High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Air-current blowout
Reexamination Certificate
2008-10-02
2011-10-25
Luebke, Renee S (Department: 2833)
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Air-current blowout
C218S043000
Reexamination Certificate
active
08044318
ABSTRACT:
A current interrupting chamber comprising a moving assembly movable axially between a start position and an end position of an operation of opening the circuit-breaker. The current interrupting chamber includes a first compression chamber; a hollow drive tube having ports for bringing the interior of the drive tube into communication with the outside of the current interrupting chamber; a second compression chamber; and a structure for obstructing the ports of the drive tube from the start position of an operation of opening the circuit-breaker and up to an intermediate position which is reached between the position of separation of two arcing contacts from each other and the end position of an operation of opening the circuit-breaker.
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Preliminary Search Report for French Application No. 07 06923 mailed Apr. 3, 2008.
Dufournet Denis
Penache Dan
Perret Michel
Tresy Michel
Areva T&D SA
Fishman Marina
Luebke Renee S
Nixon & Peabody LLP
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