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:
Dec. 02, 2025
Filed:
May. 02, 2023
Applicant:
Ckd Corporation, Komaki, JP;
Inventors:
Assignee:
CKD CORPORATION, Komaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 7/17 (2006.01); F16K 7/16 (2006.01); F16K 31/122 (2006.01); B23K 26/21 (2014.01); B29C 48/255 (2019.01); F16K 41/12 (2006.01);
U.S. Cl.
CPC ...
F16K 7/17 (2013.01); F16K 7/16 (2013.01); F16K 31/1221 (2013.01); B23K 26/21 (2015.10); B29C 48/255 (2019.02); F16K 41/12 (2013.01);
Abstract
A fluid control valve includes a diaphragm assembly including a shaft member joined to an end of a drive shaft on the side near an annular valve seat, a membrane member made of Perfluoro alkoxy Alkane and located in surface contact with the end face of the shaft member on the opposite side to the end joined to the drive shaft, and a weld part formed by laser welding at the interface between the shaft member and the membrane member to join the shaft member and the membrane member. The shaft member is made of fluorine resin with carbon-based additive dispersed.