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:
Sep. 23, 2003
Filed:
May. 10, 2001
Applicant:
Inventors:
Kenichi Koyama, Tokyo, JP;
Toyomi Ooshige, Tokyo, JP;
Hiroyuki Sasao, Tokyo, JP;
Hiroyuki Akita, Tokyo, JP;
Yukimori Kishida, Tokyo, JP;
Mitsuru Tsukima, Tokyo, JP;
Toshie Takeuchi, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 3/00 ;
U.S. Cl.
CPC ...
H01H 3/00 ;
Abstract
A switching apparatus for multiphase electric power includes switching units corresponding to different phases. Each switching unit includes an operating mechanism having a movable coil disposed between two fixed coils, and a switch portion having a movable contact operatively connected to the movable coil. A separate power supply may be provided for each switching unit to permit individual control of the different phases.