Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Plural magnets or flux sources
Reexamination Certificate
2007-01-30
2007-01-30
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Plural magnets or flux sources
C335S006000, C335S021000, C335S038000, C335S166000, C335S167000, C335S170000, C335S171000, C335S179000, C361S042000
Reexamination Certificate
active
11184713
ABSTRACT:
A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure. In one embodiment, the permanent-magnet mechanism includes a frame assembly having a crossbeam, a frame pressure post and a core connecting post positioned at each side of the crossbeam, a core attached to the core connecting post and positioned inside a coil assembly, a spring sleeved on the core connecting post and positioned therebetween an inner cam of the coil assembly and the crossbeam of the frame assembly; a circuit-breaking coil and a circuit-connecting coil wound on the coil assembly, respectively, a permanently magnet positioned proximately to the core, a pair of movable contact arms with each having one movable contact positioned at each lateral side of the frame pressure post for communicating with the frame assembly, a pair of fixed contacts positioned above the corresponding movable contacts, and a metal oxide varistor with one end electrically connected to a first terminal of a power source directly and the other end electrically connected to a second terminal of the power source from a load side across a circuit breaker.
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Chen Wusheng
Dai Yong
Li Xiaoyong
Barrera Ramon M.
General Protecht Group Inc.
Morris Manning & Martin LLP
Tingkang Xia Tim
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