Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate
2011-07-12
2011-07-12
Mai, Anh T (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
C335S006000, C335S018000, C335S021000, C335S034000, C335S046000, C335S113000, C335S168000, C361S042000
Reexamination Certificate
active
07978032
ABSTRACT:
A locking mechanism for protecting a ground fault circuit interrupter (GFCI) from being faultily reset. In one embodiment, the locking mechanism has a blocking member secured onto a lateral side of the movable assembly, a resilient member, and a locking member having a first end portion positioned against the resilient member, a second end portion positioned in relation to the blocking member, and a body portion defined between the first end portion and the second end portion. When the movable assembly is in a first (tripping) position, the expanding force of the resilient member applied to the first end portion of the locking member causes the second end portion of the locking member to be positioned against the blocking member so that no movement of the movable assembly from the first position to a second (resetting) position is allowed.
REFERENCES:
patent: 5831503 (1998-11-01), Beck et al.
patent: 6246558 (2001-06-01), DiSalvo et al.
patent: 2002/0135958 (2002-09-01), Germain et al.
patent: 2003/0085783 (2003-05-01), Macbeth
Chen Wusheng
Song Huaiyin
Wang Fu
General Protecht Group Inc.
Mai Anh T
Morris Manning & Martin LLP
Musleh Mohamad A
Tingkang Xia Tim
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