Patents by Inventor Zhifu Lin

Zhifu Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Grass trimmer with anti-sticking mechanism and method for using the same
    Patent number: 11844301
    Abstract: A grass trimmer with an anti-sticking mechanism may include a first handle, a mounting rod, and a second handle. The first handle is arranged on top of the mounting rod. The second handle is arranged on the mounting rod close to the first handle. A battery pack is arranged at a bottom end of the first handle. A machine head housing is arranged at a bottom end of the mounting rod. A first motor is arranged inside the machine head housing. A mounting shaft is on an output shaft of the first motor via a coupling. A cutting wheel is arranged at a bottom of the mounting shaft.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: December 19, 2023
    Inventors: Zhifu Lin, Rongyan Luo, Yuzhu Zeng
  • Lawn mower
    Patent number: D996933
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: August 29, 2023
    Assignee: Yongkang Xinsen Industry and Trade Co., Ltd.
    Inventor: Zhifu Lin