Patents by Inventor Kejin Li

Kejin 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: 20240009872
    Abstract: The invention relates to an electrically driven device, for example an electric hair removal device, such as a wet or dry shaver, an electric toothbrush or an electric skin treatment device. The electrically driven device comprises a housing having a chassis, wherein the chassis comprises an electric motor having a first drive shaft, a battery unit, and an oscillating body having a second drive shaft. A first longitudinal axis is defined arranged along the second drive shaft, a second longitudinal axis is defined arranged along the first drive shaft, and a third longitudinal axis is defined arranged through the center of the body of the battery unit, wherein the second longitudinal axis and/or the third longitudinal axis are parallel offset to the first longitudinal axis.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 11, 2024
    Inventors: Tiandong Guo, Xinwu Lai, Kejin LI, Detlef Gleich, Uwe Fischer, Bernd Stassen
  • Publication number: 20240001571
    Abstract: The invention relates to a swing bridge for converting a rotary motion into an oscillating motion, especially into a linear oscillating motion, especially within an electrically driven device. The swing bridge comprises an oscillating body defining a plane. The oscillating body comprises a slot arranged in the plane, wherein a first axis extends through the slot perpendicular to the plane, and a drive shaft protruding perpendicular to the plane along a second axis.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 4, 2024
    Inventors: Tiandong Guo, Xinwu Lai, Kejin Li, Detlef Gleich, Uwe Fischer, Bernd Stassen
  • Publication number: 20220001554
    Abstract: The invention relates to a swing bridge for converting a rotary motion into an oscillating motion, especially into a linear oscillating motion, especially within an electrically driven device. The swing bridge comprises an oscillating body defining a plane. The oscillating body comprises a slot arranged in the plane, wherein a first axis extends through the slot perpendicular to the plane, and a drive shaft protruding perpendicular to the plane along a second axis.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Inventors: Tiandong Guo, Xinwu Lai, Kejin Li, Detlef Gleich, Uwe Fischer, Bernd Stassen
  • Publication number: 20220001555
    Abstract: The invention relates to an electrically driven device, for example an electric hair removal device, such as a wet or dry shaver, an electric toothbrush or an electric skin treatment device. The electrically driven device comprises a housing having a chassis, wherein the chassis comprises an electric motor having a first drive shaft, a battery unit, and an oscillating body having a second drive shaft. A first longitudinal axis is defined arranged along the second drive shaft, a second longitudinal axis is defined arranged along the first drive shaft, and a third longitudinal axis is defined arranged through the center of the body of the battery unit, wherein the second longitudinal axis and/or the third longitudinal axis are parallel offset to the first longitudinal axis.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Inventors: Tiandong Guo, Xinwu Lai, Kejin LI, Detlef Gleich, Uwe Fischer, Bernd Stassen