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Field assemblies having pole pieces with ends that decrease in width, and methods of making same
 
   
Document Number
US Patent 7205696
Issued Date
April 17, 2007
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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 axially opposed ends that gradually decrease in width. The pole portions may also have dovetail features that are received in corresponding recesses of the back iron portion.
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Number of Claims:
18
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Owner
Black & Decker Inc. (Newfrey, DE)
Published
April 17, 2007
Application Number
11/062,343
Filed
February 18, 2005
US Classification
310/218  
Int'l Classification
H02K   1/18   (20060101)   H02K   1/28   (20060101)  
Examiner
Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation-in-part of application Ser. No. 10/934,334, titled, Field Assemblies and Methods of Making Same, filed, Sep. 3, 2004 now U.S. Pat. No. 7,078,843, which claims the benefit of U.S. Provisional Application Nos. 60/500384, filed on Sep. 5, 2003, and 60/546243 filed on Feb. 20, 2004. The disclosures of the above applications are incorporated herein by reference.
USPTO Field of Search
310/216   310/217   310/218   310/254  
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