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. 27, 2003
Filed:
Dec. 11, 2001
Michael Jeffrey Agnes, Bel Air, MD (US);
Garrett Patrick McCormick, Baltimore, MD (US);
Richard Thomas Walter, Baldwin, MD (US);
Christopher Ryan Yahnker, Eldersburg, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A double insulated electronically commutated brushless motor for coupling to a gearbox of a motor driven product. The motor includes a first layer of electrical insulation that includes a plurality of insulating strips formed in the shape of stator slots and inserted into the stator slots before windings are wound in the stator slots. Additionally, the first layer of electrical insulation includes a plurality of insulating strips wedged between the winding and a mouth of the winding slots after the windings are inserted. The motor further includes a second layer of electrical insulation made up of an insulating tube pressed onto a shaft between the shaft and a rotor stack.