Patents by Inventor Kangjie Chen

Kangjie Chen 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).

  • Transmission stopping device for cordless curtain
    Patent number: 10557305
    Abstract: A transmission stopping device for a cordless curtain includes a box assembly and a stop wheel assembly disposed in the box assembly. The stop wheel assembly includes a torsion wheel and a stop wheel. The stop wheel is provided with balls therein. A rotation-stopping assembly is provided between the stop wheel and the box assembly. The cooperation between the balls of the stop wheel and the rotation-stopping assembly in the box assembly ensures that the ascent and descent of a curtain achieves an accurate positioning.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: February 11, 2020
    Assignee: ZHEJIANG WANBAO WEAVING AND PLASTICS CO., LTD.
    Inventors: Xiaohua Su, Kangjie Chen
  • TRANSMISSION STOPPING DEVICE FOR CORDLESS CURTAIN
    Publication number: 20180252031
    Abstract: A transmission stopping device for a cordless curtain includes a box assembly and a stop wheel assembly disposed in the box assembly. The stop wheel assembly includes a torsion wheel and a stop wheel. The stop wheel is provided with balls therein. A rotation-stopping assembly is provided between the stop wheel and the box assembly. The cooperation between the balls of the stop wheel and the rotation-stopping assembly in the box assembly ensures that the ascent and descent of a curtain achieves an accurate positioning.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 6, 2018
    Inventors: Xiaohua Su, Kangjie Chen