Patents by Inventor Jinfa LI

Jinfa 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).

  • Patent number: 12715069
    Abstract: A thermos cup vacuumizing device and method are provided. The thermos cup vacuumizing device includes a pre-vacuumizing chamber, a heating chamber, a welding chamber, and a cooling chamber. A continuous conveying device is provided at a bottom of each of the chambers. The thermos cup vacuumizing device further includes a controllable and movable laser welding device and multiple transparent windows. A laser beam of the laser welding device passes through the transparent windows to melt a welding ball at provided at a hole in the center of the bottom of the thermos cup. A vertically movable inlet valve is provided at an inlet of the pre-vacuumizing chamber, and a vertically movable outlet valve is provided at an outlet of the cooling chamber.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: August 25, 2026
    Assignee: ZHEJIANG HAERS VACUUM CONTAINERS CO., LTD.
    Inventors: Jinfa Li, Jinsheng Du, Wei Li, Yunsheng Sun, Runjun Liu, Yangbo Ou
  • Publication number: 20230173612
    Abstract: A thermos cup vacuumizing device and method are provided. The thermos cup vacuumizing device includes a pre-vacuumizing chamber, a heating chamber, a welding chamber, and a cooling chamber. A continuous conveying device is provided at a bottom of each of the chambers. The thermos cup vacuumizing device further includes a controllable and movable laser welding device and multiple transparent windows. A laser beam of the laser welding device passes through the transparent windows to melt a welding ball at provided at a hole in the center of the bottom of the thermos cup. A vertically movable inlet valve is provided at an inlet of the pre-vacuumizing chamber, and a vertically movable outlet valve is provided at an outlet of the cooling chamber. The present disclosure realizes the continuous vacuumizing operation on the thermos cups, improves the product qualification rate and processing efficiency, and realizes automatic mass production.
    Type: Application
    Filed: October 14, 2022
    Publication date: June 8, 2023
    Applicant: ZHEJIANG HAERS VACUUM CONTAINERS CO., LTD.
    Inventors: Jinfa LI, Jinsheng DU, Wei LI, Yunsheng SUN, Runjun LIU, Yangbo OU