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:
Apr. 28, 2026
Filed:
Oct. 27, 2022
Hitachi Construction Machinery Tierra Co., Ltd., Koka, JP;
Toshiya Otsuru, Koka, JP;
Seiichi Kihara, Koka, JP;
Shogo Kimura, Ritto, JP;
Takuma Kuwahara, Higashiomi, JP;
Abstract
A power feeding connector () to which a power feeding cable () for supplying electric power to an electric motor or a battery () is connected and an indicator lamp () that lights up when a lower traveling structure (), an upper revolving structure () or a working mechanism () is in the middle of operating are arranged in back of an operator's seat (). An insert port (A) of the power feeding connector () which the power feeding cable () is connected or disconnected is located to be oriented to the indicator lamp ()-side in the left-right direction. Because of this arrangement, the insert port (A) can be illuminated by light emitted from the indicator lamp (), allowing an operator of an electric hydraulic excavator () and workers around it to recognize that the electric power fed from an external power source () is being supplied to the electric hydraulic excavator () via the power feeding cable () connected to the power feeding connector () and that the electric hydraulic excavator () is in the middle of operating with this electric power.