Patents by Inventor Rongqing Liu

Rongqing Liu 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: 12078248
    Abstract: A sealing member and a toilet flange assembly are disclosed. The sealing member is made of an elastic material, and includes an upper ring portion, a connecting ring portion and a lower ring portion that are connected in sequence from top to bottom. The upper ring portion is fitted on a flange member. Upper and lower ends of the connecting ring portion are connected to the upper ring portion and the lower ring portion, respectively. An inner wall of the connecting ring portion is connected with a toilet drain pipe. The lower ring portion has a diameter less than that of the upper ring portion. An outer wall of the lower ring portion is connected with a ground drain pipe. The toilet flange assembly can solve the problem of fitting between toilet drain pipes of different diameters and ground drain pipes.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: September 3, 2024
    Inventor: Rongqing Liu
  • Publication number: 20240035571
    Abstract: A sealing member and a toilet flange assembly are disclosed. The sealing member is made of an elastic material, and includes an upper ring portion, a connecting ring portion and a lower ring portion that are connected in sequence from top to bottom. The upper ring portion is fitted on a flange member. Upper and lower ends of the connecting ring portion are connected to the upper ring portion and the lower ring portion, respectively. An inner wall of the connecting ring portion is connected with a toilet drain pipe. The lower ring portion has a diameter less than that of the upper ring portion. An outer wall of the lower ring portion is connected with a ground drain pipe. The toilet flange assembly can solve the problem of fitting between toilet drain pipes of different diameters and ground drain pipes.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 1, 2024
    Inventor: Rongqing Liu