High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Housing structure
Reexamination Certificate
2008-06-16
2009-08-25
Freidhofer, Michael A (Department: 2832)
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Housing structure
C218S146000
Reexamination Certificate
active
07579572
ABSTRACT:
An electrical switch which includes an insulative housing having a wall defining an axial bore therein, a first electrical contact disposed in the housing bore and a second electrical contact movably disposed in the housing bore between an open position and a closed position. When the contacts are in their open position, the second electrical contact is spaced apart from the first electrical contact and when the contacts are in their closed position, the second electrical contact is in electrical contact with the first electrical contact. The switch includes features to enhance safety and operation by reducing the possibility of arcing or flashover before and during the switching operation and to provide of visual indication of the state of the switch.
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“Oil and Vacuum-Break Switches” Cooper Power Systems, Electrical Apparatus 260-20, Feb. 2002.
Bindics Charles
Reed Anthony
Siebens Larry
Stepniak Frank
Freidhofer Michael A
Hoffman & Baron LLP
Thomas & Betts International Inc.
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