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. 25, 2015
Filed:
May. 12, 2011
Wei Zhang, Hitachi, JP;
Masashi Kawamata, Hitachi, JP;
Hiroyuki Nakamichi, Hitachi, JP;
Tatsushi Yamaguchi, Saitama, JP;
Daigorou Shiozawa, Kitakatushika, JP;
Wei Zhang, Hitachi, JP;
Masashi Kawamata, Hitachi, JP;
Hiroyuki Nakamichi, Hitachi, JP;
Tatsushi Yamaguchi, Saitama, JP;
Daigorou Shiozawa, Kitakatushika, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
At least one conductor is disposed in sealed vessel, which is filled with insulating gas, an hand hole is provided to a part of sealed vessel and is closed by a sealed cover, and optical fibers are disposed that form a closed loop surrounding conductor in sealed vessel. Optical fibers are hermetically led out of sealed vessel from sealed cover and are provided with at least a light source unit and an optical signal processor unit at the lead-out end. An airtight hollow tube disposed looping around leaving a predefined distance of separation is provided to conductor in sealed vessel, the end of tube is hermetically connected to sealed cover by sealing/bonding means, and optical fibers can be inserted in sealing/bonding means.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile