Patents by Inventor Tzyy D. Shieh

Tzyy D. Shieh 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: 5373874
    Abstract: In a fluid vending machine, a pivoting dispensing assembly comprises a housing having the form of a cylindrical sector, and a conformingly shaped platform rotatingly secured therein having a sectorial base plate and rectangular inner and outer sides. A spring disposed between the base plate of the platform and a bottom plate of the housing urges the platform towards a closed position therein. A user supplied container disposed on the base plate is filled with fluid dispensed through an aperture on a top plate of the housing. A switch on the housing in contact with the inner side of the platform when in the closed position shuts off the egress of fluid into the container should the user draw out the platform during a dispense cycle.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: December 20, 1994
    Inventor: Tzyy D. Shieh
  • Patent number: 4601263
    Abstract: A boiled water supplying apparatus which includes: a water heating closed tank having a water inlet and a water outlet; a conduit having one open end thereof connected to the water outlet and the other open end thereof arranged at a level higher than the water outlet; a water level regulating means for maintaining the water level in the water heating tank at a level lower than that of the other open end of the conduit; and a heating unit provided in the water heating tank for boiling the water; whereby the water can only be forced to flow out of the water heating tank by the vapor pressure of the boiling water. Downstream from the tank are provided a filter means, a hot water receiving tank and a heat exchange unit which can preheat the ingoing cold water of the water heating tank with the boiled water.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: July 22, 1986
    Inventor: Tzyy D. Shieh