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. 25, 2026
Filed:
Mar. 27, 2023
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A closed-circuit pipe group () that constitutes a closed circuit system (to) is distributed through upper positions of a closed-circuit hydraulic pump () and an open-circuit hydraulic pump () along an upper surface plate () of a housing (). Further, an open-circuit pipe group () that constitutes an open circuit system (to) is distributed through lower positions of the closed-circuit hydraulic pump () and the open-circuit hydraulic pump () along a revolving frame (). Therefore, a working space for performing operational work can be formed between the closed-circuit pipe group () and the open-circuit pipe group ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile