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:
Jun. 07, 2005
Filed:
Feb. 27, 2003
Michael Habele, Waldenbuch, DE;
Michael Habele, Waldenbuch, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The commutator has a cylindrical collector (), disposed on a motor armature shaft, and electrical-contact means (), which during one rotation of the collector () touch at least two each of a plurality of commutator laminations () that are present on the collector () and thereby establish an electrical connection between the applicable commutator laminations and external current connections (). The electrical-contact means becomes especially low-wearing because the electrical-contact means comprise at least two electrically conductive cylinders () disposed in line with one another in the axial direction of the collector (), the longitudinal axes () are parallel to the longitudinal axis () of the collector (); and that the at least two cylinders () are placed relative to the collector () in such a manner and have a diameter such that the collector (), in its rotation, rolls over the inside faces () or the outside faces of the at least two cylinders (), and in the process each of the cylinders () is touched always by only one lamination () of the collector ().