Patents by Inventor Sam Tun-Sheng Yang

Sam Tun-Sheng Yang 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).

  • Thermostat three-way control valve equipped with automatic air vent valve for air conditioning fan-coil unit
    Patent number: 6510999
    Abstract: A thermostat three-way control valve equipped with an automatic air vent valve for air conditioning fan-coil unit includes a thermostat three-way control valve located between a chilled water supply branch pipe and a chilled water return pipe of a fan-coil unit, and an automatic air vent valve located above the thermostat three-way control valve. The thermostat three-way control valve includes a driving motor which is located at one side of the thermostat three way control valve. The thermostat three-way control valve may be a three-way valve or a two-way valve. The automatic air vent valve can automatically vent air from the fan-coil unit such that no residual air is trapped in the cooling coil of the fan-coil unit thereby to maintain heat exchange efficiency of the fan-coil unit.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: January 28, 2003
    Inventor: Sam Tun-Sheng Yang