Patents by Inventor Yiu K. Yu

Yiu K. Yu 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).

  • Tethered controlled flying toy
    Patent number: 5334070
    Abstract: The present invention relates to a tethered controlled flying toy that is attached to a control unit by a hollow tube and a clutch assembly. A rotating cable extends from a motor within the control unit through the clutch assembly and the hollow tube to the flying toy where it attaches to the propeller of the flying toy. The rotating cable is rotated by the motor that in turn causes the propeller of the flying toy to rotate and the flying toy to become airborne. The present invention can be used in confined spaces and simulates many the aerodynamics of true flight.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: August 2, 1994
    Assignee: Uni-King Toys Ltd.
    Inventors: Yiu K. Yu, Bryan K. F. Au