High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Vacuum
Reexamination Certificate
2008-07-29
2011-11-01
Luebke, Renee S (Department: 2833)
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Vacuum
C218S139000, C218S140000
Reexamination Certificate
active
08049129
ABSTRACT:
A housing for a vacuum interrupter module that resists fracture when fasteners received therethrough are tightened, comprises an elongated hollow body from which a mounting flange extends from at least one end. Extending between the mounting flange and the body and/or coextensive with the mounting flange is a curved transition that maintains at least one curved recess, which partially surrounds corresponding mounting bores that are configured to receive suitable fasteners to mount the housing. Once mounted, the curved transition prevents stress forces imparted by the fasteners from deflecting the mounting flange, thereby inhibiting the formation of fractures therein.
REFERENCES:
patent: 4704508 (1987-11-01), Heyde
patent: 6172317 (2001-01-01), Wristen
Meadows James G.
Wristen Cecil C.
Fishman Marina
Luebke Renee S
Renner Kenner Greive Bobak Taylor & Weber
Vacuum Electric Switch Co.
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