Patents by Inventor Yunnan Wei

Yunnan Wei 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: 11668406
    Abstract: A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 6, 2023
    Assignee: NINGBO WANAN CO., LTD.
    Inventors: Feng Zhang, Yunnan Wei, Yanhua Wang, Jinghui Fan
  • Publication number: 20220316613
    Abstract: A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 6, 2022
    Applicant: NINGBO WANAN CO. , LTD.
    Inventors: Feng ZHANG, Yunnan WEI, Yanhua WANG, Jinghui FAN
  • Patent number: 11415236
    Abstract: A gas pressure regulating device is provided which comprises an upper housing and a lower housing, a pressure regulation cavity is disposed between the upper housing and the lower housing, a diaphragm assembly is disposed in the pressure regulation cavity, a gas inlet and a valve port for communicating the gas inlet with the pressure regulation cavity are disposed at one end of the lower housing. The gas pressure regulating device provided in the present invention has a simpler structure and fewer parts and is capable of effectively lowering the risks of dangerous accidents such as product leakage resulting from part failure, thus effectively ensuring stable pressure regulation performance.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 16, 2022
    Inventors: Feng Zhang, Yunnan Wei, Yanhua Wang, Hongbin Ren
  • Patent number: 11385661
    Abstract: A gas pressure regulating device is provided which comprises a housing, in which a first mounting cavity for installing a level-1 depressurization mechanism and a second mounting cavity for installing a level-2 depressurization mechanism are provided in sequence along the air intake direction; the level-1 depressurization mechanism comprises a sliding sleeve, and a mounting tubing which is communicated with the gas inlet is formed inside the first mounting cavity, and the sliding sleeve is slidably assembled between an outer wall of the mounting tubing and an inner wall of the first mounting cavity; the other end of the sliding sleeve is provided with a gas discharge orifice and a sealing gasket, and the gas inlet connector is in communication with the first mounting cavity through the gas discharge orifice; the sliding sleeve slides along the axial direction to adjust the openness of the gas outlet to realize the level-1 depressurization.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: July 12, 2022
    Inventors: Feng Zhang, Yunnan Wei, Jinghui Fan, Minxiao Dai