Automatic determination of moisture content and lubricant type

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5656767
SERIAL NO

08614817

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for automatically detecting a lubricant type and the relative quantity of water present in a test sample of lubricating oil includes the use of an open grid capacitive sensor element that incorporates the lubricating oil as a dielectric medium. The sensor element grid is energized by a frequency variable oscillator that automatically responds to changes in the oil dielectric constant with corresponding frequency changes. As a reference, a sample of new or uncontaminated test oil is confined in wet surface contact with the energized, open grid sensor element. Oscillator frequency changes are measured and recorded, either continuously or at frequent intervals, over a standardized elapsed time interval to generate a reference characterization of the frequency-time relationship distinctive of the particular oil. The same is repeated for a sample of contaminated oil and a corresponding frequency-time relationship generated. Water affinity rate correlations between frequency change and respective states of moisture content are determined and data base recorded. The affinity rate correlations are applied to the respective frequency differentials between the contaminated oil and uncontaminated oil at the end of the test period. Data bases are also recorded of correlations between natural frequency and sample temperature changes that distinguish lubricants by type, use classification or quantity of additive content.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COMPUTATIONAL SYSTEMS, INC.KNOXVILLE, TN77

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carey, Alexander Andrew Lenoir City, TN 4 53
Garvey, III Raymond E Loudon, TN 6 210

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 4492461 Wear analysis equipment 11 1982
* 5067345 Method and apparatus for measuring and calculating bulk water in crude oil or bulk water in steam 23 1990
 
CARROLL, NOEL, SHERBROOKE ROAD, SHERBROOKE 3789, VICTORIA, AUSTRALIA (1)
* 4815536 Analysis of multi-phase mixtures 11 1987
 
Vickers, Incorporated (1)
* 4831362 Failure detection system for a metallic debris detection system 31 1986
 
Agar Corporation Inc. (1)
* 5101367 Apparatus for determining the percentage of a fluid in a mixture of fluids 12 1991
 
The Lubrizol Corporation (1)
* 4791374 Acid sensor 29 1986
 
NISSAN MOTOR CO., LTD. (2)
* 4646070 Oil deterioration detector method and apparatus 91 1982
* 4796204 Oil degradation warning system 40 1985
 
Combustion Engineering, Inc. (1)
* 4701713 Oil and fuel contamination monitoring system 17 1984
 
INTEVEP, S.A. (1)
* 5260667 Method and apparatus for determining the percentage water condent of oil in water emulsion by specific admittance measurement 29 1991
 
Halliburton Logging Services, Inc. (1)
* 5132903 Dielectric measuring apparatus for determining oil and water mixtures in a well borehole 49 1990
 
AISIN SEIKI KABUSHIKI KAISHA (1)
* 4677847 Automotive engine oil monitoring system 53 1985
 
THERMO KING CORPORATION (1)
* 4741204 Measurement of the depletion of basic additives in lubricating oil 17 1987
 
Tribometrics, Inc. (1)
* 4692698 Method and device including a bed of ferromagnetic fibers and magnetic flux sensor for measuring the amount of magnetic particles on a liquid 12 1986
 
Aichi Steel Works, Ltd. (1)
* 4857829 Water-soluble oil property detection device 17 1988
 
Paul-Munroe Engineering (1)
* 5363696 Method and arrangement for oil well test system 10 1993
 
TEXACO INC. (2)
* 5272444 Dielectric cross-plot water cut monitoring apparatus and method 18 1991
* 5249455 B S & W measuring means and method 21 1991
 
GAISFORD, SCOTT (1)
* 5259239 Hydrocarbon mass flow meter 39 1992
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ROCKWELL AUTOMATION, INC. (1)
6449580 Evaluating properties of oil using dielectric spectroscopy 20 1998
 
GENERAL ELECTRIC COMPANY (1)
* 2012/0256,640 APPARATUS AND METHODS FOR USE IN DETERMINING THE PRESENCE OF MATERIALS ENTRAINED WITHIN A MEDIUM 0 2011
 
Other [Check patent profile for assignment information] (1)
* 2010/0089,131 MEMS-based sensor for lubricant analysis 1 2009
 
ORION TECHNOLOGIES, CORP. (1)
* 2012/0160,020 APPARATUS AND METHOD FOR MOISTURE DETECTION IN A REFRIDGERANT/OIL MIXTURE 0 2010
 
The Lubrizol Corporation (9)
6463796 Continuous on-board diagnostic lubricant monitoring system and method 23 2000
6577112 Method and apparatus for on-line monitoring of quality and/or condition of highly resistive fluids 14 2001
6644095 Continuous on-board diagnostic lubricant monitoring system and method 33 2002
6861851 Method for on-line monitoring of quality and condition of non-aqueous fluids 6 2002
* 2004/0075,448 Method for on-line monitoring of quality and condition of non-aqueous fluids 2 2002
* 2005/0248,358 Method for on-line monitoring of condition of non-aqueous fluids 3 2004
7259575 Method for on-line fuel-dilution monitoring of engine lubricant 1 2005
* 2006/0229,776 Method for on-line fuel-dilution monitoring of engine lubricant 3 2005
7355415 Method for on-line monitoring of condition of non-aqueous fluids 2 2006
 
EMERSON ELECTRIC CO. (4)
9285802 Residential solutions HVAC monitoring and diagnosis 0 2012
9551504 HVAC system remote monitoring and diagnosis 0 2014
9638436 HVAC system remote monitoring and diagnosis 0 2014
9703287 Remote HVAC monitoring and diagnosis 0 2014
 
Phase Dynamics, Inc. (2)
* 7648836 Moisture and sediment analysis 1 2005
7927875 Moisture and sediment analysis 0 2009
 
VAISALA OYJ (1)
6809528 Method and apparatus for measuring water content 1 2002
 
INTEVEP, S.A. (1)
* 2015/0293,047 METHOD AND APPARATUS FOR DETERMINING WATER CONTENT OF OIL AND WATER MIXTURES BY MEASUREMENT OF SPECIFIC ADMITTANCE 0 2014
 
AgriChem, Inc. (3)
* 2009/0223,578 FLUSH-MOUNTED CAPACITIVE SENSOR MOUNT 1 2008
* 2011/0101,997 Flush-Mounted Capacitive Sensor Mount 2 2010
* 2011/0109,328 Flush-Mounted Capacitive Sensor Mount 1 2011
 
MEDTRONIC, INC. (1)
6582661 Integrated lubricant analyzer 9 2000
 
DELPHI TECHNOLOGIES, INC. (5)
6911830 Diesel engine lubricating oil contaminant sensor method 14 2002
* 6891383 Soot detector for engine oil 10 2003
* 2005/0057,267 SOOT DETECTOR FOR ENGINE OIL 1 2003
7064562 Temperature compensation method for soot sensor 2 2004
* 2005/0017,738 Temperature compensation method for soot sensor 1 2004
 
EMERSON CLIMATE TECHNOLOGIES, INC. (23)
* 7290989 Compressor protection and diagnostic system 30 2004
* 2005/0196,285 Compressor protection and diagnostic system 9 2004
7648342 Compressor protection and diagnostic system 23 2006
7491034 Compressor protection and diagnostic system 34 2006
* 2006/0222,507 Compressor protection and diagnostic system 25 2006
* 2006/0182,635 Compressor protection and diagnostic system 17 2006
8590325 Protection and diagnostic module for a refrigeration system 3 2007
8393169 Refrigeration monitoring system and method 13 2008
9304521 Air filter monitoring system 0 2011
9310094 Portable method and apparatus for monitoring refrigerant-cycle systems 0 2012
9046900 Method and apparatus for monitoring refrigeration-cycle systems 0 2013
9651286 Refrigeration monitoring system and method 0 2013
9086704 Method and apparatus for monitoring a refrigeration-cycle system 0 2013
9081394 Method and apparatus for monitoring a refrigeration-cycle system 0 2013
9023136 Method and apparatus for monitoring a refrigeration-cycle system 0 2013
9021819 Method and apparatus for monitoring a refrigeration-cycle system 0 2013
9017461 Method and apparatus for monitoring a refrigeration-cycle system 0 2013
8974573 Method and apparatus for monitoring a refrigeration-cycle system 1 2013
9480177 Compressor protection module 1 2013
9310439 Compressor having a control and diagnostic module 6 2013
9765979 Heat-pump system with refrigerant charge diagnostics 0 2014
9690307 Method and apparatus for monitoring refrigeration-cycle systems 0 2015
9669498 Compressor diagnostic and protection system and method 0 2015
 
VOLKSWAGEN AG (1)
* 6223589 Oil quality sensor 35 1999
 
REID ASSET MANAGEMENT (2)
7541004 MEMS-based sensor for lubricant analysis 24 2004
* 2006/0105,467 MEMS-based sensor for lubricant analysis 24 2004
 
COMPUTATIONAL SYSTEMS, INC. (3)
6839660 On-line rotating equipment monitoring device 24 2002
7142990 Machine fault information detection and reporting 28 2003
* 2004/0019,461 Machine fault information detection and reporting 5 2003
 
ABB TECHNOLOGY AG (2)
6870374 Process for identifying abnormalities in power transformers 5 2002
* 2003/0189,431 Process for identifying abnormalities in power transformers 1 2002
 
VERSUM MATERIALS US, LLC (1)
* 2005/0079,803 Chemical-mechanical planarization composition having PVNO and associated method for use 17 2003
 
Trico Corporation (9)
7862875 Flinger disc 4 2007
8220671 Lubricant dispenser with nozzle 0 2008
8096164 Apparatus and methods for management of fluid condition 4 2009
8147683 Portable lubricant filtration system and method 4 2010
8147684 Apparatus and methods for lubricant filtration and drum pump filtration system 5 2010
D696956 Lubricant dispenser 1 2012
D687921 Lubricant dispenser 0 2012
D687922 Lubricant dispenser 0 2012
D687923 Lubricant dispensing nozzle 2 2012
 
NOKIA CORPORATION (1)
* 2004/0236,706 Automated machinery lubrication service and maintenance planning system 3 2004
 
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT (2)
* 8539778 Air filter having a moisture sensor for identifying type of filter and moisture content and method of using filter in a vehicle air conditioning system 1 2010
* 2010/0144,262 Air Filter for a Vehicle Air Conditioning System, Vehicle Air Conditioning System Comprising an Air Filter with a Moisture Sensor and a Method for Operating a Vehicle Air Conditioning System 0 2010
* Cited By Examiner