Patents by Inventor David Samuel Ensor

David Samuel Ensor 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).

  • Patent number: 10208331
    Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 19, 2019
    Assignee: Research Triangle Institute
    Inventors: David Samuel Ensor, Howard Jerome Walls, Karin K. Foarde
  • Patent number: 10188973
    Abstract: A filtration device including a base filtration material having openings for fluid flow there through and a filtration medium. The filtration medium includes a plurality of patterned nanofibers formed on the base filtration material. The filtration medium has a figure of merit greater than 30 kPa?1, where the figure of merit is given by ?Log (Pt)/?P, where Pt is the fractional penetration of a specific aerosol particle diameter and ?P is a pressure drop across the filtration medium corresponding to a face velocity of 5.3 cm/s and particle size of 0.3 microns.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: January 29, 2019
    Assignee: Research Triangle Institute
    Inventors: Anthony Clint Clayton, Howard Jerome Walls, Adam Joseph Rieth, David Samuel Ensor
  • Patent number: 10099165
    Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 16, 2018
    Assignee: Research Triangle Institute
    Inventors: Howard Jerome Walls, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor
  • Publication number: 20180245126
    Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: David Samuel Ensor, Howard Jerome Walls, Karin K. Foarde
  • Patent number: 9988664
    Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 5, 2018
    Assignee: Research Triangle Institute
    Inventors: David Samuel Ensor, Howard Jerome Walls, Karin K Foarde
  • Publication number: 20160243480
    Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.
    Type: Application
    Filed: December 21, 2015
    Publication date: August 25, 2016
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: Howard Jerome WALLS, Randall J. NEWSOME, Anthony Clint CLAYTON, Robert W. YAGA, David Samuel ENSOR
  • Publication number: 20160076073
    Abstract: A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: David Samuel ENSOR, Howard Jerome WALLS, Karin K. FOARDE
  • Publication number: 20150298036
    Abstract: A filtration device including a base filtration material having openings for fluid flow there through and a filtration medium. The filtration medium includes a plurality of patterned nanofibers formed on the base filtration material. The filtration medium has a figure of merit greater than 30 kPa?1, where the figure of merit is given by ?Log (Pt)/?P, where Pt is the fractional penetration of a specific aerosol particle diameter and ?P is a pressure drop across the filtration medium corresponding to a face velocity of 5.3 cm/s and particle size of 0.3 microns.
    Type: Application
    Filed: December 6, 2013
    Publication date: October 22, 2015
    Applicant: Research Triangle Institute
    Inventors: Anthony Clint CLAYTON, Howard Jerome WALLS, Adam Joseph RIETH, David Samuel ENSOR
  • Publication number: 20140250846
    Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 11, 2014
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: Howard Jerome WALLS, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor