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:
Nov. 17, 2020
Filed:
Aug. 29, 2018
Applicant:
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Inventors:
Qingsong Yang, Nanjing, CN;
Wei Wei, Nanjing, CN;
Assignee:
Nanjing Chevron Industry Co., Ltd., Nanjing, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01); B24B 23/02 (2006.01); B24B 47/12 (2006.01);
U.S. Cl.
CPC ...
B25F 5/008 (2013.01); B24B 23/028 (2013.01); B24B 47/12 (2013.01); B25F 5/001 (2013.01);
Abstract
A hand-held power tool includes a housing, a motor having a motor shaft, and a fan mounted onto the motor shaft and driven by the motor. The fan has a plurality of large and small fan blades arranged in a staggered form on a surface of the fan. Such arrangement of the fan blades effectively improve the heat dissipation efficiency of the power tool.