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:
Aug. 02, 2022
Filed:
Mar. 20, 2019
Fujikin Incorporated, Osaka, JP;
Tatsuhiko Sato, Osaka, JP;
Tsutomu Shinohara, Osaka, JP;
Tomohiro Nakata, Osaka, JP;
Takeru Miura, Osaka, JP;
FUJIKIN INCORPORATED, Osaka, JP;
Abstract
A valve device includes: a valve body that forms a first flow path and a second flow path; an inner disc that includes an inner annular part disposed around an opening of the first flow path, an outer annular part disposed on an outer peripheral side of the inner annular part, and a connecting part that includes a plurality of openings that communicates with the second flow path and that connects the inner annular part and the outer annular part; a valve seat disposed on the inner annular part; and a diaphragm that, at a peripheral edge part of the diaphragm, comes into contact with the outer annular part and makes the first flow path and the second flow path continuous and discontinuous by moving between an open position of non-contact and a closed position of contact with the valve seat.