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. 22, 2008
Filed:
Mar. 15, 2004
Applicants:
Michael Baempfer, Rotenburg, DE;
Wolfgang Warnke, Herleshausen, DE;
Inventors:
Michael Baempfer, Rotenburg, DE;
Wolfgang Warnke, Herleshausen, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R 39/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a fuel pump which comprises an electric motor. Said electric motor is provided with carbon brushes () that cover a plurality of lamellae () of a collector (). Grooves () in an armature () include sections of a plurality of coils (), thereby particularly reducing erosion of the carbon brushes ().