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. 19, 2015
Filed:
Feb. 10, 2011
Applicants:
Haruhiko Kawasaki, Atsugi, JP;
Masahiro Egawa, Kawaguchi, JP;
Inventors:
Haruhiko Kawasaki, Atsugi, JP;
Masahiro Egawa, Kawaguchi, JP;
Assignee:
KAYABA INDUSTRY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 21/14 (2006.01); E02F 9/20 (2006.01); F15B 21/04 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2217 (2013.01); E02F 9/2075 (2013.01); E02F 9/2282 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 21/042 (2013.01); F15B 21/14 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/88 (2013.01);
Abstract
A regeneration switching valve which communicates with a neutral flow path and a tank at a normal position and cuts off communication between the neutral flow path and the tank to cause the neutral flow path to communicate with a hydraulic motor for power generation at a switched position is provided in at least one of first and second circuit systems including a plurality of control valves.