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:
Nov. 11, 2003
Filed:
Jun. 25, 2001
Applicant:
Inventors:
Friedrich Behrens, Diekholzen, DE;
Hans Deierling, Hildesheim, DE;
Stefan Ossenkopp, Hildesheim, DE;
Martin Schwerdtle, Schwieberdingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01R 4/306 ; H02K 1/500 ;
U.S. Cl.
CPC ...
H01R 4/306 ; H02K 1/500 ;
Abstract
The invention relates to a method for producing a commutator ring ( ) for a commutator of an electrical machine, in which the laminas ( ) of the commutator ring and fastening means ( ) are formed out of a band material ( ), and a selectable number of laminas ( ) are then closed to form the commutator ring. The fastening means are produced with a special tool ( ) in the form of dovetail grooves ( ) by means of a so-called furrowing operation, which is done simultaneously from both face ends of the laminas ( ).