Patents by Inventor Keyang LEI

Keyang LEI 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).

  • Pneumatic amplifier
    Patent number: 10955063
    Abstract: A pneumatic amplifier includes a valve body, a first comparison chamber, a third comparison chamber and a second comparison chamber. A first diaphragm and a second diaphragm are arranged in the first comparison chamber and fixed to the valve body. A mounting plate A is fixedly arranged between the first diaphragm and the second diaphragm. A seventh diaphragm, an eighth diaphragm, a ninth diaphragm and a tenth diaphragm are arranged in the second comparison chamber and fixedly arranged on the valve body. A mounting plate C is fixedly arranged among the seventh diaphragm, the eighth diaphragm, the ninth diaphragm and the tenth diaphragm. A third diaphragm, a fourth diaphragm, a fifth diaphragm and a sixth diaphragm are arranged in the third comparison chamber and fixed to the valve body. A mounting plate B is fixedly arranged among the third diaphragm, the fourth diaphragm, the fifth diaphragm and the sixth diaphragm.
    Type: Grant
    Filed: September 30, 2018
    Date of Patent: March 23, 2021
    Assignee: MERCURY INSTRUMENTS (CHENGDU) CORPORATION
    Inventors: Zhengchao Hu, Keyang Lei
  • PNEUMATIC AMPLIFIER
    Publication number: 20210025515
    Abstract: A pneumatic amplifier includes a valve body, a first comparison chamber, a third comparison chamber and a second comparison chamber. A first diaphragm and a second diaphragm are arranged in the first comparison chamber and fixed to the valve body. A mounting plate A is fixedly arranged between the first diaphragm and the second diaphragm. A seventh diaphragm, an eighth diaphragm, a ninth diaphragm and a tenth diaphragm are arranged in the second comparison chamber and fixedly arranged on the valve body. A mounting plate C is fixedly arranged among the seventh diaphragm, the eighth diaphragm, the ninth diaphragm and the tenth diaphragm. A third diaphragm, a fourth diaphragm, a fifth diaphragm and a sixth diaphragm are arranged in the third comparison chamber and fixed to the valve body. A mounting plate B is fixedly arranged among the third diaphragm, the fourth diaphragm, the fifth diaphragm and the sixth diaphragm.
    Type: Application
    Filed: September 30, 2018
    Publication date: January 28, 2021
    Applicant: MERCURY INSTRUMENTS (CHENGDU) CORPORATION
    Inventors: Zhengchao HU, Keyang LEI