Patents by Inventor Fajun ZHAO

Fajun ZHAO 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: 11262283
    Abstract: A partial pressure tool for real-time measurement and adjustment of pressure and viscosity and a measurement method thereof. The partial pressure tool includes an outer cylinder and adjustable annular throttling grooves, and the adjustable annular throttling grooves are split-type grooves vertically and successively installed on an inner wall of the outer cylinder at equal intervals. Four single throttling grooves are adjacent to each other and arranged concentrically on a circumferential surface. A viscometer is installed on a surface of an arc-shaped inner plate in a tail-end adjustable annular throttling groove. The viscometer is connected to an induction board through a transmission line. The arc-shaped inner plate in the tail-end adjustable annular throttling groove is provided with a pressure sensor and a torque sensor, and the pressure sensor and the torque sensor both are connected to the induction board. The induction board is connected to a DSP control module.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 1, 2022
    Assignee: CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Bin Huang, Cheng Fu, Xinyu Hu, Xiaohui Li, Fajun Zhao, Chunjing Lu, Weiwen Zhang, Xiangdong Qi
  • Publication number: 20210025799
    Abstract: A partial pressure tool for real-time measurement and adjustment of pressure and viscosity and a measurement method thereof. The partial pressure tool includes an outer cylinder and adjustable annular throttling grooves, and the adjustable annular throttling grooves are split-type grooves vertically and successively installed on an inner wall of the outer cylinder at equal intervals. Four single throttling grooves are adjacent to each other and arranged concentrically on a circumferential surface. A viscometer is installed on a surface of an arc-shaped inner plate in a tail-end adjustable annular throttling groove. The viscometer is connected to an induction board through a transmission line. The arc-shaped inner plate in the tail-end adjustable annular throttling groove is provided with a pressure sensor and a torque sensor, and the pressure sensor and the torque sensor both are connected to the induction board. The induction board is connected to a DSP control module.
    Type: Application
    Filed: May 29, 2020
    Publication date: January 28, 2021
    Inventors: Bin HUANG, Cheng FU, Xinyu HU, Xiaohui LI, Fajun ZHAO, Chunjing LU, Weiwen ZHANG, Xiangdong QI