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:
Nov. 28, 2023
Filed:
Jan. 31, 2020
Ishizaki Co., Ltd., Tokyo, JP;
Nobuyuki Ishizaki, Tokyo, JP;
Takeshi Ouchi, Tokyo, JP;
Kazuhiro Ota, Tokyo, JP;
Daisuke Kikuchi, Tokyo, JP;
Kazuhiko Kojima, Tokyo, JP;
Futoshi Hasegawa, Tokyo, JP;
Eiji Hara, Tokyo, JP;
Yusuke Yoshida, Tokyo, JP;
ISHIZAKI CO., LTD., Tokyo, JP;
Abstract
The check valve () is of straight pipe joint type and oblique lift type. It includes: a valve seat (); a moving body () capable of linearly reciprocating between a closed state where it is in close contact with the valve seat and an open state where it is separated from the valve seat; a primary flow path (inflow path ()) on an upstream side of the moving body; and a secondary flow path (outflow path ()) on a downstream side of the moving body. The moving body includes a valve body () and a valve shaft () extending from the valve body. The valve seat supporting the valve body is formed to straddle the center line (CL) of the connection flow path that linearly extends including the primary flow path (inflow path) and the secondary flow path (outflow path) in a cross section including the center line thereon.