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. 17, 2021
Filed:
Oct. 02, 2019
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Chervon (Hk) Limited, Hong Kong, CN;
Jianpeng Guo, Nanjing, CN;
Maohui Li, Nanjing, CN;
Fangjie Nie, Nanjing, CN;
Toshinari Yamaoka, Nanjing, CN;
Nanjing Chervon Industry Co., LTD., Nanjing, CN;
Chervon (HK) Limited, Hong Kong, CN;
Abstract
A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.