Patents by Inventor Weiwei LV

Weiwei LV 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).

  • Air pre-cleaning assembly and electric tool having same
    Patent number: 11374467
    Abstract: An air pre-cleaning assembly includes a motor that has a stator and a rotor shaft assembly configured with a fan. The motor is disposed at the upstream of the fan, and rotation of the fan is configured to yield an air flow passing through the motor. A cyclone separating element on the upstream path of the air flow on the motor includes an air inlet, a separating chamber, a dust collecting chamber, and an air outlet. The separating chamber is communicated with the air inlet. The dust collecting chamber is communicated with the separating chamber and located at its outer periphery. The air outlet is communicated with the separating chamber and located at its inner periphery. The motor is located at the downstream of the air outlet. The cyclone separating element allows clean air filtered by cyclone filtering to pass through the motor via the air outlet.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 28, 2022
    Assignees: Bosch Power Tools (China) Co., Ltd., Robert Bosch GmbH
    Inventors: Weiwei Lv, Xing Wu, Jiguo Liu
  • Air Pre-Cleaning Assembly and Electric Tool having Same
    Publication number: 20200099275
    Abstract: An air pre-cleaning assembly includes a motor that has a stator and a rotor shaft assembly configured with a fan. The motor is disposed at the upstream of the fan, and rotation of the fan is configured to yield an air flow passing through the motor. A cyclone separating element on the upstream path of the air flow on the motor includes an air inlet, a separating chamber, a dust collecting chamber, and an air outlet. The separating chamber is communicated with the air inlet. The dust collecting chamber is communicated with the separating chamber and located at its outer periphery. The air outlet is communicated with the separating chamber and located at its inner periphery. The motor is located at the downstream of the air outlet. The cyclone separating element allows clean air filtered by cyclone filtering to pass through the motor via the air outlet.
    Type: Application
    Filed: February 13, 2018
    Publication date: March 26, 2020
    Inventors: Weiwei LV, Xing WU, Jiguo LIU