Patents by Inventor Sylvester T. Yu

Sylvester T. Yu 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).

  • Temperature and barometric responsive fan system
    Publication number: 20030173830
    Abstract: A management system and method are provided to adjust fans used for cooling equipment. The system includes one or more electric fans. The operational speed of the fan(s) is adjusted as the environmental parameters change. For example, the fan speed is increased as the temperature and elevation increase. In addition, fan failure circuitry provides a safe operation feature that increases fan supply voltage when a performance failure is detected.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 18, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Christopher S. Smith, Sylvester T. Yu, George Bertram Dodson