Patents by Inventor Chang Xia

Chang Xia 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).

  • Publication number: 20230400428
    Abstract: A soil landslide matrix suction testing method and system based on soil body conductivity.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 14, 2023
    Inventors: Wenbin JIAN, Yunzhao LIN, Chang XIA, Ruimin CHEN, Xin ZHONG, Hongqiang DOU, Xiufeng FAN
  • Publication number: 20110277389
    Abstract: A magnetically levitated antiseismic structure comprises a main structure and one or more substructures. A first electromagnet is arranged at a base of the substructure and a corresponding second electromagnet is arranged on the substrate beneath the first electromagnet, both of the first and second electromagnets having the same electromagnetic polarity when they are electrically connected to a power source. The first and second electromagnets are electrically connected to an electromagnetic control device, and the electromagnet control device including an earthquake signal receiver. The present invention can effectively free people from damages and injuries from the earthquake.
    Type: Application
    Filed: June 30, 2011
    Publication date: November 17, 2011
    Applicant: FUZHOU PLANNING DESIGN & RESEARCH INSTITUTE
    Inventor: Chang Xia
  • Patent number: 7730762
    Abstract: Provided is a device for testing an isolation structure comprising an isolation layer having an upper beam, a lower beam and a top beam plate, along with an upper portion, the device comprising a plurality of upper corbels, a plurality of lower corbels, a plurality of hoisting jacks, a plurality of acceleration sensors, a plurality of displacement sensors, an acceleration collecting analyzer and a displacement collecting analyzer. A method for testing an isolation structure is also provided.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: June 8, 2010
    Inventor: Chang Xia
  • Publication number: 20090064798
    Abstract: Provided is a device for testing an isolation structure comprising an isolation layer having an upper beam, a lower beam and a top beam plate, along with an upper portion, the device comprising a plurality of upper corbels, a plurality of lower corbels, a plurality of hoisting jacks, a plurality of acceleration sensors, a plurality of displacement sensors, an acceleration collecting analyzer and a displacement collecting analyzer. A method for testing an isolation structure is also provided.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 12, 2009
    Inventor: Chang XIA