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:
Nov. 22, 2016
Filed:
Jul. 17, 2012
Chun Kit Cheung, Hong Kong, CN;
Duncan Yiu Lung Wong, Hong Kong, CN;
James Ching Sik Lau, Hong Kong, CN;
Wilfried Gorlt, Filderstadt, DE;
Chun Kit Cheung, Hong Kong, CN;
Duncan Yiu Lung Wong, Hong Kong, CN;
James Ching Sik Lau, Hong Kong, CN;
Wilfried Gorlt, Filderstadt, DE;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
A commutator includes a first body and a second body which are separately made of electrically insulating material, a plurality of commutator segments fixed on an outer surface of the first body and a plurality of commutator terminals. The first body is a hollow cylinder with two opposite ends. Each terminal has a contact area for contacting a corresponding one of the commutator segments. The second body has a base and a ring wall extending from the base, and one end of the first body is received in a space defined by the base and the ring wall, with the contact area of each terminal being in tight contact with the corresponding commutator segment at the inner side of the ring wall.