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:
Feb. 11, 2025
Filed:
May. 24, 2021
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Jinbiao Zhao, Nanjing, CN;
Hongwei Wang, Nanjing, CN;
Assignee:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27B 17/08 (2006.01); B25F 5/00 (2006.01); B27B 17/02 (2006.01); H02P 3/22 (2006.01); H02P 6/24 (2006.01);
U.S. Cl.
CPC ...
B27B 17/083 (2013.01); B25F 5/00 (2013.01); B27B 17/02 (2013.01); H02P 3/22 (2013.01); H02P 6/24 (2013.01);
Abstract
Disclosed is a chain saw and a power tool, including a working part, a body, a brushless motor, a power supply device, a drive circuit, a controller, and a motion detection device. The motion detection device is coupled to the body or the working part for detecting a motion of the body or the working part in at least one direction. The controller is configured to control the drive circuit to make the brushless motor enter a braking mode when the amount of the motion of the body or the working part in at least one direction exceeds a predetermined threshold.