Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Reexamination Certificate
2011-07-19
2011-07-19
Vortman, Anatoly (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
C337S059000, C337S062000, C337S072000, C337S097000
Reexamination Certificate
active
07982577
ABSTRACT:
A safety device for a switch includes a first terminal, a second terminal and a conductive plate connected between the two terminals. A first contact point is connected to an end of the second terminal. The conductive plate has a first end fixed to the first terminal and a second contact point connected to a second end of the conductive plate and corresponding to the first contact point. A push rod is located at a side of the conductive plate and a gap is defined between the distal end of the push rod and the conductive plate. The push rod pushes a mediate portion of the conductive plate when the mediate portion of the conductive plate is overheating to bend toward the push rod under a current overload condition. The push rod applies a force to further separate the first and second contact points so as to ensure the circuit is cut off.
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