Patents by Inventor Zhengyou Feng

Zhengyou Feng 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).

  • Ring rack oil pumping machine
    Patent number: 8047821
    Abstract: The Ring Rack Oil Pumping Machine is comprised of: a base, a frame mounted on the base, a roller mounted at the frame top, a sprocket case connects to the middle of the frame; a input shaft having a lower sprocket and a drive shaft having an upper sprocket are installed at the bottom and top of the sprocket case respectively, the upper sprocket and lower sprocket are connected by a chain; a guide wheel, track gear and centralizer wheel are mounted in sequence on the end of the drive shaft extended out of the sprocket case; the track gear meshes with a rack, a slide rail is mounted with the frame, and a sliding base (21) connected with the slide rail (20) moveably. Comparing to currently using pumping units, this invention features simple structure, high safety and reliability, upgraded efficiency, easy maintenance, smooth running and high durability.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: November 1, 2011
    Assignee: Sinopec Group, Shengli Petroleum Administration Transport Corporation
    Inventors: Xinyi Gu, Huanbo Zhou, Yonghai Liu, Zhisheng Tian, Zhengyou Feng
  • Ring Rack Oil Pumping Machine
    Publication number: 20090266186
    Abstract: The Ring Rack Oil Pumping Machine is comprised of: a base, a frame mounted on the base, a roller mounted at the frame top, a sprocket case connects to the middle of the frame; a input shaft having a lower sprocket and a drive shaft having an upper sprocket are installed at the bottom and top of the sprocket case respectively, the upper sprocket and lower sprocket are connected by a chain; a guide wheel, track gear and centralizer wheel are mounted in sequence on the end of the drive shaft extended out of the sprocket case; the track gear meshes with a rack, a slide rail is mounted with the frame, and a sliding base (21) connected with the slide rail (20) moveably. Comparing to currently using pumping units, this invention features simple structure, high safety and reliability, upgraded efficiency, easy maintenance, smooth running and high durability.
    Type: Application
    Filed: November 13, 2007
    Publication date: October 29, 2009
    Applicant: Sinopec Group, Shengli Petroleum Administration Transport Corporation
    Inventors: Xinyi Gu, Huanbo Zhou, Yonghai Liu, Zhisheng Tian, Zhengyou Feng