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:
Aug. 29, 2006
Filed:
Jul. 10, 2003
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Joshua F. West, Towson, MD (US);
Michael R. Sell, Bel Air, MD (US);
Richard T. Walter, Baldwin, MD (US);
David J. Smith, Glen Burnie, MD (US);
Earl M. Ortt, Bel Air, MD (US);
John C. Stone, Dallastown, PA (US);
Howard T. White, Wittman, MD (US);
Hung T. Du, Reisterstown, MD (US);
Brandon L. Verbrugge, Towson, MD (US);
Joshua F. West, Towson, MD (US);
Michael R. Sell, Bel Air, MD (US);
Richard T. Walter, Baldwin, MD (US);
David J. Smith, Glen Burnie, MD (US);
Earl M. Ortt, Bel Air, MD (US);
John C. Stone, Dallastown, PA (US);
Howard T. White, Wittman, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with plastic. The plastic may be thermally conductive and have features molded therein that enhance heat transfer. The plastic may stiffen the armature and increase its critical speed. Characteristics of the plastic, its geometry and its distribution may be varied to adjust spinning inertia and resonant frequency of the armature. The magnet wires may be compressed into the slots, by application of iso-static pressure or by the pressure of the plastic being molded around them. Larger magnet wire can then be used which increases the power of the electric motor using the armature having the larger magnet wire. A two or three plate mold may be used to mold the plastic around the armature. Balancing features can be molded in place. The plastic can have a base polymer that is a blend of two or more polymers and various thermally conductive fillings.