Patents by Inventor Chi-Sang Poon

Chi-Sang Poon 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).

  • Respirator triggering mechanism
    Patent number: 5050593
    Abstract: Mechanism for triggering the inspiratory phase of a respirator having a three-way connector with an inspiratory conduit and an expiratory conduit, each communicating with the respirator and with a patient communicating conduit. Valve mechanism associated with both the expiratory and inspiratory conduits are automatically operated by a patient attempting to breathe, such that he is only exposed to the air volume in the three-way connector and not to the greater air volume of the respirator and its connected tubing.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: September 24, 1991
    Assignee: Massachusetts Institute of Technology
    Inventor: Chi-Sang Poon