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, 2019
Filed:
May. 22, 2017
Kubota Corporation, Osaka-shi, JP;
Haruka Kitahara, Sakai, JP;
Seimei Nishikawa, Sakai, JP;
Kubota Corporation, Osaka, JP;
Abstract
An inner oil passage () is formed inside a slidable spool (). The slidable spool () defines, in its circumferential face, a first opening (), a second opening () and a third opening (). The first opening (), the second opening () and the third opening () are communicated to the inner oil passage (). When the slidable spool () is switched to a floating position (F), the first the first opening () is aligned with a first port end portion (), the second opening () is aligned with a second port end portion (), and the third opening () is aligned with a fourth port end portion (), respectively, and a first cylinder port and a second cylinder port are communicated to a tank port () via the inner oil passage ().