Patents by Inventor Jiefeng Liu

Jiefeng 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).

  • Multi-conical cyclone separator and dust collecting apparatus including the same
    Patent number: 11325137
    Abstract: The invention discloses a conical cyclone separator and a dust collecting apparatus including the same. The multi-conical cyclone separator includes a multi-conical main body and a fitting multi-conical cover body, the multi-conical main body has conical tubes, the multi-conical cover body has diversion columns which correspond to the conical tubes one by one, the diversion column is inserted into the corresponding conical tube to form a casing structure, the side of each conical tube of the multi-conical main body is provided with an air inlet and a compensation tuyere for compensating an inlet air flow rate to reduce a negative pressure in the conical tube and improve a dust-gas separation effect.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: May 10, 2022
    Assignee: AIRPLOVE (XIAMEN) ELECTRONIC CO., LTD.
    Inventors: Jueyuan Chen, Jiefeng Liu
  • MULTI-CONICAL CYCLONE SEPARATOR AND DUST COLLECTING APPARATUS INCLUDING THE SAME
    Publication number: 20210299681
    Abstract: The invention discloses a conical cyclone separator and a dust collecting apparatus including the same. The multi-conical cyclone separator includes a multi-conical main body and a fitting multi-conical cover body, the multi-conical main body has conical tubes, the multi-conical cover body has diversion columns which correspond to the conical tubes one by one, the diversion column is inserted into the corresponding conical tube to form a casing structure, the side of each conical tube of the multi-conical main body is provided with an air inlet and a compensation tuyere for compensating an inlet air flow rate to reduce a negative pressure in the conical tube and improve a dust-gas separation effect.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 30, 2021
    Inventors: Jueyuan Chen, Jiefeng Liu
  • Pet bowl with weighing scale
    Patent number: D987207
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 23, 2023
    Assignee: Beijing Kitten & Puppy Technology Co., Ltd.
    Inventors: Jin Wu, Jiefeng Liu, Lianhong Niu
  • Pet food barrel
    Patent number: D1026344
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 7, 2024
    Assignee: Beijing Kitten & Puppy Technology Co., Ltd.
    Inventors: Jin Wu, Jiefeng Liu, Lianhong Niu
  • Cat litter box
    Patent number: D1054637
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: December 17, 2024
    Assignee: Beijing Kitten & Puppy Technology Co., Ltd
    Inventors: Jiefeng Liu, Jin Wu