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.

Date of Patent:
Oct. 07, 2025

Filed:

Jul. 24, 2024
Applicant:

Greenworks (Jiangsu) Co., Ltd, Jiangsu, CN;

Inventors:

Fei Huang, Jiangsu, CN;

Zhikun Wang, Jiangsu, CN;

Shangyu Xi, Jiangsu, CN;

Bingtan Chen, Jiangsu, CN;

Hexin Yang, Jiangsu, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 11/00 (2006.01); E21B 44/00 (2006.01); F16H 57/02 (2012.01); H02K 7/116 (2006.01); H02K 9/06 (2006.01);
U.S. Cl.
CPC ...
E21B 11/005 (2013.01); E21B 44/00 (2013.01); F16H 57/02 (2013.01); H02K 7/116 (2013.01); H02K 9/06 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02073 (2013.01);
Abstract

An earth auger includes a transmission assembly arranged on a connecting base, a motor assembly connected with the transmission assembly and driving the transmission assembly to rotate, a controller arranged at a first side of the transmission assembly and connected with the motor assembly, a control knob and a plurality of indicator lights arranged on a housing, and a gyroscope sensor. The controller controls a rotation of the motor assembly through an on-off of a circuit. Angular velocities and angular acceleration critical values of different gears are set through the control knob. The indicator lights are used to display a current gear, and the gyroscope sensor is arranged on a second side of the transmission assembly. The gyroscope sensor obtains angular velocity information and angular acceleration information, and feedbacks a monitored signal to the controller. When the monitored signal exceeds a preset critical value, the controller stops the motor.


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