Patents by Inventor Chengtao Gu

Chengtao Gu 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).

  • Hot detachable and replaceable water filter assembly
    Patent number: 9056269
    Abstract: Disclosed is a hot detachable and replaceable water filter assembly, including a filter core cover and a filter cartridge; wherein the filter cover and the filter cartridge are fastened together. The filter cover includes an upper ceramic piece, a lower ceramic piece and a rotating shaft. The contact surface between the upper ceramic piece and lower ceramic piece is smooth. The upper ceramic piece includes a first through hole. The lower ceramic piece includes a corresponding second through hole. The lower ceramic piece includes a first groove. The rotating shaft includes a first projection to drive the lower ceramic piece to rotate. The filter cartridge includes a water division end cap which is cooperated with the rotating shaft.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: June 16, 2015
    Assignee: Ningbo Hidrotek Co., Ltd.
    Inventors: Chengtao Gu, Shugang Cai, Xiaoming Hu
  • Hot Detachable and Replaceable Water Filter Assembly
    Publication number: 20130220910
    Abstract: Disclosed is a hot detachable and replaceable water filter assembly, including a filter core cover and a filter cartridge; wherein the filter cover and the filter cartridge are fastened together. The filter cover includes an upper ceramic piece, a lower ceramic piece and a rotating shaft. The contact surface between the upper ceramic piece and lower ceramic piece is smooth. The upper ceramic piece includes a first through hole. The lower ceramic piece includes a corresponding second through hole. The lower ceramic piece includes a first groove. The rotating shaft includes a first projection to drive the lower ceramic piece to rotate. The filter cartridge includes a water division end cap which is cooperated with the rotating shaft.
    Type: Application
    Filed: March 19, 2012
    Publication date: August 29, 2013
    Applicant: NINGBO HIDROTEK CO., LTD.
    Inventors: Chengtao Gu, Shugang Cai, Xiaoming Hu