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).
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Publication number: 20240192074Abstract: 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: ApplicationFiled: December 8, 2023Publication date: June 13, 2024Inventors: Zhinan HU, Huibin WANG, Shuopeng MENG, Yonggang WANG, Zhanliang LIU, Shang GAO, Haining GUAN, Biao LI, Guangxian SUN, Yadong SUN, Wenkai CHAI, Jiancheng ZHOU
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Publication number: 20240159692Abstract: 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: ApplicationFiled: December 30, 2022Publication date: May 16, 2024Applicant: Southwest Petroleum UniversityInventors: Zhenglan LI, Yonggang DUAN, Mingqiang WEI, Quantang FANG, Le LUO, Keyi REN, Lei MENG, Shuxin LI, Zhihong NIE
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Patent number: 11131040Abstract: 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: GrantFiled: May 31, 2019Date of Patent: September 28, 2021Assignee: HUIZHOU FORYOU MEDICAL DEVICES CO., LTD.Inventors: Yonggang Meng, Jinwen Mo
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Publication number: 20210197397Abstract: 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: ApplicationFiled: March 18, 2021Publication date: July 1, 2021Inventors: Yu TIAN, Xiaosong LI, Hongyu LU, Xinxin LI, Yonggang MENG
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Publication number: 20190284727Abstract: 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: ApplicationFiled: May 31, 2019Publication date: September 19, 2019Applicant: Huizhou Foryou Medical Devices Co., Ltd.Inventors: Yonggang MENG, Jinwen MO
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Patent number: 10337972Abstract: 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: GrantFiled: April 7, 2015Date of Patent: July 2, 2019Assignee: TSINGHUA UNIVERSITYInventors: Yonggang Meng, Xiang Yu, Yu Tian, Jun Zhang
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Patent number: 9816667Abstract: 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: GrantFiled: January 6, 2014Date of Patent: November 14, 2017Assignee: TSINGHUA UNIVERSITYInventors: Yonggang Meng, Xiaoyong Yang, Yu Tian
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Publication number: 20170108422Abstract: 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: ApplicationFiled: April 7, 2015Publication date: April 20, 2017Inventors: Yonggang MENG, Xiang YU, Yu TIAN, Jun ZHANG
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Patent number: 9377286Abstract: 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: GrantFiled: November 17, 2011Date of Patent: June 28, 2016Assignee: TSINGHUA UNIVERSITYInventors: Xinchun Lu, Dewen Zhao, Zilian Qu, Qian Zhao, Yongyong He, Yonggang Meng
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Publication number: 20150330565Abstract: 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: ApplicationFiled: January 6, 2014Publication date: November 19, 2015Applicant: Tsinghua UniversityInventors: YONGGANG MENG, XIAOYONG YANG, YU TIAN
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Publication number: 20140062468Abstract: 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: ApplicationFiled: November 17, 2011Publication date: March 6, 2014Applicant: Tsinghua UniversityInventors: Xinchun Lu, Dewen Zhao, Zilian Qu, Qian Zhao, Yongyong He, Yonggang Meng