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:
Dec. 24, 2019
Filed:
Dec. 14, 2016
Chervon (Hk) Limited, Wanchai, HK;
Guoxing Mao, Nanjing, CN;
Chevron (HK) Limited, Wanchai, HK;
Abstract
A power tool includes a motor with a drive shaft being capable of rotating around a first axis, a housing for containing the motor, an output shaft for outputting torque, a transmission mechanism for transferring power between the drive shaft and the output shaft, and an adjusting device for adjusting ratios between the drive shaft and the output shaft. The transmission mechanism includes a first planet gear assembly including a first planet gear and a first planet carrier, a second planet gear assembly including a second planet gear and a second planet carrier, and a ring gear with inner teeth. The first and second planet gears can be engaged with the ring gear and the first and second planet gears are engaged with the first and second sun gears, respectively.