Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Plural magnets or flux sources
Reexamination Certificate
2007-04-09
2009-10-06
Enad, Elvin G (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Plural magnets or flux sources
C335S256000, C335S220000, C335S014000
Reexamination Certificate
active
07598830
ABSTRACT:
An electromagnetic coil apparatus includes a ferrous coil frame having a first end and a second end opposite the first end. A coil assembly includes a conduit, a number of coils within the ferrous coil frame and being disposed on the conduit, and a ferrous plunger movable in the conduit. A first ferrous heel member is disposed proximate the first end of the ferrous coil frame. A second ferrous top plate member has an opening and is disposed proximate the second end of the ferrous coil frame. A magnetic flux enhancer is external to the conduit and is at least partially external to the ferrous coil frame. The magnetic flux enhancer includes a ferrous conduit coupled to the second ferrous top plate member and cooperates with the opening thereof to form a passageway. A portion of the ferrous plunger of the coil assembly passes through the passageway.
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Bogdon Erik R.
Juds Mark A.
Whitaker Thomas A.
Eaton Corporation
Enad Elvin G
Moran Martin J.
Talpalatskiy Alexander
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