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. 27, 2002
Filed:
Nov. 24, 2000
Reimar Grosskopf, Kriens, CH;
Frank Neumann, Emmenbruecke, CH;
Interelectric AG, Sachseln, CH;
Abstract
An electric motor comprising a commutator and lever brushes which resiliently press thereagainst and are pivotable about a pivot axis, a connection line which extends in a direction perpendicular to the pivot axis between the center point of a brush contacting surface and the pivot axis being tangential to the outer surface of the commutator. Such a brush assembly is to be made smaller in size. Each lever brush comprises a bearing bush rotatably arranged to be coaxial to the pivot axis, as well as a shaped body which is made from a conductive material and is firmly connected to the bearing bush. The shaped body forms the brush contacting surface and has a connection point which is in direct electrical contact with the brush contacting surface for electrically connecting the lever brush. The bearing bush is made from a material which is more stable than the shaped body.