Patents by Inventor Stanley C. Yu

Stanley C. 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).

  • Enhanced capabilities of smoke detectors
    Patent number: 5625346
    Abstract: A smoke detector unit with a fan that creates an airstream which flows through a smoke detector. Both the fan and the smoke detector are located within a housing that is mounted to the fuselage of an airplane. The smoke detector generates an output signal that is provided to an indicator when a threshold level of smoke is detected. The output signal is typically latched by a relay that is also located within the housing.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: April 29, 1997
    Assignee: McDonnell Douglas Corporation
    Inventors: Hyo Shim, Sham S. Hariram, Wai-Pak Wong, Ronald Blumke, Stanley C. Yu