Patents by Inventor Chengzhong Li

Chengzhong Li 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).

  • Publication number: 20240032489
    Abstract: A garden tool with a blowing function includes a housing having an air inlet; a blowing tube, connected with the housing, wherein the blowing tube is provided with an air outlet for air to be blown out; a fan, rotating around a fan axis, for making air flow and blowing the air out from the air outlet; and a motor, configured for driving the fan to rotate around the fan axis; wherein when the motor operates at a maximum rotational speed, blowing force F and noise LP of the garden tool with a blowing function satisfy following relationships: 16 N?F?23 N, and 53 dBA?LP<57 dBA; or 23 N<F?40 N, and 53 dBA?LP?0.0121F2?0.0603F+53.065 dBA.
    Type: Application
    Filed: September 11, 2023
    Publication date: February 1, 2024
    Inventors: Zhengwei Liu, Wenhui Xie, Chengzhong Li, Xuefeng Yu, Fengwei Duan, Shiping Jiao