Patents by Inventor Wanghao Li

Wanghao 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: 20210084842
    Abstract: The application provides a multifunctional robotic device including a body, an energy unit installed in the body, a power unit powered by the energy unit, the power unit including an output shaft wherein the output shaft is located at the lower part of the body and exposed from the body, and at least two working units, the working unit is detachably connected to output shaft of the power unit and driven by the power unit.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Inventors: Jin Cao, Jie Gao, Wanghao Li
  • Publication number: 20210084815
    Abstract: The invention provides a mower. The mower comprises a housing and a cutting device arranged in the housing. The mower is provided with a height adjustment device. The height adjustment device comprises a rotating member and a traction member arranged on the housing. One end of the traction member is fixed on the rotating member, and the other end of the traction member is fixed on the cutting device. The rotating member rotates to drive the traction member to adjust the height of the cutting device. Such an arrangement makes the mower have a simple structure, save internal space of the mower, and be convenient to operate.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 25, 2021
    Inventors: Wanghao Li, Jin Cao, Jie Gao, Van Cuong Bui, Johanna Olsson
  • Publication number: 20210083490
    Abstract: The present invention provides a charging coupling including a first charging assembly, the first charging assembly including a first elastic terminal and a second elastic terminal, a receiving space being formed between the first elastic terminal and the second elastic terminal, a tapered opening being provided on one side of the first charging assembly, the tapered opening communicating with the receiving space; and a second charging assembly adapted to the first charging assembly, one side of the second charging assembly being provided with a protrusion, a third elastic terminal and a fourth elastic terminal disposed on the protrusion, the third elastic terminal including a first convex portion and fourth elastic terminal including a second convex portion, and the convex portion being used for inserting into the receiving space from the tapered opening.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 18, 2021
    Inventors: Jin Cao, Jie Gao, Wanghao Li