Patents by Inventor Yujian DUAN

Yujian DUAN 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).

  • Reversing Valve
    Publication number: 20240125403
    Abstract: Provided is a reversing valve. The reversing valve includes: a main valve; a supporting frame having a first connecting end and a second connecting end, wherein the first connecting end is connected with the main valve, and an end wall of the first connecting end is attached to a side wall of the main valve; and a supporting structure located between a side wall of the first connecting end and the side wall of the main valve. Strength of connection between the main valve and the supporting frame of the reversing valve is high, thereby achieving safety and reliability.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 18, 2024
    Inventors: Yujian DUAN, Haibo LIU, Yukuan SHAN