Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With housing or support means
Patent
1994-06-10
1995-07-25
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With housing or support means
2003021, H01H 902
Patent
active
054366054
ABSTRACT:
A case for a circuit breaker provides a base and a cover, both having an inner surface ribbing system and an inner surface coring system. The ribbing systems form an inner cavity retaining a circuit breaker mechanism and an outer aperture area for receiving a handle for manual operation of the mechanism. The handle is supported in the arcuate areas of the coring systems near the aperture area. A barrier member is located adjacent to the arcuate area in the base, and a barrier member is located adjacent to the arcuate area in the cover. When the base and the cover are assembled the two barrier members are spaced away from the handle and overlap the handle in the arcuate areas to separate the outer aperture area containing the handle from the inner cavity containing the circuit breaker mechanism and still allow the handle to extend freely down into the inner cavity for its connection to and operation of the circuit breaker mechanism. The width or thickness of the barrier member in the base is about 0.125 inches and that in the cover is about 0.156 inches.
REFERENCES:
patent: 4077024 (1978-02-01), Lisnay
patent: 4843359 (1989-06-01), Morris et al.
patent: 4879535 (1989-11-01), Mori et al.
patent: 4933653 (1990-06-01), Mrenna et al.
patent: 5008645 (1991-04-01), Mrenna
patent: 5245302 (1993-09-01), Brune et al.
Donovan Lincoln
Eaton Corporation
Moran Martin J.
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