Patents by Inventor Shang-Mau TSAI

Shang-Mau TSAI 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).

  • FAN, MOTOR AND BEARING STRUCTURE THEREOF
    Publication number: 20080298983
    Abstract: A fan includes an impeller and a motor. The motor includes a rotor structure and a bearing structure. The motor is used to drive the impeller and the rotor structure has a shaft. The shaft is connected to the impeller. The bearing structure includes an oil-retaining bearing, a base and a sleeve. The oil-retaining bearing is used to dispose the shaft and the base is used to support the oil-retaining bearing. The sleeve includes at least one resisting part and a circular sidewall. The circular sidewall is covered the outside of the oil-retaining bearing. The resisting part is disposed on the top surface of the circular sidewall and extended to the center of the oil-retaining bearing.
    Type: Application
    Filed: February 28, 2008
    Publication date: December 4, 2008
    Inventors: Shang-Mau TSAI, Kuo-Tung Hsu