Patents by Inventor Zuming Zheng

Zuming Zheng 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).

  • Combined packing-tray in a vapor-liquid contacting tower and a process for effecting operation with high capacity and high turndown ratio
    Patent number: 6345811
    Abstract: A vapor-liquid contacting tower having a tray deck, at least one downcomer and a structure packing layer in the space under the vapor-liquid bubble contacting tray wherein the tray deck has an opening such that vapor ascends upward through the opening to come into contact with the liquid flowing across the tray deck to form a froth in which the vapor and the liquid on the tray deck creates cross-flow bubble contact and with the structural dimensions of the tray deck and downcomer providing for at least 90 vol % of the total liquid flowing across the tray deck flows downwardly through the downcomer to the adjacent deck.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: February 12, 2002
    Assignees: China Petro-Chemical Corporation, Zhejiang University of Technology
    Inventors: Xiaomei Yu, Jun Tian, Jiazhong Zhu, Ou Li, Zuming Zheng, Kejian Yao
  • Retangular suspending downcomer directing tray
    Patent number: 6299146
    Abstract: The vapor-liquid contacting tower contains multiple trays having multiple openings and multiple rectangular downcomers with multiple bottom openings. At least a pair of directing slots and at least a pair of directing baffles are installed in the liquid receiving zone of the tray and under the bottom openings of a downcomer of the adjacent overlying tray.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: October 9, 2001
    Assignees: China Petro-Chemical Corp., Zhenjiang University of Tech.
    Inventors: Xiaomei Yu, Chongsi Xu, Jingzhong Zhu, Ou Li, Zuming Zheng, Kejian Yao, Jun Tian