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. 14, 2012
Filed:
Apr. 08, 2008
Noriteru Maeda, Osaka, JP;
Hirofumi Mizukami, Fukui, JP;
Akihiko Yamazaki, Fukui, JP;
Seiji Kurozumi, Osaka, JP;
Yoshikazu Yamagata, Osaka, JP;
Noriteru Maeda, Osaka, JP;
Hirofumi Mizukami, Fukui, JP;
Akihiko Yamazaki, Fukui, JP;
Seiji Kurozumi, Osaka, JP;
Yoshikazu Yamagata, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The mold commutator of the present invention comprises a plurality of commutator segments made of copper or copper alloy and circumferentially arranged, a plurality of spark absorbing elements, disposed between adjacent commutator segments, with paired parallel surfaces respectively having electrodes thereon, and a resin mold portion which integrates these portions into one piece. The spark absorbing element is electrically connected to the commutator segment via the electrode, and spark voltage generated at the commutator segment is absorbed by current flowing between the electrodes.