Patents by Inventor Maogui Jiang

Maogui Jiang 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).

  • On-line analyzer for VOCs and method of using the same
    Patent number: 8939011
    Abstract: The present invention relates to an on-line analyzer for VOCs in gas and method of using the same, comprising: a sampling device, a gas supply device and a refrigerating device connected to the sampling device and the gas supply device respectively; the on-line analyzer for VOCs in gas with two cryo-focuses in empty tubes and two detectors also comprises a gas flow control device connected to the sampling device and the gas-supply device respectively, an analyzing device connected to the gas flow control device, and a data acquisition and processing device connected to the analyzing device. Therefore, the present invention has a following advantage: the present invention runs automatically and continuously over a long period since it uses electronic refrigeration technique to achieve cryo-refrigeration, instead of using liquid nitrogen refrigeration technique which needs frequent addition of liquid nitrogen and limits application conditions.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 27, 2015
    Assignee: Wuhan Tianhong Instruments Co., Ltd
    Inventors: Hongjie Li, Changmian Han, Maogui Jiang, Pengjiao Wang
  • ON-LINE ANALYZER FOR VOCS AND METHOD OF USING THE SAME
    Publication number: 20140318217
    Abstract: The present invention relates to an on-line analyzer for VOCs in gas and method of using the same, comprising: a sampling device (1), an gas-supply device (2) and a refrigerating device (3) connected to the sampling device (1) and the gas-supply device (2) respectively; the on-line analyzer for VOCs in gas with two cryo-focuses in empty tubes and two detectors also comprises a gas flow control device (4) connected to the sampling device (1) and the gas-supply device (2) respectively, an analyzing device (5) connected to the gas flow control device (4), and a data acquisition and processing device connected to the analyzing device (5). Therefore, the present invention has a following advantage: the present invention runs automatically and continuously over a long period since it uses electronic refrigeration technique to achieve cryo-refrigeration, instead of using liquid nitrogen refrigeration technique which needs frequent addition of liquid nitrogen and limits application conditions.
    Type: Application
    Filed: July 20, 2012
    Publication date: October 30, 2014
    Applicant: WUHAN TIANHONG INSTRUMENTS CO., LTD
    Inventors: Hongjie Li, Changmian Han, Maogui Jiang, Pengjiao Wang