Patents by Inventor Qijun Lv

Qijun Lv 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).

  • Spray device and spray system
    Patent number: 11618044
    Abstract: A spray device includes a converging assembly, a container and a suction pipe. The converging assembly includes a first liquid channel, a second liquid channel, a first air channel and a second air channel. The first liquid channel and the first air channel communicate with an inlet of the second liquid channel. The second air channel communicates with the container. An end of the suction pipe communicates with the inlet of the second liquid channel, and another end is submerged in a solution in the container. When a liquid flows from the first liquid channel to the second liquid channel, air in the first liquid channel is discharged via the first air channel, the solution is sucked to the second liquid channel through the suction pipe, the solution and the liquid are mixed at the inlet of the second liquid channel, and then are sprayed from the second liquid channel.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: April 4, 2023
    Inventor: Qijun Lv
  • SPRAY DEVICE AND SPRAY SYSTEM
    Publication number: 20220193705
    Abstract: A spray device includes a converging assembly, a container and a suction pipe. The converging assembly includes a first liquid channel, a second liquid channel, a first air channel and a second air channel. The first liquid channel and the first air channel communicate with an inlet of the second liquid channel. The second air channel communicates with the container. An end of the suction pipe communicates with the inlet of the second liquid channel, and another end is submerged in a solution in the container. When a liquid flows from the first liquid channel to the second liquid channel, air in the first liquid channel is discharged via the first air channel, the solution is sucked to the second liquid channel through the suction pipe, the solution and the liquid are mixed at the inlet of the second liquid channel, and then are sprayed from the second liquid channel.
    Type: Application
    Filed: February 24, 2021
    Publication date: June 23, 2022
    Inventor: Qijun Lv
  • Spray device
    Patent number: D956926
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: July 5, 2022
    Inventor: Qijun Lv