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. 04, 2021
Filed:
Dec. 19, 2018
Applicant:
Nabtesco Corporation, Tokyo, JP;
Inventor:
Koji Ito, Gifu-ken, JP;
Assignee:
NABTESCO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/122 (2006.01); F16K 3/26 (2006.01); F16K 3/24 (2006.01); F16K 1/42 (2006.01); F16K 1/36 (2006.01); F15B 1/00 (2006.01); F15B 13/02 (2006.01); F16K 31/04 (2006.01); F16K 47/04 (2006.01);
U.S. Cl.
CPC ...
F16K 31/1221 (2013.01); F15B 1/00 (2013.01); F15B 13/02 (2013.01); F16K 1/36 (2013.01); F16K 1/42 (2013.01); F16K 3/243 (2013.01); F16K 3/26 (2013.01); F16K 31/041 (2013.01); F16K 47/045 (2013.01);
Abstract
A fluid valve has a valve plug configured as follows. In order to control a flow rate of a fluid between a first pressure chamber and a second pressure chamber, the valve plug is provided so as to be openable and closable in accordance with a difference between forces generated by pressures in the pressure chambers and resilience of an elastic member. The fluid valve includes an opening motion promoting portion. The opening motion promoting portion promotes an increase in degree of opening of the valve plug after the valve plug has been opened.