Patents by Inventor Da-Hsuan Chen

Da-Hsuan Chen 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: 5314365
    Abstract: An improved turntable structure for a moving wooden horse toy, which comprises a rotation structure mounted between a turntable and a base disk; the rotation structure includes a round niche under the turntable, and a music box assembly mounted in the round niche; the center of the music box is connected with the supporting shaft in the center of the bearing base on the base disk. Between the turntable and the base disk, there is a roller bearing assembly to provide a rotary connection between the turntable and the base disk; a vertical-driving mechanism is mounted between the edge portions of the turntable and the base disk; when the turntable is driven with the driving power of the music box, the vertical-moving rods mounted on the edge portion of the turntable will jump up and down simultaneously as a result of a repelling force between the upper magnets under the turntable and the lower magnets on the base disk.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: May 24, 1994
    Inventor: Da-Hsuan Chen