Patents by Inventor Zhengdao HUA

Zhengdao HUA 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).

  • Complex pressure environment test device
    Patent number: 11105721
    Abstract: A complex pressure environment test device, comprising a test table and a hydraulic control system. The test table comprises a base for fastening a closure head under test, and an outer cover; the base has water inlets and outlets. The hydraulic control system comprises a watering hydraulic pump, a pressurizing hydraulic pump, and a pilot-operated overflow valve; the watering hydraulic pump is separately connected to a first two-position two-way valve and a second two-position two-way valve; the second two-position two-way valve is connected to a second one-way valve; the second one-way valve is separately connected to a water inlet and a first pilot-operated pressure regulating valve; the first pilot-operated pressure regulating valve is separately connected to a first remote pressure regulating valve and a first one-way valve. There is also a hydraulic circuit is present and used for testing.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 31, 2021
    Assignee: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yun Chen, Jian Zhang, Si Zhang, Wenxian Tang, Yueyang Wang, Zhengdao Hua, Baoji Yin, Yongmei Zhu
  • COMPLEX PRESSURE ENVIRONMENT TEST DEVICE
    Publication number: 20210247282
    Abstract: A complex pressure environment test device, comprising a test table and a hydraulic control system. The test table comprises a base for fastening a closure head under test, and an outer cover; the base has water inlets and outlets. The hydraulic control system comprises a watering hydraulic pump, a pressurizing hydraulic pump, and a pilot-operated overflow valve; the watering hydraulic pump is separately connected to a first two-position two-way valve and a second two-position two-way valve; the second two-position two-way valve is connected to a second one-way valve; the second one-way valve is separately connected to a water inlet and a first pilot-operated pressure regulating valve; the first pilot-operated pressure regulating valve is separately connected to a first remote pressure regulating valve and a first one-way valve. There is also a hydraulic circuit is present and used for testing.
    Type: Application
    Filed: August 26, 2019
    Publication date: August 12, 2021
    Applicant: Jiangsu University of Science and Technology
    Inventors: Yun CHEN, Jian ZHANG, Si ZHANG, Wenxian TANG, Yueyang WANG, Zhengdao HUA, Baoji YIN, Yongmei ZHU