Patents by Inventor Zongjing Li

Zongjing 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).

  • Grass trimming head and grass trimmer having the same
    Patent number: 11910743
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 27, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • GRASS TRIMMING HEAD AND GRASS TRIMMER HAVING THE SAME
    Publication number: 20230112033
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 13, 2023
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • Grass trimming head and grass trimmer having the same
    Patent number: 11503759
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: November 22, 2022
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • GRASS TRIMMING HEAD AND GRASS TRIMMER HAVING THE SAME
    Publication number: 20210368676
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • GRASS TRIMMING HEAD AND GRASS TRIMMER HAVING THE SAME
    Publication number: 20210022287
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • Grass trimming head and grass trimmer having the same
    Patent number: 10856466
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: December 8, 2020
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu
  • GRASS TRIMMING HEAD AND GRASS TRIMMER HAVING THE SAME
    Publication number: 20200170182
    Abstract: A grass trimming head includes a housing assembly and a spool. The housing assembly is formed with a housing cavity and an outer aperture for allowing a cutting line to be inserted from an outside of the housing assembly into the housing cavity. At least a portion of the spool is arranged inside the housing cavity, and the spool is rotatable with respect to the housing assembly about a central axis. The spool is formed with an inner aperture for allowing the cutting line to be inserted into the spool or a clamping portion configured to fix the cutting line.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Jianpeng Guo, Toshinari Yamaoka, Fangjie Nie, Qi Zhang, Zongjing Li, Fei Wang, Lanxi Xu