Patents by Inventor Charles Poulin

Charles Poulin 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).

  • Atomizing nozzle for fine spray and misting applications
    Patent number: 6899289
    Abstract: The invention relates to a nozzle (10) for mixing a gaseous fluid such as air and a liquid such as water and for ejecting an atomized mist of liquid droplets. The nozzle includes a nozzle body defining first (60), second (44) and third (52) annular passages along the length thereof. Pressurized fluid is introduced into the first annular passage (60) and a first restricted annular orifice (68) leads from the first annular passage (60) to the third annular passage (52). Liquid is introduced into the second annular passage (44) and a second restricted annular orifice (48) leads from the second annular passage (44) to the third annular passage (52). Liquid and gaseous fluid are aggressively mixed in the third annular passage (52).
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: May 31, 2005
    Assignee: National Research Council of Canada
    Inventors: Thomas W. McCracken, Adam J. Bennett, Ronald J. R. Dignard, Charles Poulin
  • Atomizing nozzle for fine spray and misting applications
    Publication number: 20030080212
    Abstract: The invention relates to a nozzle (10) for mixing a gaseous fluid such as air and a liquid such as water and for ejecting an atomize mist of liquid droplets. The nozzle includes a nozzle body defining first (60), second (44) and third (52) annular passages along the length thereof. Pressurized fluid is introduced into the first annular passage (60) and a first restricted annular orifice (68) leads from the first annular passage (60) to the third annular passage (52). Liquid is introduced into the second annular passage (44) and a second restricted annular orifice (48) leads from the second annular passage (44) to the third annular passage (52). Liquid and gaseous fluid are aggressively mixed in the third annular passage (52).
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Thomas W. McCracken, Adam J. Bennett, Donald J.R. Dignard, Charles Poulin