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:
Dec. 26, 2017
Filed:
Jun. 26, 2012
Josef Effler, Steinenbronn, DE;
Christoph Wagner, Remseck-Pattonville, DE;
Joachim Schadow, Stuttgart, DE;
Juergen Hein, Kornwestheim, DE;
Joerg Goehner, Boeblingen-Dagersheim, DE;
Josef Effler, Steinenbronn, DE;
Christoph Wagner, Remseck-Pattonville, DE;
Joachim Schadow, Stuttgart, DE;
Juergen Hein, Kornwestheim, DE;
Joerg Goehner, Boeblingen-Dagersheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A ring element includes a convex, in particular rounded, surface element for arrangement on at least one axial end region of a winding section of an electric motor rotor. The surface element provides a minimum radius curvature for supporting an inner layer of a rotor winding on the winding head. An insulating lamination element for an electric motor rotor onto which a rotor winding is intended to be wound includes the ring element. An electric motor, in particular a universal motor, includes a rotor with a rotor winding having the ring element. An electric machine tool, in particular a handheld electric machine tool such as an angle grinder, a drill, a saw or the like, includes the electric motor.