Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate
2006-11-21
2006-11-21
Enad, Elvin (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
C335S195000
Reexamination Certificate
active
07138892
ABSTRACT:
In accordance with one embodiment, the present technique provides a circuit interrupter. The exemplary circuit interrupter includes conductive spanner that completes an electrical pathway between first and second electrical conductors. To facilitate a good electrical connection between the conductive spanner and the first and second conductors, the exemplary interrupter includes a biasing mechanism that biases the conductive spanner toward the first and second conductors. However, in the event of a fault condition, for instance, the conductive spanner is displaced away from the first and second conductors by magnetic forces, and the electrical path is interrupted. To facilitate this displacement, the biasing mechanism presents an opposing force to displacement relationship with a negative slope. That is to say, the biasing force provided by the biasing mechanism decreases as the distance between the conductive spanner and the first and second electrical conductors increases. Additionally, pistons driven by arc heated gases engage the biasing mechanism to assist the magnetic forces during the interruption of soft faults.
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patent: 5834723 (1998-11-01), Wieloch
Benard David J.
Clayton Mark A.
Enad Elvin
Gerasimow Alexander M.
Rockwell Automation Technologies Inc.
Rojas Bernard
Yoder Patrick S.
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