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. 04, 2026
Filed:
Dec. 21, 2022
Applicant:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Inventors:
Yuko Funakubo, Kobe, JP;
Hiroaki Fujiwara, Kobe, JP;
Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 17/06 (2006.01); F15B 13/02 (2006.01);
U.S. Cl.
CPC ...
F16K 17/06 (2013.01); F15B 13/024 (2013.01);
Abstract
A relief valve includes a piston including a first piston member to press an urging member using a pressure of pilot oil in a pilot chamber to change an amount of deflection of the urging member. The first piston member includes a first pressure receiving surface to receive a pressure in a first axial direction of an axial direction from hydraulic oil in a first oil chamber, and a second pressure receiving surface to receive a pressure in a second axial direction of the axial direction from the hydraulic oil in a second oil chamber.