Patents by Inventor Jianliang PEI

Jianliang PEI 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: 10018595
    Abstract: A fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to arrange the installation bases on the fixing frame. The fixing frame is an assembled loop-shaped frame and includes between two and four frame members and corresponding fixing structures; and the frame members are assembled into an integrated loop-shaped frame by the fixing structures. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 10, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang
  • Patent number: 10006887
    Abstract: An adjustable fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to install the installation bases on the fixing frame. The fixing frame is a rectangular frame, and at least a pair of opposite frame walls of four frame walls is provided with installation slots adapted to install the installation mechanisms. The installation slots positioned at different frame walls are in a same cross section of the rectangular frame. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 26, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Yang Ju, Jianliang Pei, Lu Wang, Huining Xu, Yangmengdi Xu, Feng Dai, Wenxi Fu
  • Patent number: 9500574
    Abstract: A rock sample fixing device with a three-jaw chuck for cyclic tension and compression testing including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 22, 2016
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang, Yangmengdi Xu, Hang Zou
  • Patent number: 9494502
    Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, and a second central position-limit mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, and a fourth central position-limit mechanism. The upper end cap includes a second sample fixing groove and a second connecting segment.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 15, 2016
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Yang Ju, Jianliang Pei, Lu Wang, Huining Xu, Fei Wu
  • Patent number: 9488559
    Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, fourth central position-limit mechanism, and a second hydraulic mechanism. The upper end cap includes: a second sample fixing groove and a second connecting segment.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 8, 2016
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Jianliang Pei, Huining Xu, Lu Wang, Zhiwei Zhou, Yue Zhuo, Feng Dai, Wenxi Fu
  • Patent number: 9488560
    Abstract: A rock sample fixing device with position-limit spring components for cyclic tension and compression tests including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 8, 2016
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang, Fei Wu, Wenxi Fu
  • Publication number: 20160231216
    Abstract: A rock sample fixing device with a three-jaw chuck for cyclic tension and compression testing including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Yang JU, Jianliang PEI, Huining XU, Lu WANG, Yangmengdi XU, Hang ZOU
  • Publication number: 20160231287
    Abstract: A fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to arrange the installation bases on the fixing frame. The fixing frame is an assembled loop-shaped frame and includes between two and four frame members and corresponding fixing structures; and the frame members are assembled into an integrated loop-shaped frame by the fixing structures. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Heping XIE, Yang JU, Jianliang PEI, Huining XU, Lu WANG
  • Publication number: 20160231213
    Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, and a second central position-limit mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, and a fourth central position-limit mechanism. The upper end cap includes a second sample fixing groove and a second connecting segment.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Heping XIE, Yang JU, Jianliang PEI, Lu WANG, Huining XU, Fei WU
  • Publication number: 20160231215
    Abstract: A rock sample fixing device with position-limit spring components for cyclic tension and compression tests including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Heping XIE, Yang JU, Jianliang PEI, Huining XU, Lu WANG, Fei WU, Wenxi FU
  • Publication number: 20160231286
    Abstract: An adjustable fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to install the installation bases on the fixing frame. The fixing frame is a rectangular frame, and at least a pair of opposite frame walls of four frame walls is provided with installation slots adapted to install the installation mechanisms. The installation slots positioned at different frame walls are in a same cross section of the rectangular frame. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Yang JU, Jianliang PEI, Lu WANG, Huining XU, Yangmengdi XU, Feng DAI, Wenxi FU
  • Publication number: 20160231214
    Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, fourth central position-limit mechanism, and a second hydraulic mechanism. The upper end cap includes: a second sample fixing groove and a second connecting segment.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Inventors: Jianfeng LIU, Jianliang PEI, Huining XU, Lu WANG, Zhiwei ZHOU, Yue ZHUO, Feng DAI, Wenxi FU
  • Publication number: 20160103049
    Abstract: A rock specimen, including a rock body. The rock body includes: an upper part, an upper end face, a first circular groove, a first cylinder, a first circular body, a lower part, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with a center of the upper end face. A method for testing pure shear of the rock specimen, includes: 1) disposing the rock specimen on a test bench of a rock mechanics testing system, allowing the end face of the second circular body to contact the test bench; and 2) operating the rock mechanics testing system, loading a pressure on the rock specimen via the end face of the first cylinder and the end face of the second circular body.
    Type: Application
    Filed: October 12, 2015
    Publication date: April 14, 2016
    Inventors: Jianfeng LIU, Heping XIE, Jianhui DENG, Lu WANG, Jianliang PEI, Yong XIANG, Linrui LI, Yu BIAN, Huining XU, Zhiwei ZHOU
  • Publication number: 20160103047
    Abstract: A rock specimen, including a rock body having the shape of a cylinder or a regular square prism. The rock body includes: an upper end face, a first circular groove, a first cylinder, a first circular body, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with the center of the upper end face of the rock body. The second circular groove is disposed on the lower end face of the rock body and has a circle center coinciding with the center of the lower end face of the rock body. The outer diameter of the first circular groove is smaller than the inner diameter of the second circular groove, and the first circular groove and the second circular groove are staggered.
    Type: Application
    Filed: October 10, 2015
    Publication date: April 14, 2016
    Inventors: Jianfeng LIU, Heping XIE, Lu WANG, Jianliang PEI, Yu BIAN, Huining XU, Yong XIANG, Fei WU, Hang ZOU, Yangmengdi XU