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. 10, 2014
Filed:
May. 09, 2012
Osamu Kashimura, Hino, JP;
Masaru Isozaki, Ichihara, JP;
Hiroyuki Tachikawa, Yokohama, JP;
Kouetsu Takaya, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Yuji Shiba, Kounosu, JP;
Osamu Kashimura, Hino, JP;
Masaru Isozaki, Ichihara, JP;
Hiroyuki Tachikawa, Yokohama, JP;
Kouetsu Takaya, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Yuji Shiba, Kounosu, JP;
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Fuji Electric FA Components & Systems Co., Ltd., Tokyo, JP;
Abstract
An electromagnetic contactor has a contact device having a contact housing case housing a pair of fixed contacts and a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts, and an insulating cylinder in a bottomed tubular shape disposed on an inner peripheral surface of the contact housing case to enclose the pair of fixed contacts and the movable contact. The insulating cylinder positions an arc extinguishing permanent magnet for extinguishing an arc generated between the pair of fixed contacts and the movable contact. A magnet housing portion to protect the arc extinguishing permanent magnet from the arc is formed on an inner peripheral surface of the insulating cylinder and faces a side surface of the movable contact. An arc extinguishing space is formed on an outer side of the magnet housing portion in an extending direction of the movable contact.