Patents by Inventor Menglei WEI

Menglei WEI 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).

  • Pressure compensation device with accumulator group for controlled pressure drilling
    Patent number: 12000222
    Abstract: A pressure compensation device with an accumulator group for controlled pressure drilling includes an electrical flat valve, a check valve, an accumulator group, a flanged pup joint and a support base. The electrical flat valve is connected to the check valve and is mounted on a top surface of the support base. The accumulator group mounted on the whole support base is a pre-storage pressure compensation device for controlled pressure drilling, and is located at a downstream position of the check valve. The liquid inlet end of the accumulator group is connected to the check valve, and the liquid discharge end is connected to the flanged pup joint.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: June 4, 2024
    Assignees: CNPC BOHAI DRILING ENGINEERING COMPANY LIMITED, CHINA NATIONAL PETROLEUM CORPORATION, CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Jinshan Ma, Baojiang Sun, Jintao Qi, Liming Wei, Fengliang Xi, Gang Liu, Zhiyuan Wang, Xing Wang, Haichao Xu, Long Ma, Jiacui Luan, Lei Chen, Guodong Chen, Yuanlin Zhao, Zisen Yang, Qiang Huang, Menglei Ma, Xiantao Meng, Hongyin Wei
  • Method for conveying and dropping seedlings based on device for conveying and positioning seedling tray of automatic transplanter
    Patent number: 11980119
    Abstract: A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter, wherein the device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: May 14, 2024
    Assignee: JIANGSU UNIVERSITY
    Inventors: Jianping Hu, Mengjiao Yao, Shulin Liu, Jinhao Zhou, Chensheng Ren, Menglei Wei, Tengfei Zhang, Jiawei Shi
  • METHOD FOR CONVEYING AND DROPPING SEEDLINGS BASED ON DEVICE FOR CONVEYING AND POSITIONING SEEDLING TRAY OF AUTOMATIC TRANSPLANTER
    Publication number: 20240016080
    Abstract: A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter is provided. The device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.
    Type: Application
    Filed: January 11, 2022
    Publication date: January 18, 2024
    Applicant: JIANGSU UNIVERSITY
    Inventors: Jianping HU, Mengjiao YAO, Shulin LIU, Jinhao ZHOU, Chensheng REN, Menglei WEI, Tengfei ZHANG, Jiawei SHI