Patents by Inventor Weifu LU

Weifu LU 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).

  • Image acquisition device and measuring method for geometric parameters of specific developing area on concrete test blocks
    Patent number: 11391560
    Abstract: An image acquisition device and a measuring method for geometric parameters of a specific developing area on a concrete test block. In the image acquisition device, a digital camera is provided on a camera support; the camera support is provided with a screw bearing which is connected to a first stepping motor via a first coupling; the camera support is provided on a screw slideway which is connected to a second stepping motor via a second coupling; the screw slideway, the first stepping motor and the second stepping motor are provided on a rear platform of a L-shaped base; a spirit level and a controller are respectively provided at two sides of the rear platform of the L-shaped base; and a reference glass plate is arranged on a front raised platform of the L-shaped base.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: July 19, 2022
    Assignee: GUANGXI UNIVERSITY
    Inventors: Lufeng Yang, Junwu Chen, Hao Kang, Xiani Liang, Zheng Chen, Jiaqi Zhao, Weizhe Sun, Wenting Nong, Weifu Lu, Linyu Gan
  • IMAGE ACQUISITION DEVICE AND MEASURING METHOD FOR GEOMETRIC PARAMETERS OF SPECIFIC DEVELOPING AREA ON CONCRETE TEST BLOCKS
    Publication number: 20200355490
    Abstract: An image acquisition device and a measuring method for geometric parameters of a specific developing area on a concrete test block. In the image acquisition device, a digital camera is provided on a camera support; the camera support is provided with a screw bearing which is connected to a first stepping motor via a first coupling; the camera support is provided on a screw slideway which is connected to a second stepping motor via a second coupling; the screw slideway, the first stepping motor and the second stepping motor are provided on a rear platform of a L-shaped base; a spirit level and a controller are respectively provided at two sides of the rear platform of the L-shaped base; and a reference glass plate is arranged on a front raised platform of the L-shaped base.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 12, 2020
    Inventors: Lufeng YANG, Junwu CHEN, Hao KANG, Xiani LIANG, Zheng CHEN, Jiaqi ZHAO, Weizhe SUN, Wenting NONG, Weifu LU, Linyu GAN