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:
Apr. 13, 2010
Filed:
Apr. 06, 2006
Michael Schmohl, Ammerbuch, DE;
Norbert Falter, Nuertingen, DE;
Dietrich Holzwarth, Aichwald, DE;
Metabowerke GmbH, Nuertingen, DE;
Abstract
A rotor () for a forced-air-cooled electric motor, in particular a universal motor, especially for use with electrical power tools, has a laminated armature () incorporating longitudinal slots () and with wire windings of a coil () protruding from the longitudinal slots () on the front face where the windings form coil connecting heads (). Some or all of the longitudinal slots () in the laminated armature () contain a rod () aligned in the longitudinal direction and protruding axially from one or both front faces () of the laminated armature (), whereby the protruding rod ends thus surround the coil connecting heads () on the respective front face to protect the coil connecting heads from abrasive wear.