Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Reexamination Certificate
2005-06-21
2009-06-23
Nguyen, Vincent Q (Department: 2831)
Electricity: measuring and testing
Testing potential in specific environment
Voltage probe
C324S658000, C324S076110, C324S11700H
Reexamination Certificate
active
07550960
ABSTRACT:
A method and apparatus for determining a voltage potential in a power switching device. The method and apparatus uses a conductive shield surrounding a coil positioned around a connector in a power switching device. The coil is used to provide a current measuring device within the power switching device. The combination of the shield, connector and the dielectric between them forms a capacitor, which is the high voltage leg of a capacitive voltage divider circuit. The capacitive voltage divider has a low voltage leg made of one or more capacitors. The capacitors of the low voltage leg may be removed in order to adjust the output of the capacitive voltage divider. The output of the voltage divider circuit is measured, converted and displayed to a user.
REFERENCES:
patent: 2327774 (1943-08-01), Dickson
patent: 2947958 (1960-08-01), Marks
patent: 3222625 (1965-12-01), Ledocq
patent: 3380009 (1968-04-01), Miller
patent: 3729675 (1973-04-01), Vosteen
patent: 3851287 (1974-11-01), Miller et al.
patent: 3939412 (1976-02-01), Hermstein
patent: 4074193 (1978-02-01), Kohler
patent: 4241373 (1980-12-01), Mara et al.
patent: 4316254 (1982-02-01), Levin
patent: 4611191 (1986-09-01), Souchere
patent: 4804908 (1989-02-01), Mitchell
patent: 4963819 (1990-10-01), Clarke et al.
patent: 4999570 (1991-03-01), Ehrler
patent: 5107201 (1992-04-01), Ogle
patent: 5432438 (1995-07-01), Baumgartner et al.
patent: 5471144 (1995-11-01), Meyer
patent: 6344959 (2002-02-01), Milazzo
patent: 6489782 (2002-12-01), Baier et al.
patent: 6529013 (2003-03-01), Skendzic et al.
patent: 6717395 (2004-04-01), Skendzic et al.
patent: 6888086 (2005-05-01), Daharsh et al.
patent: 6965199 (2005-11-01), Stoner et al.
PCT Search Report, Oct. 24, 2005.
Barbour Erskine R.
Glinkowski Mietek T.
ABB Technology AG
Nguyen Vincent Q
Prewitt Michael C.
Shang Bryan A.
LandOfFree
Method and apparatus for measuring voltage in a power... 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 and apparatus for measuring voltage in a power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring voltage in a power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4105783