Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Reexamination Certificate
2005-08-16
2005-08-16
Cygan, Michael (Department: 2855)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
C073S053010, C073S053070, C073S061710, C073S061720, C324S071400
Reexamination Certificate
active
06928861
ABSTRACT:
The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method comprising a particle analysis of suspended particles and sediment contained in the liquid. The analysis method can further comprise a chemical analysis of the insulating liquid. This analysis results in profiles of the liquid that give an accurate indication of the maintenance state of the electric device.
REFERENCES:
patent: 3619072 (1971-11-01), O'Hara et al.
patent: 4402211 (1983-09-01), Sugawara et al.
patent: 4492461 (1985-01-01), Jones et al.
patent: 4502320 (1985-03-01), Sakai et al.
patent: 4506960 (1985-03-01), Waggoner et al.
patent: 4625923 (1986-12-01), Fishgal
patent: 4894532 (1990-01-01), Peterson et al.
patent: 4925627 (1990-05-01), Johnson
patent: 4961845 (1990-10-01), Dawson et al.
patent: 5071527 (1991-12-01), Kauffman
patent: 5194910 (1993-03-01), Kirkpatrick et al.
patent: 5210704 (1993-05-01), Husseiny
patent: 5271263 (1993-12-01), Gibeault
patent: 5313824 (1994-05-01), Herguth et al.
patent: 5343045 (1994-08-01), Gupta
patent: 5377531 (1995-01-01), Gomm
patent: 5506501 (1996-04-01), Fogel et al.
patent: 5508624 (1996-04-01), Chon et al.
patent: 5517427 (1996-05-01), Joyce
patent: 5531129 (1996-07-01), Thornton et al.
patent: 5572320 (1996-11-01), Reintjes et al.
patent: 5586161 (1996-12-01), Russell et al.
patent: 5604441 (1997-02-01), Freese et al.
patent: 5614830 (1997-03-01), Dickert et al.
patent: 5646047 (1997-07-01), Bird et al.
patent: 5659126 (1997-08-01), Farber
patent: 5674401 (1997-10-01), Dickert et al.
patent: 5691706 (1997-11-01), Butler et al.
patent: 5739916 (1998-04-01), Englehaupt
patent: 5754055 (1998-05-01), McAdoo et al.
patent: 5811664 (1998-09-01), Whittington et al.
patent: 5817928 (1998-10-01), Garvey, III et al.
patent: 5824889 (1998-10-01), Park et al.
patent: 5834642 (1998-11-01), Decain et al.
patent: 5852404 (1998-12-01), Amini
patent: 5889683 (1999-03-01), Ismail et al.
patent: 5936715 (1999-08-01), Shapanus et al.
patent: 6085576 (2000-07-01), Sunshine et al.
patent: 0104859 (1989-02-01), None
patent: WO 10/20323 (2001-03-01), None
Kirtley, Jr. et al. “Monitoring the Health of Power Transformers” IEEE Computer Applications in Power, Jan. 1996, pp. 18-23.
Cygan Michael
Hahn Loeser & Parks LLP
LandOfFree
Method for a reliability assessment, failure prediction and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for a reliability assessment, failure prediction and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for a reliability assessment, failure prediction and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3508017