Patents by Inventor Zhao Cai

Zhao Cai 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).

  • Method and device for accurately monitoring evaporation capacity of water surface evaporator in whole process
    Patent number: 11703370
    Abstract: A device for monitoring evaporation capacity of a water surface evaporator in a process includes a water surface evaporator and a rain collector, the rain collector and the water surface evaporator having a same size of orifice area, height, and contour profile of a monitoring device. One side of the water surface evaporator is connected with a first measuring well through a pipeline, and another side of the water surface evaporator is connected with a first electromagnetic flowmeter, a water supplementing electromagnetic valve and an overflow electromagnetic valve through a water pipe. The water supplementing electromagnetic valve is connected with a water supplementing barrel through a water supplementing pipe. A water collecting barrel is installed below the special rain collector. A second magnetostrictive water level meter, a starting drainage switch and a stopping drainage switch are installed in the second measuring well.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: July 18, 2023
    Assignee: NANJING HYDRAULIC RESEARCH INSTITUTE
    Inventors: Jiufu Liu, Zhao Cai, Suyi Liu, Ziyin Xie, Weizu Gu, Aimin Liao, Rong Zhang, Minhan Liao, Hongwei Liu, Wenzhong Wang, Huan Wang, Tao Ma, Niu Wang, Xuegang Li, Guangxu Jiang
  • Method and Device for Accurately Monitoring Evaporation Capacity of Water Surface Evaporator in Whole Process
    Publication number: 20210396567
    Abstract: A device for monitoring evaporation capacity of a water surface evaporator in a process includes a water surface evaporator and a rain collector, the rain collector and the water surface evaporator having a same size of orifice area, height, and contour profile of a monitoring device. One side of the water surface evaporator is connected with a first measuring well through a pipeline, and another side of the water surface evaporator is connected with a first electromagnetic flowmeter, a water supplementing electromagnetic valve and an overflow electromagnetic valve through a water pipe. The water supplementing electromagnetic valve is connected with a water supplementing barrel through a water supplementing pipe. A water collecting barrel is installed below the special rain collector. A second magnetostrictive water level meter, a starting drainage switch and a stopping drainage switch are installed in the second measuring well.
    Type: Application
    Filed: July 29, 2021
    Publication date: December 23, 2021
    Inventors: Jiufu Liu, Zhao Cai, Suyi Liu, Ziyin Xie, Weizu Gu, Aimin Liao, Rong Zhang, Minhan Liao, Hongwei Liu, Wenzhong Wang, Huan Wang, Tao Ma, Niu Wang, Xuegang Li, Guangxu Jiang
  • Driving circuit for providing constant current
    Patent number: 7714812
    Abstract: A driving circuit comprising a reference-voltage circuit, an amplifier, an adjusting circuit, and a current-setting circuit. The reference-voltage circuit is used for generating a reference voltage. The amplifier comprises a first input terminal used for receiving the reference voltage, a second input terminal used for receiving feedback voltage from a load, and an output terminal used for outputting an output current to the load. The adjusting circuit is used for adjusting a voltage of the load when a resistance of the load changes. The current-setting circuit is used for setting a value of the output current based on the feedback voltage.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: May 11, 2010
    Assignees: Hong Fu Jin Precision Industry (Shen Zhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Kai Dou, Zhang-Xiang Hu, Cho-Chuan Yang, Zhao-Cai Zhang, Jian-De Qing
  • DRIVING CIRCUIT FOR PROVIDING CONSTANT CURRENT
    Publication number: 20080122385
    Abstract: A driving circuit comprising a reference-voltage circuit, an amplifier, an adjusting circuit, and a current-setting circuit. The reference-voltage circuit is used for generating a reference voltage. The amplifier comprises a first input terminal used for receiving the reference voltage, a second input terminal used for receiving feedback voltage from a load, and an output terminal used for outputting an output current to the load. The adjusting circuit is used for adjusting a voltage of the load when a resistance of the load changes. The current-setting circuit is used for setting a value of the output current based on the feedback voltage.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Kai Dou, Zhang-Xiang Hu, Cho-Chuan Yang, Zhao-Cai Zhang, Jian-De Qing