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:
Dec. 13, 2005
Filed:
Sep. 14, 2004
Akifumi Sato, Saitama, JP;
Koji Asakawa, Saitama, JP;
Mitsuhiro Mitsushige, Saitama, JP;
Yasuhiro Takahashi, Saitama, JP;
Hideto Yamagata, Saitama, JP;
Akifumi Sato, Saitama, JP;
Koji Asakawa, Saitama, JP;
Mitsuhiro Mitsushige, Saitama, JP;
Yasuhiro Takahashi, Saitama, JP;
Hideto Yamagata, Saitama, JP;
Fuji Electric FA Components & Systems Co., Ltd., Tokyo, JP;
Abstract
A contactor device of a repulsion-type circuit breaker includes a first movable contactor with a first movable contact to be driven by an open-close mechanism; a fixed contactor; a second movable contactor having second and third movable contacts; a first contact spring for urging the first movable contactor toward the second movable contactor; and a second contact spring for urging the second movable contactor toward the first movable contactor and the fixed contactor. The first movable contactor, fixed contactor, and second movable contactor are arranged such that when an over-current flows, an electromagnetic repulsive force is generated so that the first and second movable contactors are rotated against the first and second contact springs to open between the first movable contact and the second movable contact and between the fixed contact and the third movable contact before the open-close mechanism opens the first movable contact.