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:
May. 05, 2026
Filed:
May. 24, 2022
Fujikin Incorporated, Osaka, JP;
Keisuke Ishibashi, Osaka, JP;
Akihiro Harada, Osaka, JP;
Tadayuki Yakushijin, Osaka, JP;
Yusei Horikawa, Osaka, JP;
Souta Hachiman, Osaka, JP;
Toshiyuki Inada, Osaka, JP;
Ryo Sugimura, Osaka, JP;
Fujikin Incorporated, Osaka, JP;
Abstract
The invention provides a valve capable of suppressing unintended valve opening/closing by providing a play state during a manual operation and also enabling smooth transition from the play state to a rotation state. In the valve, a tip of another end portion of the stem and the engagement hole of an operation handle form a corresponding circumferential surface and a planar section continuous to the circumferential surface. Either one of the tip of the other end portion of the stem and the planar section of the engagement hole of the operation handle is formed to have two flat surfaces defining a predetermined angle, and thereby generates predetermined play when the operation handle is rotated in one direction after being rotated in another direction.