Chemistry: analytical and immunological testing – Lubricant – grease – mineral oil – hydrocarbon oil product – or...
Reexamination Certificate
2007-02-02
2010-06-22
Griffin, Walter D (Department: 1797)
Chemistry: analytical and immunological testing
Lubricant, grease, mineral oil, hydrocarbon oil product, or...
C436S061000, C436S119000, C436S073000, C436S079000, C073S053050, C073S053010
Reexamination Certificate
active
07741122
ABSTRACT:
The present invention provides a method for determining the TBN of a used lubricating oil by measuring with a single device at least one element, such as sulfur, and correlating the measured amount to the oil's TBN. Preferably, a spectroscopic device is used to make the measurement.
REFERENCES:
patent: 4865754 (1989-09-01), Chang
patent: 5537336 (1996-07-01), Joyce
patent: 5558802 (1996-09-01), Dowling
patent: 5800782 (1998-09-01), Hagstrom et al.
patent: 5982847 (1999-11-01), Nelson
patent: 5987976 (1999-11-01), Sarangapani
patent: 6561010 (2003-05-01), Wilson et al.
patent: 6779505 (2004-08-01), Reischman et al.
patent: 2001/0013247 (2001-08-01), Wilson et al.
patent: 2003/0101801 (2003-06-01), Wilson et al.
patent: 2003/0164451 (2003-09-01), Reischman et al.
patent: 2003/0194811 (2003-10-01), Reischman et al.
patent: 2004/0123644 (2004-07-01), Jakoby et al.
patent: 9802773 (1998-07-01), None
patent: 2003080671 (2003-10-01), None
patent: 1786433 (1993-01-01), None
patent: WO01/36966 (2000-11-01), None
Joanna A. Wolska, et al., “A Powerful Oil Analysis Tool,”Practicing Oil Analysis, May/Jun. 2004, pp. 20-23.
J. Christopher, et al., “Determination of sulphur in trace levels in petroleum products by wavelength-dispersive X-ray fluorescence spectroscopy”,Fuel, 80 (2001), pp. 1975-1979.
“Asoma Perfects Two Applications for Energy Dispersive X-Ray Fluorescence Analyzer”,Fuel Technology&Management, V8, N. 7, Sep.-Oct. 1998), pp. 60-61.
Wang Ziping, et al., “Sulfur Analysis and Monitoring of Oil and Gas in Petrochemical Enterprises”,Petroleum Refinery Engineering, 29/8, (Aug. 1999), pp. 68-72.
Mariko Kato, et al., “Evaluation of Useful Lifetime of Gas Engine Lubrication Oils—Suggestion of New Methods for Oil Analysis and Evaluation of Degradation of Full-synthetic Long Life Lubrication Oils”,Journal of the Japan Petroleum Institute, 45, (1), (2002), pp. 1-9.
J. George Wills, “Lubrication Fundamentals”, Mobil Oil Reference Books, 1980, Publisher: Marcel Dekker, Inc., New York, pp. 34-45.
“Guidelines for the Lubrication of Medium Speed Diesel Engines”,CIMAC, No. 13, 1994.
“Guidelines for the Lubrication of Two-Stroke Crosshead Diesel Engines”,CIMAC, No. 15, 1997.
ExxonMobil Research and Engineering Company
Griffin Walter D
Katz Gary P
Mui Christine T
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