Patents by Inventor George J. Newton

George J. Newton 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).

  • Virtual impactor
    Patent number: 4767524
    Abstract: A virtual impactor having improved efficiency and low wall losses in which a core of clean air is inserted into the aerosol flow while aerosol flow is maintained adjacent inner wall surfaces of the focusing portion of the impactor. The flow rate of the core and the length of the throat of the impactor's collection probe, as well as the dimensional relationships of other components of the impactor adjacent the separation region of the impactor, are selected to optimize separation efficiency.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: August 30, 1988
    Assignee: Lovelace Medical Foundation
    Inventors: Hsu-Chi Yeh, Bean T. Chen, Yung-Sung Cheng, George J. Newton