Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-01-02
2007-01-02
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S089000, C310S064000, C361S697000, C417S423800, C417S423140, C165S121000, C165S080300
Reexamination Certificate
active
11281460
ABSTRACT:
Disclosed is an axial fan motor for air-cooling a heat sink of a heating element and thermally connected to the heat sink. The casing of the axial fan motor is formed of a plurality of laminated metal plates. The plurality of metal plates include a single first metal plate and a plurality of second metal plates. The single first metal plate, which is an outermost layer located at the air exhaust side of the fan, has a peripheral portion, a central portion, and a plurality of arm portions for connecting the peripheral portion and the central portion. A bearing holder for supporting a rotary shaft of the fan is attached to the central portion. Each of the plurality of second metal plates is selected from a first-type second metal plate having a peripheral portion only, a second-type second metal plate having a peripheral portion only and assuming an outline of greater size than the outline of the first-type second metal plate, and a third-type second metal plate having a peripheral portion only, having a single cutout portion formed in the peripheral portion, and assuming an outline substantially equal in size to that of the first-type second metal plate.
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Bacon & Thomas PLLC
Minebea Co. Ltd.
Tamai Karl
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