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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.:

US 12774584 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

May. 10, 2021

Electric construction machine

Applicant:

Yanmar Holdings Co., Ltd., Osaka, JP;

Inventors:

Shu Nishikori, Osaka, JP;

Kensuke Kaneda, Chikugo, JP;

Assignee:

YANMAR HOLDINGS CO., LTD., Osaka, JP;

Attorney:

NORTON ROSE FULBRIGHT US LLP

Primary Examiner:

Navid Z Mehdizadeh

Assistant Examiner:

Caitlin R Mccleary

Int. Cl.
CPC ...
E02F 9/20 (2006.01); B60K 11/04 (2006.01); E02F 9/08 (2006.01); E02F 9/22 (2006.01); F15B 13/04 (2006.01); F15B 15/18 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2095 (2013.01); B60K 11/04 (2013.01); E02F 9/0866 (2013.01); E02F 9/226 (2013.01); F15B 13/04 (2013.01); F15B 15/18 (2013.01); B60L 2200/40 (2013.01); B60L 2260/40 (2013.01); F15B 2211/62 (2013.01);
Abstract

An electric construction machine includes a driving system configured to drive a machine body under electric power, a heat exchange device configured to exchange heat of a cooling medium for cooling the driving system, a cooling fan configured to send air for cooling the heat exchange device, and a cooling fan control unit configured to control the rotation of the cooling fan according to a set operating mode. The operating mode includes a driving mode in which the driving system is driven and a charging mode in which the driving of the driving system is stopped to charge a battery configured to store electric power. The cooling fan control unit is configured to set the rotation rate of the cooling fan in the charging mode to a charging mode rotation rate that corresponds to the driving state of the driving system.

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Nishikori, Shu. (2026). Electric construction machine (U.S. Patent No. 12774584). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774584

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