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. 24, 2020
Filed:
Apr. 18, 2018
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Chunrui Li, Nanjing, CN;
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Abstract
A power tool includes a motor, an output shaft and a gearbox assembly. The output shaft outputs torque when driven by the motor to rotate around a first axis. The gearbox assembly transmits power between the motor and the output shaft. The gearbox assembly includes a first case and a second case. The first case and the second case are configured to be coupled to each other to form an accommodating cavity. The gearbox assembly further includes a ring gear, a planet gear, a sun gear, and a front ring gear. The ring gear is rotatably disposed in the accommodating cavity. The planet gear is engaged with the ring gear. The sun gear is engaged with the planet gear.