Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate
2006-02-27
2009-12-15
Jackson, Stephen W (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
Reexamination Certificate
active
07633726
ABSTRACT:
This invention provides protection against an electricity leak and prevents error in reverse wiring. Also, when the ground fault circuit interrupter has come to the end of its life and its functions fail, it can set off an alarm prompt signal, reminding the user to replace the interrupter in a prompt manner; when a certain part or accessory of the ground fault circuit interrupter fails, especially when the primary electromagnetic coil cannot work in a normal manner, the power output of the interrupter may be cut off through the secondary electromagnetic coil; or the test button may be pressed to mechanically cut off the power output of the interrupter. This invention has powerful applications, with good safe guard and is safe to use, thus effectively ensuring the personal safety of the user as well as the safety of the appliances.
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Huang Huadao
Lu Huayang
Andrews & Kurth LLP
Chao Fei-Fei
Hoang Ann T
Jackson Stephen W
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