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:
Nov. 03, 2026
Filed:
May. 16, 2023
Komatsu Ltd., Tokyo, JP;
Yuichi Hishinuma, Tokyo, JP;
Yuusuke Miyamoto, Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
A hydraulic valve apparatus interposed between a hydraulic device and a hydraulic pump and controls supply of oil from the hydraulic pump to the hydraulic device by operating a spool provided in a valve body, in which the valve body includes two pump oil passages connected to separate hydraulic pumps via pump ports, and a plurality of linear motion spools separately provided corresponding to a plurality of linear motion hydraulic devices, the two pump oil passages are provided in the valve body to be arranged side by side along a same direction, the plurality of linear motion spools are connected to a portion located on one side of the pump port in the pump oil passages, and the two pump oil passages are connected to each other via a merging-separating oil passage including a merging-separating switching valve at an end portion located on one side of the pump port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile