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:
Sep. 17, 2024
Filed:
Dec. 28, 2020
Kitz Corporation, Chiba, JP;
Takanori Muneyoshi, Chino, JP;
KITZ CORPORATION, Tokyo, JP;
Abstract
A lined butterfly valve and manufacturing method, the lined butterfly valve including a valve disk () with a core metal () covered with a lining layer () provided rotatably inside a body () by a stem (). The lining layer includes a front/back-side lining part () provided on each of front and back sides of the core metal and an outer circumferential lining part () provided on an outer circumferential side of the core metal. The front/back-side lining part is provided on each of the front and back sides of the core metal in which no occurrence of warpage is assumed so as to have a thickness T, and the outer circumferential lining part has a thickness Tfrom an outer circumferential end of the core metal to a tip seal surface of an outer circumferential end of the valve disk.