Patents by Inventor Yongbi Chai

Yongbi Chai 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).

  • Vacuum cleaner floor brush with height-adjustable suction inlet
    Patent number: 12133622
    Abstract: The present disclosure provides a vacuum cleaner floor brush with a height-adjustable suction inlet. The vacuum cleaner floor brush includes a floor brush main body, a rolling brush, and a rolling brush cover with an arc-shaped cross section; the rolling brush is fixedly mounted on a preset rolling brush chamber on the floor brush main body; the floor brush main body is provided with a suction inlet adjustment plate; an inner wall of the suction inlet adjustment plate is a cambered surface; a lengthwise direction of the suction inlet adjustment plate is parallel to an axial direction of the rolling brush; two opposite ends in a width direction of the suction inlet adjustment plate respectively extend towards the rolling brush cover and a bottom suction inlet of the floor brush main body; and the suction inlet adjustment plate can flip along a circumferential direction of the rolling brush.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: November 5, 2024
    Inventors: Qi Zhang, Mingming Zhu, Yongbi Chai
  • VACUUM CLEANER FLOOR BRUSH WITH HEIGHT-ADJUSTABLE SUCTION INLET
    Publication number: 20220313038
    Abstract: The present disclosure provides a vacuum cleaner floor brush with a height-adjustable suction inlet. The vacuum cleaner floor brush includes a floor brush main body, a rolling brush, and a rolling brush cover with an arc-shaped cross section; the rolling brush is fixedly mounted on a preset rolling brush chamber on the floor brush main body; the floor brush main body is provided with a suction inlet adjustment plate; an inner wall of the suction inlet adjustment plate is a cambered surface; a lengthwise direction of the suction inlet adjustment plate is parallel to an axial direction of the rolling brush; two opposite ends in a width direction of the suction inlet adjustment plate respectively extend towards the rolling brush cover and a bottom suction inlet of the floor brush main body; and the suction inlet adjustment plate can flip along a circumferential direction of the rolling brush.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 6, 2022
    Inventors: Qi Zhang, Mingming Zhu, Yongbi Chai
  • Portable carpet cleaner
    Patent number: D1056376
    Type: Grant
    Filed: April 30, 2024
    Date of Patent: December 31, 2024
    Assignee: Ningbo Huayi Electronic Appliance Technology Co. , Ltd.
    Inventors: Zhikan Chu, Dingquan Zhang, Yongbi Chai, Huafeng Ge