Patents by Inventor Stephen Chi

Stephen Chi 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: 5728051
    Abstract: A massager with rotary and resilient action includes a base, a movable cover, drive motor means, two worm gears and a massaging means. The worm gears and the massaging means consisting of multiple rows of massaging units are disposed intermediate the base and the movable cover. By means of the drive motor means which drive a belt pulley to rotate the worm gears, multiple screw pinions at the lower portion of the massaging units are driven. The screw pinions are insertably connected to multiple connecting heads so that the connecting heads may be rotated therewith. Each screw pinion has an upper side provided with four insert slots for receiving a plurality of pins on the lower side of each connecting head so that the position of a massaging head fitted on the connecting head may be adjusted to achieve inwardly and outwardly massaging actions.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 17, 1998
    Inventor: Stephen Chi