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:
Feb. 19, 1985
Filed:
Mar. 25, 1983
Toshiaki Yoshizumi, Minoo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A disconnecting switch including a hollow cylindrical shield of an electrically conducting material including a circular opening, a spring loaded arcing contact member, a main stationary contact member disposed within the shield to be slightly spaced from the plane of the opening and surround the arcing contact member, and a toroidal electrode disposed in the opening and having a curved surface externally protruding beyond the plane of the opening. The arcing and main contact members are connected to the shield while the electrode is connected to the shield through a resistor. At the open position the arcing contact member slightly protrudes beyond the plane of the opening. At the closed position a movable contact member engages both the main contact member and the arcing contact member at its retroggessing position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile