Patents by Inventor William Harold Smith

William Harold Smith 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).

  • Gas dilution device
    Patent number: 4036253
    Abstract: A gas dilution device includes a nozzle in fluid communication with selected first and second orifices disposed to direct a selected plurality of streams of a first gas at a plurality of velocities into a gas dilution chamber which is in fluid communication with a settable second gas receiving port through which an ambient second gas is drawn by the streams into the dilution chamber for diluting the first gas in a predetermined range of dilution ratios.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: July 19, 1977
    Assignee: Peace Medical
    Inventors: Frank Joseph Fegan, William Harold Smith