Patents by Inventor Cheong Yip Chan

Cheong Yip Chan 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).

  • Control stick
    Patent number: 11112817
    Abstract: A control stick includes a control portion, a first electrical contact portion and a second electrical contact portion. The control portion has plural first moving contact points, the first electrical contact portion has a control board and plural first static contact points corresponding to the first moving contact points respectively, and a gap exists between the first moving contact point and the respective first static contact point. The first static contact points are electrically connected with the control board. When the control portion swings towards one of the first moving contact points, the first moving contact point is contacted and conducted with the first static contact point. This control stick is capable of achieving the control of a multiple of variables to meet the requirements of controlling a multiple variable in some occasions.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: September 7, 2021
    Assignees: Defond Electech Co., Ltd., Defond Components Limited
    Inventors: Ka Him Leung, Cheng Chen Nieh, Cheong Yip Chan
  • Control Stick
    Publication number: 20200379502
    Abstract: A control stick includes a control portion, a first electrical contact portion and a second electrical contact portion. The control portion has plural first moving contact points, the first electrical contact portion has a control board and plural first static contact points corresponding to the first moving contact points respectively, and a gap exists between the first moving contact point and the respective first static contact point. The first static contact points are electrically connected with the control board. When the control portion swings towards one of the first moving contact points, the first moving contact point is contacted and conducted with the first static contact point. This control stick is capable of achieving the control of a multiple of variables to meet the requirements of controlling a multiple variable in some occasions.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Inventors: Ka Him Leung, Cheng Chen Nieh, Cheong Yip Chan