Patents by Inventor Yangqing GAO

Yangqing GAO 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: 11002263
    Abstract: A two-stage high-pressure pump includes a reduction gearbox disposed in front of a motor, a-crank shaft connected to an output shaft of the reduction gearbox, a connecting rod having one side connected to the crank shaft and the other side connected to a primary piston, a primary one-way valve disposed at one end of the primary piston, and a gas storage chamber provided at the middle of the primary piston. The other end of the primary piston is connected to a secondary piston rod in a highly sealed manner. The secondary piston rod is provided with a vent in the middle, and the other end of the secondary piston is connected to a high-pressure piston. A secondary one-way valve is disposed in the secondary high-pressure piston. A noise attenuating filter and a one-way valve block are disposed at an air inlet of the primary cylinder cover.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 11, 2021
    Assignee: NANTONG GUANGXING PNEUMATIC EQUIPMENT CO., LTD.
    Inventors: Xuefeng Gao, Jinhai Chen, Mingming Su, Yanfei Dai, Yangqing Gao
  • Publication number: 20190390668
    Abstract: A two-stage high-pressure pump includes a reduction gearbox disposed in front of a motor, a-crank shaft connected to an output shaft of the reduction gearbox, a connecting rod having one side connected to the crank shaft and the other side connected to a primary piston, a primary one-way valve disposed at one end of the primary piston, and a gas storage chamber provided at the middle of the primary piston. The other end of the primary piston is connected to a secondary piston rod in a highly sealed manner. The secondary piston rod is provided with a vent in the middle, and the other end of the secondary piston is connected to a high-pressure piston. A secondary one-way valve is disposed in the secondary high-pressure piston. A noise attenuating filter and a one-way valve block are disposed at an air inlet of the primary cylinder cover.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 26, 2019
    Applicant: NANTONG GUANGXING PNEUMATIC EQUIPMENT CO., LTD.
    Inventors: Xuefeng GAO, Jinhai CHEN, Mingming SU, Yanfei DAI, Yangqing GAO