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:
Oct. 27, 2015
Filed:
Oct. 07, 2011
Yoshiyuki Nakamura, Hiroshima, JP;
Hisaki Kato, Tokyo, JP;
Shinya Yoshimitsu, Hiroshima, JP;
Hiroharu Ido, Tokyo, JP;
Hiroshi Nomura, Tokyo, JP;
Yoshiyuki Nakamura, Hiroshima, JP;
Hisaki Kato, Tokyo, JP;
Shinya Yoshimitsu, Hiroshima, JP;
Hiroharu Ido, Tokyo, JP;
Hiroshi Nomura, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A bottom part refractory includes a center part refractory, an arrangement refractory which is arranged contiguously with the center part refractory, and a connection refractory which is arranged at a position where at least a portion of the connection refractory overlaps with a vertically downward projection view of a side wall refractory. The connection refractory which is contiguously arranged with the arrangement refractory is constituted of two or more force transmission refractories arranged in the direction toward the arrangement refractory from the side-wall refractory. Opposedly facing surfaces between the force transmission refractories at least at a position among the force transmission refractories are inclined such that upper portions of the opposedly facing surfaces are positioned on a more inner side of a bottom portion than lower portions of the opposedly facing surfaces are positioned.