Patents by Inventor Hsu Ming Tay

Hsu Ming Tay 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: 5738011
    Abstract: Disclosed is an amusement stamp for children which includes a light-pervious ornament removably but tightly fitted on an ornament seat, an outer ring member, a retractable stamp seat having a design-bearing lower head and being supported in the outer ring member, a spring disposed in the outer ring member around the stamp seat, and a bottom cover for protectively closing the design-bearing lower head of the retractable stamp in a bottom opening of the outer ring member. The ornament seat is connected to a top edge of the outer ring member and compresses the spring between it and the retractable stamp seat. A small bulb is mounted on a top of the ornament seat and can be turned on or off via a pushbutton sideward projected from a side wall of the ornament seat. When a child uses the amusement stamp to imprint a pattern on something, the design-bearing lower head of the retractable stamp seat is pushed upward and depresses the pushbutton to lighten the small bulb, creating more funs for the stamp.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: April 14, 1998
    Inventor: Hsu Ming Tay