Patents by Inventor Chengchao ZHANG

Chengchao ZHANG 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: 11832588
    Abstract: A pet hair removal comb includes a comb head with a knife holder assembly, a handle assembly and a hair removal push plate. The comb head is mounted at a front end of the handle assembly; the hair removal push plate is mounted on the comb head and located at a back side of the knife holder assembly; the handle assembly is provided thereon with a button assembly; the hair removal push plate includes a push plate that is movable in up and down directions and a push part at a front end of the push plate; a connecting rod is provided between the button assembly and a back surface of the push plate; two ends of the connecting rod are respectively movably connected with the button assembly and the push plate; the button assembly slides to push, through the connecting rod, the push plate to move.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: December 5, 2023
    Assignee: NINGBO HONGDU MODEL PLASTICS CO., LTD.
    Inventors: Zhongjie Pan, Jinchun Zhang, Chengchao Zhang
  • Patent number: 11613919
    Abstract: A locking apparatus for a pet cage is disclosed. The locking apparatus comprises a turntable rotatable about a central axis of rotation; at least one elongate metal lock bar, where elongate metal lock bar is configured to extend along a radial line originating from the axis of rotation of the turntable and a connecting member for operably connecting the elongate metal lock bar and the turntable. The connecting member comprises a forwardly extending portion for receiving a front section of the elongate metal lock bar and fixing a retained end of the elongate metal lock bar to the connecting member and a rearward extending portion which extends parallel with and is outwardly offset from the forwardly extending portion.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 28, 2023
    Assignee: NINGBO HONGDU MODEL PLASTICS CO., LTD.
    Inventors: Jinchun Zhang, Xudong Gong, Chengchao Zhang
  • Publication number: 20220386565
    Abstract: A pet hair removal comb includes a comb head with a knife holder assembly, a handle assembly and a hair removal push plate. The comb head is mounted at a front end of the handle assembly; the hair removal push plate is mounted on the comb head and located at a back side of the knife holder assembly; the handle assembly is provided thereon with a button assembly; the hair removal push plate includes a push plate that is movable in up and down directions and a push part at a front end of the push plate; a connecting rod is provided between the button assembly and a back surface of the push plate; two ends of the connecting rod are respectively movably connected with the button assembly and the push plate; the button assembly slides to push, through the connecting rod, the push plate to move.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 8, 2022
    Applicant: Ningbo Hongdu Model Plastics Co., Ltd.
    Inventors: Zhongjie PAN, Jinchun ZHANG, Chengchao ZHANG
  • Publication number: 20200165847
    Abstract: A locking apparatus for a pet cage is disclosed. The locking apparatus comprises a turntable rotatable about a central axis of rotation; at least one elongate metal lock bar, where elongate metal lock bar is configured to extend along a radial line originating from the axis of rotation of the turntable and a connecting member for operably connecting the elongate metal lock bar and the turntable. The connecting member comprises a forwardly extending portion for receiving a front section of the elongate metal lock bar and fixing a retained end of the elongate metal lock bar to the connecting member and a rearward extending portion which extends parallel with and is outwardly offset from the forwardly extending portion.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 28, 2020
    Inventors: Jinchun ZHANG, Xudong GONG, Chengchao ZHANG