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:
Mar. 17, 2026
Filed:
Jul. 09, 2024
Applicant:
Ckd Corporation, Komaki, JP;
Inventors:
Tatsuhito Aoyama, Komaki, JP;
Shinya Takahashi, Komaki, JP;
Assignee:
CKD CORPORATION, Komaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 25/00 (2006.01); F16K 1/42 (2006.01); F16K 7/17 (2006.01); F16K 1/46 (2006.01); F16K 31/122 (2006.01);
U.S. Cl.
CPC ...
F16K 7/17 (2013.01); F16K 25/005 (2013.01); F16K 1/425 (2013.01); F16K 1/465 (2013.01); F16K 31/1221 (2013.01);
Abstract
A fluid control valve includes a pressing member, a diaphragm member, and a valve seat. The pressing member presses and deforms the diaphragm member into contact with the valve seat. The valve seat includes a first annular valve seat made of fluorine resin and a second annular valve seat made of heat-resistant resin, which are arranged concentrically adjacent to each other. The heat-resistant resin has a higher deflection temperature under load at 1.82 MPa than the fluorine resin, measured according to ASTM D-648.