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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.:

US 11199268 B1

PDFFull Text
Date of Patent:
Dec. 14, 2021

Filed:

Nov. 16, 2020

Fluid control valve

Applicant:

Ckd Corporation, Komaki, JP;

Inventors:

Kyomi Yamada, Komaki, JP;

Tatsushi Nabei, Komaki, JP;

Assignee:

CKD CORPORATION, Komaki, JP;

Attorney:

Oliff PLC

Primary Examiner:

Jessica Cahill

Assistant Examiner:

Patrick C Williams

Int. Cl.
CPC ...
F16K 1/42 (2006.01); F16K 7/16 (2006.01); F16K 31/06 (2006.01); F16K 1/36 (2006.01); F16K 1/54 (2006.01); G05D 7/06 (2006.01); F16K 31/126 (2006.01); F16K 31/12 (2006.01); F16K 41/10 (2006.01); F16K 17/30 (2006.01); F16K 27/02 (2006.01); F16K 17/02 (2006.01); F16K 1/46 (2006.01); F16K 25/02 (2006.01);
U.S. Cl.
CPC ...
F16K 1/42 (2013.01); F16K 1/36 (2013.01); F16K 1/46 (2013.01); F16K 1/54 (2013.01); F16K 7/16 (2013.01); F16K 17/02 (2013.01); F16K 25/02 (2013.01); F16K 27/02 (2013.01); F16K 31/1266 (2013.01); G05D 7/0635 (2013.01); F16K 17/30 (2013.01); F16K 31/0655 (2013.01); F16K 31/12 (2013.01); F16K 41/103 (2013.01);
Abstract

A regulator performing fluid control includes an annular protruding portion having a valve seat on its leading end and an annular diameter-decreasing surface formed by decreasing an inner diameter of the annular protruding portion toward a valve hole. The regulator includes a valve element provided with a contact surface to be in contact with the valve seat and a columnar step portion provided on an inner peripheral side of the valve seat protruding from the contact surface toward the valve hole, the step portion having a diameter larger than an inner diameter of the valve hole and being coaxially formed with the valve hole. An annular ridge is formed by an outer peripheral surface of the step portion intersecting an end face of the step portion on the valve-hole side with the annular diameter-decreasing surface to constitute a passage narrowing portion.

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