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:
Jan. 22, 2013
Filed:
Mar. 24, 2009
Applicants:
Masahiro Matsuo, Akashi, JP;
Makoto Ito, Kobe, JP;
Noboru Ito, Kobe, JP;
Inventors:
Assignee:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/044 (2006.01); F15B 13/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
A holding control valve of the present invention is configured such that: a spool is configured to perform strokes by a piston configured to operate by introduction of pilot pressure and have a larger diameter than the spool; the piston is divided into a pilot piston configured to receive the pilot pressure and a relief operation piston disposed adjacent to the spool to receive pressure of relief oil discharged when a relief valve operates; and the relief oil is introduced to between the pilot piston and the relief operation piston.