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. 02, 2005
Filed:
Jul. 26, 2002
Kosuke Yamashita, Futtsu, JP;
Tomoaki Tanaka, Hikari, JP;
Masato Sugiura, Futtsu, JP;
Kiyomi Horikoshi, Hikari, JP;
Makoto Sumi, Kitakyushu, JP;
Kosuke Yamashita, Futtsu, JP;
Tomoaki Tanaka, Hikari, JP;
Masato Sugiura, Futtsu, JP;
Kiyomi Horikoshi, Hikari, JP;
Makoto Sumi, Kitakyushu, JP;
Nippon Steel Corporation, Tokyo, JP;
Nittetsu Plant Designing Corporation, Fukuoka, JP;
Abstract
The invention provides a cooling system for protecting an image fiber and an imaging device from thermal influences and a temperature measurement apparatus, for a molten metal, capable of being easily controlled and stably measuring the temperature. The temperature measurement apparatus for a molten metal comprises four connectable portions of a nozzle portion a purge/cooling gas introduction portion, an image fiber fitting portion with a window glass and an image fiber to a double pipe nozzle protection tube. A distance from a nozzle distal end as an introduction portion of thermal radiation light to a light reception portion at an image fiber distal end becomes short so that a greater amount of thermal radiation light can be received.