Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Reexamination Certificate
2008-11-25
2010-10-05
Gandhi, Jayprakash N (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
C337S036000, C337S003000, C337S004000, C337S013000, C361S105000
Reexamination Certificate
active
07808361
ABSTRACT:
A dual protection device includes a cover, a first protection unit, a second protection unit and a base. The first protection unit includes an elastic contact piece and a first conductive member. The elastic contact piece has a first end fixed to the cover and a second end including a first contact point. The first conductive member has a second contact point to contact with the first contact point. The elastic contact piece bends to separate the first contact point from the second contact point when overloaded. The second protection unit has a second conductive member, which is respectively connected with the first conductive member and a second terminal by fuse members. A biasing member is compressed between the second conductive member and the base so as to separate the second terminal from the second conductive member when the fuse members melt.
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Gandhi Jayprakash N
Thomas Bradley H
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