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, 2016
Filed:
Sep. 12, 2013
Johnson Electrics S.a., Murten, CH;
James Ching Sik Lau, Hong Kong, CN;
Wilfried Gorlt, Filderstadt, DE;
JOHNSON ELECTRICS S.A., Murten, CH;
Abstract
A commutator () for a brush motor includes a cylindrical insulating base (), a plurality of segments () disposed on an outer surface () of the insulating base (), circumferentially spaced from each other, and defining a plurality slots () between adjacent segments (), and a plurality of insulating outgas elements () capable of releasing a gas having a lower conductivity than air and disposed on the outer surface () of the cylindrical insulating base (). Each outgas element () is located between a corresponding pair of the plurality of segments (), having a gas releasing surface () between the corresponding pair of segments () and lower than outer surfaces () of the corresponding pair of segments (). A method for making a commutator is also provided.