Patents by Inventor Douglas A. Orsini

Douglas A. Orsini 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).

  • Apparatus for rapid measurement of aerosol bulk chemical composition
    Patent number: 7029921
    Abstract: An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection device which collects the activated aerosol particles into a liquid stream for quantitative analysis by analytical means. Methods for on-line measurement of chemical composition of aerosol particles are also provided, the method including exposing aerosol carrying sample air to hot saturated steam thereby forming activated aerosol particles; collecting the activated aerosol particles by a collection device for delivery as a jet stream onto an impaction surface; and flushing off the activated aerosol particles from the impaction surface into a liquid stream for delivery of the collected liquid stream to an analytical instrument for quantitative measurement.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: April 18, 2006
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Yin-Nan E. Lee, Rodney J. Weber, Douglas Orsini
  • Apparatus for rapid measurement of aerosol bulk chemical composition
    Publication number: 20030082825
    Abstract: An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection device which collects the activated aerosol particles into a liquid stream for quantitative analysis by analytical means. Methods for on-line measurement of chemical composition of aerosol particles are also provided, the method including exposing aerosol carrying sample air to hot saturated steam thereby forming activated aerosol particles; collecting the activated aerosol particles by a collection device for delivery as a jet stream onto an impaction surface; and flushing off the activated aerosol particles from the impaction surface into a liquid stream for delivery of the collected liquid stream to an analytical instrument for quantitative measurement.
    Type: Application
    Filed: October 24, 2002
    Publication date: May 1, 2003
    Inventors: Yin-Nan E. Lee, Rodney J. Weber, Douglas A. Orsini