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:
Aug. 20, 2013
Filed:
Nov. 27, 2008
Thomas Faber, Woerth-Maximiliansau, DE;
Michael Bayer, Ludwigsburg, DE;
Sven Hartmann, Stuttgart, DE;
Dirk Buehler, Buehl, DE;
Thomas Faber, Woerth-Maximiliansau, DE;
Michael Bayer, Ludwigsburg, DE;
Sven Hartmann, Stuttgart, DE;
Dirk Buehler, Buehl, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electric drive machine having a stator and a rotor, the rotor carrying a rotor winding, in slots, which is able to be supplied with electric current by a power supply system made up of a commutator and sliding contacts, the sliding contacts pressing on the surface of the commutator having at least two pairs each made up of one positive sliding contact and one negative sliding contact, and in the case of at least one first pair of a positive sliding contact and a negative sliding contact, the positive sliding contact and the negative sliding contact being opposed at an angle γ, which deviates from 180°.