abstract: A power transmission fluid composition meeting required specifications of manufactures is provided. The power transmission fluid composition contains a sufficient amount of a Pour Point Reducing Blend Component for the power transmission fluid to have a Brookfield viscosity at ?40° C. of less than or equal to 16,000 cP. The Pour Point Reducing Blend Component is selected from an isomerized Fischer-Tropsch derived bottoms product, a bottoms product prepared from an isomerized highly waxy mineral oil, and mixtures thereof.Type: ApplicationFiled: June 4, 2008Publication date: June 25, 2009Inventors: John M. Zakarian, John M. Rosenbaum, Nancy J. Bertrand, Stephen J. Miller
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Patent number: 7547666Abstract: An ashless hydraulic fluid or paper machine oil having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. An ashless hydraulic fluid or paper machine oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an ashless antioxidant additive concentrate, and c) low amount of VI improver. A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an ashless antioxidant. Also, a method of improving the oxidation stability of an ashless hydraulic fluid or paper machine oil.Type: GrantFiled: December 21, 2005Date of Patent: June 16, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090075850Abstract: An ashless lubricating oil, comprising a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a viscosity index greater than 130, low sulfur, and a sequential number of carbon atoms. The lubricating oil has a VI between 155 and 300, greater than 680 minutes in a rotary pressure vessel oxidation test, and a kinematic viscosity at 40° C. from 19.8 to 748 cSt. An ashless paper machine oil, comprising a base oil having a sequential number of carbon atoms, wherein the oil has a defined viscosity index and high oxidation stability. Also, an ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: ApplicationFiled: November 25, 2008Publication date: March 19, 2009Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090062161Abstract: A lubricating oil comprising a base oil of specified carbon types, less than 5 wt % hydrocarbon solvent, and a detergent/dispersant additive package, wherein the lubricating oil has a blend kinematic viscosity at 100° C. of 6.5 mm2/s or greater, good low temperature fluidity, and a high exhaust smoke index. Also, similar lubricating oils made using a base oil made from a waxy feed, or comprising a base oil with a low Noack volatility and a pour point reducing blend component, or a base oil with a high viscosity index. Additionally, lubricating base oils meeting the requirements for two-cycle gasoline engine lubricants.Type: ApplicationFiled: August 27, 2007Publication date: March 5, 2009Inventors: Joseph Timar, Nancy J. Bertrand, John M. Rosenbaum, Joseph Pudlak, Stephen J. Miller
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Publication number: 20090062168Abstract: A process to prepare a lubricating oil meeting JASO M345:2003 requirements, comprising: hydroisomerization dewaxing a feed to produce a base oil and blending the base oil with less than 5 wt % solvent and a detergent/dispersant additive package. A process for making lubricating oil, comprising blending together a pour point reduced base oil blend with a detergent/dispersant additive package, a smoke-suppression agent, optionally a pour point depressant, and optionally less than about 5 wt % hydrocarbon solvent, whereby a two-cycle gasoline engine lubricant is produced. A process to make a two-cycle gasoline engine lubricant, comprising preparing a pour point reducing blend component by isomerizing a feed, blending it with a light distillate base oil to produce a pour point reduced base oil blend, and blending the pour point reduced base oil blend with a detergent/dispersant additive package and less than 5 wt % solvent. A lubricating oil made by the process described herein.Type: ApplicationFiled: August 27, 2007Publication date: March 5, 2009Inventors: Joseph Timar, Nancy J. Bertrand, John M. Rosenbaum, Joseph Pudlak, Stephen J. Miller
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Publication number: 20090036337Abstract: An electrical insulating oil composition comprising a heavy reformate as an anti-gassing agent is provided with excellent gassing tendency. In one embodiment, the composition displays a gassing performance of <30 ?L per minute as measured according to ASTM D-2300-1976. In a second embodiment, the composition displays a gassing performance of <0 ?L per minute. In a third embodiment, the composition displays a negative gassing tendency as low as <?70 ?L per minute.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: Chevron U.S.A. Inc.Inventors: Scott C. Deskin, John M. Rosenbaum, Nancy J. Bertrand, Doran Y. Lum, Thomas D'Amico, Ravindra Shah
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Publication number: 20090029883Abstract: A method for improving the oxidation stability of an ashless hydraulic fluid or an ashless paper machine oil, comprising: a. selecting a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a base oil viscosity index greater than 120, less than 0.03 wt % sulfur, a sequential number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 2.1; and b. replacing a portion of an original base oil in the ashless oil with the selected base oil to produce an improved ashless lubricating oil; wherein the improved ashless lubricating oil has a result in the rotary pressure vessel oxidation test that is at least 50 minutes greater than the result in the rotary pressure oxidation test of the ashless hydraulic fluid or ashless paper machine oil.Type: ApplicationFiled: August 6, 2008Publication date: January 29, 2009Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090029882Abstract: A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality, and d) blending the fraction with an ashless antioxidant. A process for making ashless paper machine oil, comprising: a. selecting two lubricating base oils both having a consecutive number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a viscosity index greater than 150; b. blending the two lubricating base oils with an ashless antioxidant additive concentrate and no viscosity index improver to make an ashless paper machine oil; wherein the ashless paper machine oil has a result of greater than 680 minutes in the rotary pressure vessel oxidation test.Type: ApplicationFiled: August 6, 2008Publication date: January 29, 2009Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki