Patents by Inventor Zhanhu Ma

Zhanhu Ma 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).

  • Blower
    Publication number: 20190162192
    Abstract: A blower includes a housing having an air inlet; a motor; an axial fan, driven by the motor to rotate along a fan axis and generate air flow, and the axial fan comprising a hub and impeller; a blowing tube, comprising an air outlet for the air exiting; and a duct, comprising a guiding cone which is located between the axial fan and the air outlet, and used for guiding the air flow generated by the axial fan to move to the air outlet, wherein a size of the motor is configured in a manner that the motor cannot be contained in the guiding cone, the housing and the blowing tube are internally provided with an air passage, the motor is completely contained in the air passage of the housing, and the motor and the duct are located on two opposite sides of the axial fan.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Zhendong Gao, Andrea Cestonaro, Xiahong Zha, Fengli Zhao, Lixiang Huo, Xuefeng Yu, Kang Song, Zhanhu Ma
  • Blower and a blowing vacuum device
    Patent number: 10227988
    Abstract: A blower, comprising: a housing comprising an air inlet, a motor disposed in the housing, an axial fan configured to be driven to rotate about a fan axis and generate an air flow by the motor, a blowing tube configured to be coupled to the housing and comprising an air outlet, a duct configured to guide the air flow to the air outlet, the housing and the blowing tube comprises an air passage which comprises an upstream region between the inlet and the axial fan and a downstream region between the axial fan and the air outlet, the motor is disposed in the upstream region and the duct is disposed in the downstream region.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: March 12, 2019
    Assignee: Positec Power Tools (Suzhou) Co., Ltd.
    Inventors: Zhendong Gao, Andrea Cestonaro, Xiahong Zha, Fengli Zhao, Lixiang Huo, Xuefeng Yu, Kang Song, Zhanhu Ma
  • A BLOWER AND A BLOWING VACUUM DEVICE
    Publication number: 20170260985
    Abstract: A blower, comprising: a housing comprising an air inlet, a motor disposed in the housing, an axial fan configured to be driven to rotate about a fan axis and generate an air flow by the motor, a blowing tube configured to be coupled to the housing and comprising an air outlet, a duct configured to guide the air flow to the air outlet, the housing and the blowing tube comprises an air passage which comprises an upstream region between the inlet and the axial fan and a downstream region between the axial fan and the air outlet, the motor is disposed in the upstream region and the duct is disposed in the downstream region.
    Type: Application
    Filed: November 27, 2015
    Publication date: September 14, 2017
    Inventors: Zhendong Gao, Andrea Cestonro, Xiahong Zha, Fengli Zhao, Lixiang Huo, Xuefeng Yu, Kang Song, Zhanhu Ma