Patents by Inventor Weijun Lv

Weijun Lv 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).

  • Measuring device for measuring consistency of cement slurry for a consistometer
    Patent number: 8820145
    Abstract: This present invention relates to a measuring device for measuring consistency of cement slurry for a consistometer. The measuring device comprises a high-pressure vessel, a slurry cup and a magnetic driver, wherein the slurry cup is rotatably mounted inside the high-pressure vessel by the magnetic driver, stir blades are hanged in the slurry cup, and the magnetic driver is driven by a driving motor which is located outside the high-pressure vessel and is further provided with a tension sensor. The invention cancels the conventional mode for measuring consistency by a potentiometer, uses the tension sensor to measure the torque transferred from the driving motor to the magnetic driver, i.e. the cutting torque created by the stir blades on cement slurries within the slurry cup, thereby measuring the consistency of cement slurry.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 2, 2014
    Assignees: China Oilfield Services Limited, Shenyang Jinouke Petroleum Instrument Technology Development Co., Ltd
    Inventors: Yuwei Luo, Yutian Wang, Zhenyu Yang, Shiwen Yu, Weijun Lv, Qingshun Wang, Weihan Ling, Zhenlun Li, Bin Han
  • MEASURING DEVICE FOR MEASURING CONSISTENCY OF CEMENT SLURRY FOR A CONSISTOMETER
    Publication number: 20120024046
    Abstract: This present invention relates to a measuring device for measuring consistency of cement slurry for a consistometer. The measuring device comprises a high-pressure vessel, a slurry cup and a magnetic driver, wherein the slurry cup is rotatably mounted inside the high-pressure vessel by the magnetic driver, stir blades are hanged in the slurry cup, and the magnetic driver is driven by a driving motor which is located outside the high-pressure vessel and is further provided with a tension sensor. The invention cancels the conventional mode for measuring consistency by a potentiometer, uses the tension sensor to measure the torque transferred from the driving motor to the magnetic driver, i.e. the cutting torque created by the stir blades on cement slurries within the slurry cup, thereby measuring the consistency of cement slurry.
    Type: Application
    Filed: June 21, 2011
    Publication date: February 2, 2012
    Inventors: Yuwei Luo, Yutian Wang, Zhenyu Yang, Shiwen Yu, Weijun Lv, Qingshun Wang, Weihan Ling, Zhenlun Li, Bin Han