Black Decker Inc.

James C Benton

Earl M Ortt

Brandon L Verbrugge

Hung T Du

Ren H Wang

Frank A Mannarino

Garrett Patrick McCormick

Spencer G Maid

Michael A Zemlock

Jiaqi Zhang

Kevin M Hogan

Shane Ashley Moll

Eric J Samuelsen

Allison A Smith

Therese M Rakosky

Kyle J Wheaton

Antonios M Nicolaidis

Ren Hong Wang

A power tool has a motor having a stator made by separately forming pole pieces and field coils. The field coils are placed over necks of the pole path pieces. An armature has an outside diameter of at least 0.625 the outside diameter of the stator is placed in the stator. The housing has a girth of 200 mm or less with the motor wound to provide a maximum watts out to housing girth ratio of at least 5 maximum watts outs to 1 mm of housing girth. The field coils may be formed so that they extend beyond pole tips of the pole pieces.

Power tool with motor having a multi-piece stator

A power tool has a motor having a stator made by separately forming pole pieces, return path pieces and field coils. The field coils are placed over necks of the pole path pieces and the return path pieces are affixed to the pole pieces. An armature having an outside diameter of at least 0.625 the outside diameter of the stator is placed in the stator. The field coils may be formed so that they extend beyond pole tips of the pole pieces.

Power tools with motor having a multi-piece stator

Growing community of inventors

Bel Air, MD, United States of America

James C Benton