Electricity: circuit makers and breakers – Electric switch details – Contact
Reexamination Certificate
2006-10-13
2009-08-04
Enad, Elvin G (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Contact
C335S016000, C218S022000
Reexamination Certificate
active
07569784
ABSTRACT:
A bearing assembly is provided for an electrical switching apparatus including a housing having at least one parting line and an exterior side, a stationary contact assembly disposed on one side of the parting line, a movable contact assembly, and an operating mechanism with a pole shaft for moving the movable contact assembly into and out of electrical contact with the stationary contact assembly. The bearing assembly includes a number of primary bearings pivotably supporting the pole shaft on the same side of the parting line as the stationary contact assembly. An integral bearing section including secondary bearings pivotably couples the pole shaft to the housing at least one bearing cover member having a fastening portion. The pole shaft is pivotably disposed at or about the integral bearing section on the exterior side of the housing. A housing and an electrical switching apparatus are also disclosed.
REFERENCES:
patent: 5057806 (1991-10-01), McKee et al.
patent: 5200724 (1993-04-01), Gula et al.
patent: 6317019 (2001-11-01), Herpin et al.
patent: 6640363 (2003-11-01), Pattee et al.
patent: 6777636 (2004-08-01), Ahlert et al.
Olszewski David M.
Rakus Paul R.
Weister Nathan J.
Eaton Corporation
Enad Elvin G
Fishman Marina
Moran Martin J.
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