Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means
Reexamination Certificate
2005-08-09
2005-08-09
Sircus, Brian (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific quantity comparison means
Reexamination Certificate
active
06927959
ABSTRACT:
Switching contacts of a switching device are provided to ensure optimum service life. An optimum switching point, in terms of the load of one of the switching contacts, is determined depending on a current path that is measured during the switching process and the switching point is shifted by a delay time from switching operation to switching operation. The optimal switching point is preferably determined by self-calibration of the switching device.
REFERENCES:
patent: 4672501 (1987-06-01), Bilac et al.
patent: 5361184 (1994-11-01), El-Sharkawi et al.
patent: 5430599 (1995-07-01), Charpentier et al.
patent: 5440180 (1995-08-01), DeVault et al.
patent: 5638296 (1997-06-01), Johnson et al.
patent: 5684668 (1997-11-01), Muramatsu et al.
patent: 5808851 (1998-09-01), Birrell
patent: 5875087 (1999-02-01), Spencer et al.
patent: 5963021 (1999-10-01), Rostron et al.
patent: 6765316 (2004-07-01), Elsner et al.
patent: 41 05 698 (1992-08-01), None
patent: 198 08 299 (1999-09-01), None
patent: 0 575 792 (1993-12-01), None
Herbst Reinhard
Mitlmeier Norbert
Demakis James A.
Siemens Aktiengesellschaft
Sircus Brian
LandOfFree
Method for operating an electromagnetic switching device 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 operating an electromagnetic switching device and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for operating an electromagnetic switching device and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3467449