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. 08, 2005
Filed:
May. 18, 2001
Hikosaburo Hiraki, Oyama, JP;
Koichiro Itow, Tokyo, JP;
Hiroaki Inoueo, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A hybrid machine with a hydraulic drive device having hydraulic actuators allowed to operate against and by external loads is provided. To this end, the hybrid machine comprises hydraulic cylinders (), first hydraulic pumps (P) connected, with closed circuits, to head side pressure receiving chambers (S) and bottom side pressure receiving chambers (L) of the hydraulic cylinders (), and second hydraulic pumps (P) connected, with open circuits, to the bottom side pressure receiving chambers (L) and an external oil chamber (), wherein the first and second hydraulic pumps (P, P) are connected to electric motors (M) so as to be driven.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile