Patents by Inventor Chimeng Song

Chimeng Song 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).

  • Negative pressure sanitary installation equipped with a purifier of gaseous fluids
    Patent number: 5234483
    Abstract: A negative pressure installation for treating charged fluids, comprising at least one pipe (2) conveying said charged fluids, a tank (4) for holding the solid and liquid matter, a conduit (5) for evacuation of the gases from the tank (4) to a purifier (6) connected on the one hand to the exterior air by a tube (7) and on the other hand to the pipe (2) by a recycling pipe (10).Application in sanitary installations of aircraft.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: August 10, 1993
    Inventors: Dominique Tertre, Chimeng Song