The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2007
Filed:
Feb. 18, 2005
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Earl M. Ortt, Bel Air, MD (US);
Garrett P. Mccormick, Manchester, MD (US);
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Earl M. Ortt, Bel Air, MD (US);
Garrett P. McCormick, Manchester, MD (US);
Black & Decker Inc., Newark, DE (US);
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.