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. 24, 2006
Filed:
Nov. 19, 2002
Hideaki Yoshimatsu, Hyogo, JP;
Hideaki Yoshimatsu, Hyogo, JP;
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Abstract
A device, mounted on a hydraulic excavator, for allowing each of first and second electric motors (), () to generate power by using electric power supplied from a power supply having a predetermined capacity, and actuating a boom cylinder (), an arm cylinder (), etc. using the generated power. Electric motor controllers (), (), respectively control power that is generated by the electric motors (), () so that, in machine-operation, powers generated by the electric motors (), () may be equal to or less than predetermined rated outputs, and the total amount of powers generated simultaneously by the electric motors (), () correspond to the maximum capacity of the power supply.