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. 04, 2000
Filed:
Apr. 18, 1997
Kazuya Abe, Chiba, JP;
Seiji Sasaki, Shizuoka, JP;
Hajime Yamashita, Shizuoka-ken, JP;
Hisao Ikawa, Osaka, JP;
Yukio Kanagawa, Osaka, JP;
Kawaso Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An external conductive protection tube has in a front half wall thereof a front opening formed therein with a front open area large enough to leave molten metal running in due course to inflow therethrough inside the protection tube and advance as it moves, substantially passing by a dipped length of a solid electrolyte tube installed in the protection tube, spreading between the tubes, and in a rear half wall thereof a rear opening formed therein with a rear open area large enough to leave the inflowing molten metal advancing as it moves to pass therethrough, flowing outside the protection tube.