Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2008-04-29
2008-04-29
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S184000, C310S185000
Reexamination Certificate
active
07365472
ABSTRACT:
An electric generator10of the present invention comprises a permanent magnet14, a coil30, a yoke20, and attracted means19composed of a plurality of attracted pieces18which are arranged radially around the rotation axis12and are magnetized by the permanent magnet14. The permanent magnet14, the coil30, the yoke20, and the attracted means19are mounted on the rotation axis12and the attracted pieces18that constitute the attracted means19are each placed in positions that correspond to positions that bisect the spaces between the metal pieces that constitute the yoke20, so that the cogging torque exerted the rotation axis12is reduced.
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Milde & Hoffberg LLP
Nguyen Tran
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