Field assemblies having pole pieces with axial lengths less...

Details Field assemblies having pole pieces with axial lengths less... Field assemblies having pole pieces with axial lengths less...

2007-05-01

2007-05-01

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216055

Reexamination Certificate

active

11062345

ABSTRACT:
An electric motor, power tool using the electric motor, and method of making the electric motor includes making a stator that includes pole portions that have axial lengths less than an axial length of a back iron portion. Alternatively, or in addition, the pole portions have axially opposed ends that decrease in width. Alternatively, or in addition, the pole portions have dovetail features that are received in corresponding recesses of the back iron portion.

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