Patents by Inventor Zhiju Ma

Zhiju Ma 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).

  • Apparatus for detecting air tightness
    Patent number: 11598690
    Abstract: Embodiments of the present application disclose an apparatus for detecting air tightness. The apparatus has an air inlet end, an inflating end for an object to be tested inflating end and a standard part inflating end. The apparatus includes a pressure regulating component, a first bypass isolating valve, a second bypass isolating valve, a third bypass isolating valve, a first high air pressure sensor, a second high air pressure sensor, a low air pressure sensor, and a differential pressure sensor. By adopting the technical solutions according to the embodiments of the present application, a low air pressure sensor can be embedded in an air tightness detector suitable for tests under high pressure and the low air pressure sensor can be effectively protected in a high pressure environment, so that leakage tests under different inflation pressures can be implemented by one instrument.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: March 7, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Linjun Huang, Darning Zhou, Zhiju Ma, Gaoning Chen
  • APPARATUS FOR DETECTING AIR TIGHTNESS
    Publication number: 20210116324
    Abstract: Embodiments of the present application disclose an apparatus for detecting air tightness. The apparatus has an air inlet end, an inflating end for an object to be tested inflating end and a standard part inflating end. The apparatus includes a pressure regulating component, a first bypass isolating valve, a second bypass isolating valve, a third bypass isolating valve, a first high air pressure sensor, a second high air pressure sensor, a low air pressure sensor, and a differential pressure sensor. By adopting the technical solutions according to the embodiments of the present application, a low air pressure sensor can be embedded in an air tightness detector suitable for tests under high pressure and the low air pressure sensor can be effectively protected in a high pressure environment, so that leakage tests under different inflation pressures can be implemented by one instrument.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Linjun Huang, Daming Zhou, Zhiju Ma, Gaoning Chen