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:
Mar. 21, 2017
Filed:
Jun. 08, 2010
Atsushi Sugiura, Tokyo, JP;
Takumi Hori, Tokyo, JP;
Kenji Nishikawa, Tokyo, JP;
Ken Onishi, Tokyo, JP;
Noriaki Shimonabe, Tokyo, JP;
Satoshi Tsuzuki, Hiroshima, JP;
Ikuo Wakamoto, Hiroshima, JP;
Atsushi Sugiura, Tokyo, JP;
Takumi Hori, Tokyo, JP;
Kenji Nishikawa, Tokyo, JP;
Ken Onishi, Tokyo, JP;
Noriaki Shimonabe, Tokyo, JP;
Satoshi Tsuzuki, Hiroshima, JP;
Ikuo Wakamoto, Hiroshima, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An opening and closing device that opens and closes an access port opened from a substantially cylindrical working platform disposed inside a reactor vessel and used to access a nozzle stub of the reactor vessel from the inside of the working platform, the opening and closing device includes: a cover that is slidable along an outer peripheral surface or an inner peripheral surface of the working platform from a closing position where the access port is closed to an opening position where the access port is opened; and moving device for sliding the cover.