Patents by Inventor Zu C. Hsiao

Zu C. Hsiao 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).

  • Air-conditioner/refrigerator cooling water circulating system with underground heat dissipating and hot water recovery sub-system
    Patent number: 5152153
    Abstract: An air-conditioner/refrigerator water circulating system, comprising a water recovery pipe system to collect cooling water from a cooling water pipe system which circulates through the condensing pipes of a plurality of air-conditioners/refrigerators to carry heat therefrom, a water recovery tank to collect water recovered from said water recovery pipe system, a cooling coil embedded under the ground to cool down water from said water recovery tank, a supplementary water tank to receive water from said cooling coil, and a water raising device to automatically pump water from said supplementary water tank to said cooling water pipe system for repeated circulation.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: October 6, 1992
    Inventor: Zu C. Hsiao