Patents by Inventor Yonggang Meng

Yonggang Meng 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: 20240192074
    Abstract: The present disclosure provides a method and system for automatically monitoring and identifying water seepage of a segment joint of a subway shield tunnel. The method includes: 1): grinding a water-sensitive material and then mixing with a waterproof material to form a color-developing agent; 2): coating the color-developing agent on two sides extending from a construction joint and/or a deformation joint of a tunnel lining as a center line, to form a color-developing layer; and 3) obtaining a color development feature of the color-developing layer, and identifying water seepage based on the color development feature. According to the present disclosure, a water seepage amount can be determined based on the color development feature of the color-developing layer around the construction joint and/or the deformation joint of the tunnel lining, which facilitates monitoring of the water seepage amount around the construction joint and/or the deformation joint.
    Type: Application
    Filed: December 8, 2023
    Publication date: June 13, 2024
    Inventors: Zhinan HU, Huibin WANG, Shuopeng MENG, Yonggang WANG, Zhanliang LIU, Shang GAO, Haining GUAN, Biao LI, Guangxian SUN, Yadong SUN, Wenkai CHAI, Jiancheng ZHOU
  • Publication number: 20240159692
    Abstract: The present invention discloses a device and method for measuring the relative permeability of propped fractures in shale considering probability distribution, comprising a gas cylinder, a water pump, a booster pump, a rock slab holder, a differential pressure sensor, a directional X-ray source, an X-ray detector, an X-ray shielding box, a tee, a liquid meter, a gas meter, an electronic balance, and a vacuum pump; the inlet of rock slab holder is respectively connected with the gas cylinder and the water pump by the pipe, the outlet is connected with the liquid meter and the vacuum pump by the tee, and the differential pressure sensor is connected with both ends of the rock slab holder; the booster pump is connected with the rock slab holder by the pipe; the inlet of the gas meter is connected with the liquid meter, and the outlet is connected to the external atmosphere.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 16, 2024
    Applicant: Southwest Petroleum University
    Inventors: Zhenglan LI, Yonggang DUAN, Mingqiang WEI, Quantang FANG, Le LUO, Keyi REN, Lei MENG, Shuxin LI, Zhihong NIE
  • Patent number: 11131040
    Abstract: The present disclosure provides an antimicrobial alginate fiber, a method for manufacturing an antimicrobial alginate fiber dressing thereof, and an application thereof. When the cationic polymer polyhexamethylene guanide salt is mixed with the anionic polymer alginate, the antimicrobial activity of the guanide salt is quickly passivated. The present disclosure achieves a lower content of polyhexamethylene guanide salt in an alginate dressing with good long-term antimicrobial activities. The polyhexamethylene guanide salt has a low dissolution rate, and significantly reduces a potential risk of carcinogenicity, mutagenicity and reproductive toxicity.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 28, 2021
    Assignee: HUIZHOU FORYOU MEDICAL DEVICES CO., LTD.
    Inventors: Yonggang Meng, Jinwen Mo
  • Publication number: 20210197397
    Abstract: Disclosed is a control device for adhesion and detachment, including a base, an actuator, and a movement mechanism including a bearing unit, a peeling unit, and an adhesion unit. The peeling unit is a thin sheet with a high elastic modulus and has a first side and a second side that are opposite to each other. An upper surface of the peeling unit is fixed on a lower surface of the bearing unit. The actuator is fixed to the first side of the peeling unit. The adhesion unit is arranged on a lower surface of the peeling unit. The peeling unit bends and elastically deforms from the first side towards the second side under an action of the actuator in such a manner that the adhesion unit moves synchronously. The peeling unit is in a flat state upon a recovery from the elastic deformation.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 1, 2021
    Inventors: Yu TIAN, Xiaosong LI, Hongyu LU, Xinxin LI, Yonggang MENG
  • Publication number: 20190284727
    Abstract: The present disclosure provides an antimicrobial alginate fiber, a method for manufacturing an antimicrobial alginate fiber dressing thereof, and an application thereof. When the cationic polymer polyhexamethylene guanide salt is mixed with the anionic polymer alginate, the antimicrobial activity of the guanide salt is quickly passivated. The present disclosure achieves a lower content of polyhexamethylene guanide salt in an alginate dressing with good long-term antimicrobial activities. The polyhexamethylene guanide salt has a low dissolution rate, and significantly reduces a potential risk of carcinogenicity, mutagenicity and reproductive toxicity.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Applicant: Huizhou Foryou Medical Devices Co., Ltd.
    Inventors: Yonggang MENG, Jinwen MO
  • Patent number: 10337972
    Abstract: A high-speed rheometer includes a base, a driving device disposed on the base, a lower sample assembly connected with the driving device, an upper sample assembly disposed above the lower sample assembly, a torsion bar disposed on the upper sample assembly and being torsional upon the rotation of the upper sample assembly, and an optical torque measuring assembly. The lower sample assembly is rotatable under the driving of the driving device, and the upper sample assembly is rotatable under the driving of the fluid. The optical torque measuring assembly is used to measure a torsion angle of the torsion bar so as to obtain a torque generated during shearing the fluid to be tested.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: July 2, 2019
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Yonggang Meng, Xiang Yu, Yu Tian, Jun Zhang
  • Patent number: 9816667
    Abstract: A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part (1) and a second friction part (2). Firstly a lubricant (4) is provided between the first and second friction parts (1, 2). Then a potential is applied on the first friction part (1) via the lubricant (4). And COF is controlled by controlling the potential. The lubricant (4) contains propylene carbonate and a surfactant.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: November 14, 2017
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Yonggang Meng, Xiaoyong Yang, Yu Tian
  • Publication number: 20170108422
    Abstract: A high-speed rheometer includes a base, a driving device disposed on the base, a lower sample assembly connected with the driving device, an upper sample assembly disposed above the lower sample assembly, a torsion bar disposed on the upper sample assembly and being torsional upon the rotation of the upper sample assembly, and an optical torque measuring assembly. The lower sample assembly is rotatable under the driving of the driving device, and the upper sample assembly is rotatable under the driving of the fluid. The optical torque measuring assembly is used to measure a torsion angle of the torsion bar so as to obtain a torque generated during shearing the fluid to be tested.
    Type: Application
    Filed: April 7, 2015
    Publication date: April 20, 2017
    Inventors: Yonggang MENG, Xiang YU, Yu TIAN, Jun ZHANG
  • Patent number: 9377286
    Abstract: A device for globally measuring a thickness of a metal film (901), comprises: a base (10); a rotating unit (20) comprising a fixed member (21) fixed on the base (10) and a rotating member (22) having a rotating joint (23); a working table (50) fixed on the rotating member (22) and having a vacuum passage which is formed therein and connected with the rotating joint (23); a linear driving unit (30) including a guide rail (31) fixed on the base (10) and a sliding block (32) slidable along the guide rail (31); a cantilever beam (40) disposed horizontally and defining a first end fixed with the sliding block (32) and a second end; a measuring head (80) connected to the second end of the cantilever beam (40), facing a surface of the working table (50) and having an eddy current probe (82) disposed therein.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 28, 2016
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xinchun Lu, Dewen Zhao, Zilian Qu, Qian Zhao, Yongyong He, Yonggang Meng
  • Publication number: 20150330565
    Abstract: A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part (1) and a second friction part (2). Firstly a lubricant (4) is provided between the first and second friction parts (1, 2). Then a potential is applied on the first friction part (1) via the lubricant (4). And COF is controlled by controlling the potential. The lubricant (4) contains propylene carbonate and a surfactant.
    Type: Application
    Filed: January 6, 2014
    Publication date: November 19, 2015
    Applicant: Tsinghua University
    Inventors: YONGGANG MENG, XIAOYONG YANG, YU TIAN
  • Publication number: 20140062468
    Abstract: A device for globally measuring a thickness of a metal film (901), comprises: a base (10); a rotating unit (20) comprising a fixed member (21) fixed on the base (10) and a rotating member (22) having a rotating joint (23); a working table (50) fixed on the rotating member (22) and having a vacuum passage which is formed therein and connected with the rotating joint (23); a linear driving unit (30) including a guide rail (31) fixed on the base (10) and a sliding block (32) slidable along the guide rail (31); a cantilever beam (40) disposed horizontally and defining a first end fixed with the sliding block (32) and a second end; a measuring head (80) connected to the second end of the cantilever beam (40), facing a surface of the working table (50) and having an eddy current probe (82) disposed therein.
    Type: Application
    Filed: November 17, 2011
    Publication date: March 6, 2014
    Applicant: Tsinghua University
    Inventors: Xinchun Lu, Dewen Zhao, Zilian Qu, Qian Zhao, Yongyong He, Yonggang Meng