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:
Jul. 16, 2013
Filed:
Jun. 14, 2010
Kouetsu Takaya, Kounosu, JP;
Koji Okubo, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Kenji Suzuki, Kounosu, JP;
Kouetsu Takaya, Kounosu, JP;
Koji Okubo, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Kenji Suzuki, Kounosu, JP;
Fuji Electric Fa Components & Systems Co., Ltd., Tokyo, JP;
Abstract
An extinction cover () is mounted on a case () thereby sealing an extinction chamber (S). This extinction cover has an engaging-force-increased portion () which strengthens the force of engagement with the case, and an engaging-force-decreased portion () which weakens the force of engagement with the case. In response to an increase in internal pressure in the extinction chamber due to arc gas generation, the engaging-force-decreased portion establishes disengagement of the case and provides a gap () with the case, for linking the extinction chamber to external air, and the engaging-force-increased portion maintains engagement with the case.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile