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:
Aug. 11, 2020
Filed:
Nov. 12, 2018
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Assignee:
Nanjing Chevron Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); F04D 27/00 (2006.01); H02J 7/34 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0068 (2013.01); F04D 27/008 (2013.01); H02J 7/345 (2013.01);
Abstract
A power tool includes a power connection terminal, a power system, a main control switch, and a power supply protection circuit. A power supply path is disposed between the power connection terminal and the power system. The main control switch and the power supply protection circuit are configured to control the power supply path to be completed or broken. During the use of the tool, the power tool is not restarted if the main control switch is turned on before an external power source that meets a power supply requirement is connected.