Patents by Inventor Qingliang Liu

Qingliang Liu 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).

  • Patent number: 12077679
    Abstract: Disclosed are an intumescent fire-retardant coating with ultra-high corrosion resistance and a preparation method thereof. The fire-retardant coating is composed by water, wetting and dispersing agent, defoaming agent, composite carbon-forming catalyst, composite blowing agent, pentaerythritol, titanium dioxide, Mg(OH)2, mica powder, kaolin, anti-rust pigment, aluminum tripolyphosphate, VAE emulsion, freeze-thaw agent, film-forming aid, and thickener. On the basis of the existing fire-retardant coatings, the present disclosure adds a series of anti-corrosion, heat insulation fillers and salt spray resistance additives to achieve a certain salt spray resistance effect. The fire-retardant coating of the present disclosure has both fire-retardant and anticorrosive functions, does not contain organic solvents, is low in price, has high construction tolerance, and has broad application prospects in the field of intumescent fire-retardant coatings.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: September 3, 2024
    Assignees: FUJIAN SOUTH PEAK FIRE PREVENTION TECHNOLOGY CO., LTD., XIAMEN UNIVERSITY
    Inventors: Jianghai Fang, Lizong Dai, Qingliang Liu, Yansong Liu, Huanhuan Xu, Chun'e Guo
  • Patent number: 12031984
    Abstract: A detection device using a lateral flow strip for detection and a detection method thereof are provided, which relates to the technical field of a detection device using a lateral flow strip. An upper rotor, a middle rotor and a lower rotor are respectively provided with upper paddle(s), middle paddle(s) and lower paddle(s) along respective circumferential directions. Each upper paddle is provided with a test tube with openings at both ends thereof for placing the lateral flow strip. The middle paddle blocks a bottom one of the openings of the test tube. Each lower paddle is provided with a sample tube for placing sample solution. The bottom opening of the test tube is opposite to a top opening of the sample tube up and down.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: July 9, 2024
    Assignee: CHINA AGRICULTURAL UNIVERSITY
    Inventors: Nan Cheng, Xiaoyun He, Wentao Xu, Kunlun Huang, Yunbo Luo, Qian Zhang, Qingliang Liu
  • Publication number: 20230075293
    Abstract: A detection device using a lateral flow strip for detection and a detection method thereof are provided, which relates to the technical field of a detection device using a lateral flow strip. An upper rotor, a middle rotor and a lower rotor are respectively provided with upper paddle(s), middle paddle(s) and lower paddle(s) along respective circumferential directions. Each upper paddle is provided with a test tube with openings at both ends thereof for placing the lateral flow strip. The middle paddle blocks a bottom one of the openings of the test tube. Each lower paddle is provided with a sample tube for placing sample solution. The bottom opening of the test tube is opposite to a top opening of the sample tube up and down.
    Type: Application
    Filed: October 27, 2021
    Publication date: March 9, 2023
    Applicant: CHINA AGRICULTURAL UNIVERSITY
    Inventors: Nan CHENG, Xiaoyun HE, Wentao XU, Kunlun HUANG, Yunbo LUO, Qian ZHANG, Qingliang LIU
  • Publication number: 20220177713
    Abstract: Disclosed are an intumescent fire-retardant coating with ultra-high corrosion resistance and a preparation method thereof. The fire-retardant coating is composed by water, wetting and dispersing agent, defoaming agent, composite carbon-forming catalyst, composite blowing agent, pentaerythritol, titanium dioxide, Mg(OH)2, mica powder, kaolin, anti-rust pigment, aluminum tripolyphosphate, VAE emulsion, freeze-thaw agent, film-forming aid, and thickener. On the basis of the existing fire-retardant coatings, the present disclosure adds a series of anti-corrosion, heat insulation fillers and salt spray resistance additives to achieve a certain salt spray resistance effect. The fire-retardant coating of the present disclosure has both fire-retardant and anticorrosive functions, does not contain organic solvents, is low in price, has high construction tolerance, and has broad application prospects in the field of intumescent fire-retardant coatings.
    Type: Application
    Filed: November 24, 2021
    Publication date: June 9, 2022
    Inventors: Jianghai Fang, Lizong Dai, Qingliang Liu, Yansong Liu, Huanhuan Xu, Chun'e Guo
  • Patent number: 11198619
    Abstract: A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 14, 2021
    Assignee: Harbin Institute of Technology
    Inventors: Jun Ma, Yulei Liu, Lu Wang, Qingliang Liu, Xiaodan Zhao
  • Publication number: 20190144297
    Abstract: A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 16, 2019
    Inventors: Jun MA, Yulei LIU, Lu WANG, Qingliang LIU, Xiaodan ZHAO
  • Patent number: 10196279
    Abstract: A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 5, 2019
    Inventors: Jun Ma, Yulei Liu, Lu Wang, Qingliang Liu, Xiaodan Zhao
  • Patent number: 9902624
    Abstract: A preparation method for a composite ferrate reagent. 1, Weigh raw materials; 2, evenly mix a ferric salt, an activating agent and an alkali maintaining agent and heat the mixture; 3, add an oxidant solution; and 4, cool and mix the solution with water. The technical problems of high energy consumption, low yield and poor ferrate product stability of the existing method for preparing ferrate are solved. The obtained product can be stably stored, and the yield of the ferrate reaches 60% to 95%.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: February 27, 2018
    Inventors: Jun Ma, Yulei Liu, Lu Wang, Xiaodan Zhao, Qingliang Liu
  • Publication number: 20170001878
    Abstract: A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.
    Type: Application
    Filed: January 22, 2015
    Publication date: January 5, 2017
    Applicant: Harbin Institute of Technology
    Inventors: Jun MA, Yulei LIU, Lu WANG, Qingliang LIU, Xiaodan ZHAO
  • Publication number: 20160326011
    Abstract: A preparation method for a composite ferrate reagent. 1, Weigh raw materials; 2, evenly mix a ferric salt, an activating agent and an alkali maintaining agent and heat the mixture; 3, add an oxidant solution; and 4, cool and mix the solution with water. The technical problems of high energy consumption, low yield and poor ferrate product stability of the existing method for preparing ferrate are solved. The obtained product can be stably stored, and the yield of the ferrate reaches 60% to 95%.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 10, 2016
    Inventors: Jun MA, Yulei LIU, Lu WANG, Xiaodan ZHAO, Qingliang LIU
  • Patent number: 7920591
    Abstract: A method and a device for realizing dynamic adjustment of data bandwidth of the invention are disclosed. The method comprises adding a control channel in a PCM trunk link to describe occupancy condition of time slots for current services. The device comprises a control word process circuit, a time slot distribution circuit and a CPU interface circuit, wherein the control word process circuit is designed to complete abstraction and insertion of control information in a control channel of E1/T1 link, the time slot distribution circuit completes separating voice time slots from Ethernet data time slots and rebuilding the data, and the CPU interface circuit implements time slot distribution control. The method and the device can implement dynamic adjustment of Ethernet data bandwidth while ensuring voice services, to make effective use of trunk bandwidth and enhance user's data service bandwidth, without error code and interruption of data service during bandwidth adjustment.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: April 5, 2011
    Assignee: ZTE Corporation
    Inventors: Qingliang Liu, Chang Zhou, Rong Liu
  • Publication number: 20060176905
    Abstract: A method and a device for realizing dynamic adjustment of data bandwidth of the invention are disclosed. The method comprises adding a control channel in a PCM trunk link to describe occupancy condition of time slots for current services. The device comprises a control word process circuit, a time slot distribution circuit and a CPU interface circuit, wherein the control word process circuit is designed to complete abstraction and insertion of control information in a control channel of E1/T1 link, the time slot distribution circuit completes separating voice time slots from Ethernet data time slots and rebuilding the data, and the CPU interface circuit implements time slot distribution control. The method and the device can implement dynamic adjustment of Ethernet data bandwidth while ensuring voice services, to make effective use of trunk bandwidth and enhance user's data service bandwidth, and there is no error code and interruption of data service during bandwidth adjustment.
    Type: Application
    Filed: December 2, 2003
    Publication date: August 10, 2006
    Inventors: Qingliang Liu, Chang Zhou, Rong Liu