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. 10, 2010
Filed:
Sep. 12, 2007
Yoshiaki Ohda, Kanagawa, JP;
Yoshikata Kobayashi, Kanagawa, JP;
Masaharu Shimizu, Kanagawa, JP;
Satoshi Marushima, Kanagawa, JP;
Yoshiaki Ohda, Kanagawa, JP;
Yoshikata Kobayashi, Kanagawa, JP;
Masaharu Shimizu, Kanagawa, JP;
Satoshi Marushima, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A switchgear operating mechanism for reciprocatively driving a movable contact of a switchgear so as to shift the switchgear between an open state and a closed state. In the closed state, a roller pushes a leading end of a latch in the direction substantially toward the rotation center of the latch. In a state where the switchgear operating state is shifted from the closed state to the open state, a lock lever is pulled so as to allow the latch to be rotated in the opposite direction to the biasing direction of a latch return spring to release an engagement between the roller and the leading end of the latch, which causes the opening spring to discharge its energy to rotate the sub-shaft.