Patents by Inventor Allan G. Hee

Allan G. Hee 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).

  • Patent number: 8051020
    Abstract: A method for predicting properties of lubricant base oil blends, comprising the steps of generating an NMR spectrum, HPLC-UV spectrum, and FIMS spectrum of a sample of a blend of at least two lubricant base oils and determining at least one composite structural molecular parameter of the sample from said spectrums. SIMDIST and HPO analyses of the sample are then generated in order to determine a composite boiling point distribution and molecular weight of the sample from such analysis. A composite structural molecular parameter is applied, and the composite boiling point distribution and the composite molecular weight to a trained neural network is trained to correlate with the composite structural molecular parameter composite boiling point distribution and the composite molecular weight so as to predict composite properties of the sample. The properties comprise Kinematic Viscosity at 40 C, Kinematic Viscosity at 100 C, Viscosity Index, Cloud Point, and Oxidation Performance.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 1, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Ajit Ramchandra Pradhan, John M. Rosenbaum, Nancy J. Bertrand, David C. Kramer, Allan G. Hee, Max I. Chang
  • Publication number: 20110166052
    Abstract: A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80° C. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Patent number: 7932217
    Abstract: A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: April 26, 2011
    Assignee: Chevron U.S.A., Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20100286457
    Abstract: A gear oil composition is provided. The composition comprises a synergistic blend of mineral oil base stock and polyalphaolefin (PAO) base stock for the oil composition to have a traction coefficient at a slide to roll ratio of 40 percent at 15 mm2/s. of 0.030 or less and a pressure viscosity coefficient of at least 16.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the synergistic amount of PAO base stock ranges from 5 to 48 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: June 23, 2010
    Publication date: November 11, 2010
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20100049681
    Abstract: A method for predicting properties of lubricant base oil blends, comprising the steps of generating an NMR spectrum, HPLC-UV spectrum, and FIMS spectrum of a sample of a blend of at least two lubricant base oils and determining at least one composite structural molecular parameter of the sample from said spectrums. SIMDIST and HPO analyses of the sample are then generated in order to determine a composite boiling point distribution and molecular weight of the sample from such analysis. A composite structural molecular parameter is applied, and the composite boiling point distribution and the composite molecular weight to a trained neural network is trained to correlate with the composite structural molecular parameter composite boiling point distribution and the composite molecular weight so as to predict composite properties of the sample. The properties comprise Kinematic Viscosity at 40 C, Kinematic Viscosity at 100 C, Viscosity Index, Cloud Point, and Oxidation Performance.
    Type: Application
    Filed: December 17, 2008
    Publication date: February 25, 2010
    Inventors: Ajit Ramchandra Pradhan, John M. Rosenbaum, Nancy J. Bertrand, David C. Kramer, Allan G. Hee, Max I. Chang
  • Publication number: 20090088355
    Abstract: A gear oil composition is provided. The composition comprises a synergistic blend of mineral oil base stock and polyalphaolefin (PAO) base stock for the oil composition to have a traction coefficient at a slide to roll ratio of 40 percent at 15 mm2/s. of 0.030 or less and a pressure viscosity coefficient of at least 16.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the synergistic amount of PAO base stock ranges from 5 to 48 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20090088356
    Abstract: A gear oil composition is provided. The composition comprises a synergistic blend of mineral oil base stock and polyalphaolefin (PAO) base stock for the oil composition to have a traction coefficient at a slide to roll ratio of 40 percent at 15 mm2/s. of 0.030 or less and a pressure viscosity coefficient of at least 16.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the synergistic amount of PAO base stock ranges from 5 to 48 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: June 4, 2008
    Publication date: April 2, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20090062162
    Abstract: A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80° C. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20090062164
    Abstract: A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt% naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.
    Type: Application
    Filed: June 4, 2008
    Publication date: March 5, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Publication number: 20090062166
    Abstract: A slideway lubricant composition is provided. The composition comprises a sufficient amount of an isomerized base oil having consecutive numbers of carbon atoms and has less than 10 wt % naphthenic carbon by n-d-M for the composition to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002. In one embodiment, the composition contains none if little demulsifying additives. In another embodiment, the composition meets machine tool and pneumatic tool builders, including but not limited to Cincinnati Milacron Specifications of P47, P50 and P53 for Grades 68, 220 and 32.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Alex Munoz
  • Publication number: 20090062163
    Abstract: A gear oil composition is provided. The composition comprises an isomerized base oil having consecutive numbers of carbon atoms, less than 0.05 wt. % aromatics, a viscosity index between 150 and 170, Oxidator BN of 15 to 50 hours; and 0.001 to 30 wt % at least an additive selected from traction reducers, dispersants, viscosity modifiers, pour point depressants, antifoaming agents, antioxidants, rust inhibitors, metal passivators, extreme pressure agents, friction modifiers, and mixtures thereof. In one embodiment, composition displays a pressure viscosity coefficient of greater than 9.5 GPa?1 at 140° C. and a Timken OK load per D2782 (E2006) of at least 50 lbs.
    Type: Application
    Filed: June 4, 2008
    Publication date: March 5, 2009
    Inventors: Michael J. Haire, Ravindra Shah, Allan G. Hee, Marissa B. Ferrer
  • Publication number: 20090036338
    Abstract: A metalworking fluid composition comprising an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M is provided. The metalworking fluid has reduced mist formation, low foaming tendency and excellent air release properties.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Applicant: Chevron U.S.A. Inc.
    Inventors: Allan G. Hee, Alex Munoz, Katrina Pass, Emerson Castro