Patents by Inventor Zhengfu Cai

Zhengfu Cai 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).

  • Bladeless fan with multiple air ducts
    Patent number: 11629727
    Abstract: A bladeless fan with multiple air ducts is disclosed. The bladeless fan has a fan housing, a control system arranged in the fan housing, a blower system connected with the control system, an intermediate air duct communicating with the blower system and a rotation component connected with the control system. The intermediate air duct is provided with a side air duct at its both sides, the rotation component is connected with the side air duct to drive the side air duct to fold and unfold with the intermediate air duct as a center shaft. The side air duct is driven by the rotation component to fold and unfold with the intermediate air duct as a center shaft. The fold and unfold of the side air duct can achieve different effects, satisfy the user's requirement and improve the user experience.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: April 18, 2023
    Assignee: AIRMATE ELECTRICAL (JIU JIANG) CO., LTD
    Inventor: Zhengfu Cai
  • BLADELESS FAN WITH MULTIPLE AIR DUCTS
    Publication number: 20220145901
    Abstract: A bladeless fan with multiple air ducts is disclosed. The bladeless fan has a fan housing, a control system arranged in the fan housing, a blower system connected with the control system, an intermediate air duct communicating with the blower system and a rotation component connected with the control system. The intermediate air duct is provided with a side air duct at its both sides, the rotation component is connected with the side air duct to drive the side air duct to fold and unfold with the intermediate air duct as a center shaft. The side air duct is driven by the rotation component to fold and unfold with the intermediate air duct as a center shaft. The fold and unfold of the side air duct can achieve different effects, satisfy the user's requirement and improve the user experience.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 12, 2022
    Inventor: Zhengfu Cai