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. 05, 2016
Filed:
Feb. 12, 2014
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Seiichiro Kataza, Tokyo, JP;
Tomoyuki Hirose, Tokyo, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
Damage of a lining-member is prevented through mitigation of stress concentration due to difference in thermal expansion. A lining-structure of a lining-member is provided on a base material of an insertion tube for adding a chemical to a reaction vessel for leaching under high temperature and high pressure. The base material has tube and flange sections. The lining-member is provided on the base material and formed of different material from the base material, and has a tube-lining section provided on the tube and flange lining sections provided on the flange-section. A chamfer-section is formed on the flange-section. The tube-lining section is protruded to the same height as a flat surface of the flange lining section. The flange lining-section has a curved surface-section protruded toward the base material side on the chamfer-section and is welded to a protruding-section of the tube-lining section that protrudes from a slant surface of the chamfer-section.