Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate
2005-12-13
2005-12-13
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
Reexamination Certificate
active
06975491
ABSTRACT:
An apparatus and method for protecting against electrocution hazards that arise when an appliance is electrically connected to a miswired single-phase AC electrical source are described. Protection is provided against miswiring conditions that cause the putative ground line of the electrical source to be either electrically energized or to be electrically open. The apparatus includes one or more sensors that detect if the electrical source is miswired and operate one or more switches which preclude electrical continuity to one or more of the electrical lines of the appliance if a miswiring is detected. The method includes the steps of detecting if the putative ground of the electrical source is electrically energized, and if it is, then precluding electrical continuity between the putative ground of the electrical source and the ground of the appliance.
REFERENCES:
patent: 3810003 (1974-05-01), Portoulas
patent: 3967195 (1976-06-01), Averitt et al.
patent: 4707759 (1987-11-01), Bodkin
patent: 4843514 (1989-06-01), Bodkin
patent: 4929887 (1990-05-01), Robitaille et al.
patent: 5606480 (1997-02-01), Nevo
patent: 5754114 (1998-05-01), Gnadt
patent: 5973896 (1999-10-01), Hirsh et al.
patent: 6023400 (2000-02-01), Nevo
patent: 6072317 (2000-06-01), Mackenzie
patent: 6437951 (2002-08-01), Ahlstrom et al.
Benenson Boris
Friedman Barry I.
Jackson Stephen W.
Metz Lewis LLC
LandOfFree
Electrical ground protection device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical ground protection device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical ground protection device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3497361