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:
Jun. 19, 2007
Filed:
Sep. 03, 2004
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Earl M. Ortt, Bel Air, MD (US);
Michael J. Agnes, Bel Air, MD (US);
Michael A. Zemlok, Towson, MD (US);
Robert G. Kusmierski, Felton, PA (US);
David J. Smith, Glen Burnie, MD (US);
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Earl M. Ortt, Bel Air, MD (US);
Michael J. Agnes, Bel Air, MD (US);
Michael A. Zemlok, Towson, MD (US);
Robert G. Kusmierski, Felton, PA (US);
David J. Smith, Glen Burnie, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
An electric motor has a field assembly, such as a stator, has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed. The pole pieces and return path pieces are formed with mating features that are mated to hold the pole pieces and return path pieces together.