Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate
2007-06-19
2007-06-19
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
Reexamination Certificate
active
10715182
ABSTRACT:
The present invention is a method and apparatus for protecting a power supply from electrical faults. The present invention operates substantially independently of the current drawn by the load. In addition, the present invention includes a time delay circuitry for preventing false detection of ground faults when the power source is connecting to the load. In a preferred embodiment, the apparatus of the present invention includes a control circuitry for connecting the power supply to the load. The apparatus also preferably includes a sensor circuitry for detecting electrical faults, including ground, transient, and arc faults, and triggering the control circuitry to disconnect the power source from the electrical faults when electrical faults are detected. Thus, the present invention can protect wiring and load connections from improper operation and fire hazards that may be caused by electrical faults. Finally, the apparatus preferably includes a fault protection condition indicator to indicate whether the circuit breaker circuitry is working properly.
REFERENCES:
patent: 3634729 (1972-01-01), Hendry
patent: 3766435 (1973-10-01), Childers
patent: 3968410 (1976-07-01), Graham
patent: 3992650 (1976-11-01), Iwasa et al.
patent: 4068149 (1978-01-01), Wuchinich
patent: 4068276 (1978-01-01), Pintell
patent: 4079211 (1978-03-01), Janssen
patent: 4121122 (1978-10-01), Pokrandt
patent: 4412267 (1983-10-01), Hansen
patent: 4580186 (1986-04-01), Parker et al.
patent: 4672175 (1987-06-01), Niven
patent: 4860154 (1989-08-01), Fazlollahi
patent: 4878034 (1989-10-01), Gross et al.
patent: 4947278 (1990-08-01), Nichols, III
patent: 4949214 (1990-08-01), Spencer
patent: 4992904 (1991-02-01), Spencer et al.
patent: 5055703 (1991-10-01), Schornack
patent: 5185684 (1993-02-01), Beihoff et al.
patent: 5237480 (1993-08-01), Dara
patent: 5424894 (1995-06-01), Briscall et al.
patent: 5532898 (1996-07-01), Price
patent: 5576615 (1996-11-01), Marshall et al.
patent: 5606482 (1997-02-01), Witmer
patent: 5627411 (1997-05-01), Bochenek
patent: 5657195 (1997-08-01), Rault
patent: 5659894 (1997-08-01), Bayruns et al.
patent: 5691869 (1997-11-01), Engel et al.
patent: 5825602 (1998-10-01), Tosaka et al.
patent: 5864456 (1999-01-01), Connor
patent: 5867358 (1999-02-01), Campbell
patent: 5883578 (1999-03-01), Roberts et al.
patent: 5933311 (1999-08-01), Chen et al.
patent: 5946179 (1999-08-01), Fleege et al.
patent: 5986860 (1999-11-01), Scott
patent: 5999384 (1999-12-01), Chen et al.
patent: 6034446 (2000-03-01), Kowalski et al.
patent: 6057997 (2000-05-01), Mackenzie et al.
patent: 6198611 (2001-03-01), Macbeth
patent: 54-147875 (1979-11-01), None
Quong, Resettable electronic fuse consists of SCR and relay; Sep. 15, 1977, Electronics, vol. 50, No. 19, p. 117.
Langford Joseph Andrew
Osberne Gregory Warren
Jackson Stephen W.
Jones Day
Premier Aviation, Inc.
Thomas Lucy
LandOfFree
Method and apparatus for detecting electrical faults 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 and apparatus for detecting electrical faults and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting electrical faults and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3822000