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. 11, 2023
Filed:
Jul. 26, 2022
Applicant:
Kitz Corporation, Chiba, JP;
Inventor:
Takeshi Gomi, Nagano, JP;
Assignee:
KITZ CORPORATION, Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/226 (2006.01); F16K 25/00 (2006.01); F16K 1/22 (2006.01);
U.S. Cl.
CPC ...
F16K 1/2261 (2013.01); F16K 1/222 (2013.01); F16K 25/00 (2013.01);
Abstract
A centric butterfly valve () in which top and bottom boss surfaces () are formed to be spherical, an outer peripheral end of the blade portion of the valve disk () is formed to be an M-shaped section part () with round-shaped apex parts () and a round-shaped valley part () smoothly linked, and the centric butterfly valve has a valve disk () having an extended part () obtained by successively and slightly extending the spherical surface of each of the top and bottom boss surfaces () to a blade portion () side.