Patents by Inventor Randall J. Newsome
Randall J. Newsome 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).
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Patent number: 10099165Abstract: 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: GrantFiled: December 21, 2015Date of Patent: October 16, 2018Assignee: Research Triangle InstituteInventors: Howard Jerome Walls, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor
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Patent number: 10018551Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light along a longitudinal axis to particles of a sample fluid flowing in the detection cavity. The photo-responsive material surrounds at least a portion of the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to the longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.Type: GrantFiled: January 23, 2018Date of Patent: July 10, 2018Assignee: Research Triangle InstituteInventors: Howard Jerome Walls, Anthony Clint Clayton, Randall J. Newsome, Paul G. Hoertz
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Publication number: 20180149578Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light along a longitudinal axis to particles of a sample fluid flowing in the detection cavity. The photo-responsive material surrounds at least a portion of the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to the longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.Type: ApplicationFiled: January 23, 2018Publication date: May 31, 2018Inventors: Howard Jerome Walls, Anthony Clint Clayton, Randall J. Newsome, Paul G. Hoertz
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Patent number: 9915600Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light to particles of a sample fluid flowing in the detection cavity. The photo-responsive material faces the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to a longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.Type: GrantFiled: February 19, 2016Date of Patent: March 13, 2018Assignee: Research Triangle InstituteInventors: Howard Jerome Walls, Anthony Clint Clayton, Randall J. Newsome, Paul G. Hoertz
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Publication number: 20170241893Abstract: A particle detector includes a housing, a light source, and a photo-responsive material. The housing includes a sample inlet and a sample outlet, and encloses a detection cavity. The light source directs irradiating light to particles of a sample fluid flowing in the detection cavity. The photo-responsive material faces the detection cavity, and receives measurement light propagating from the particles in a plurality of measurement light paths angled relative to a longitudinal axis. The particle detector may be utilized to measure scattered light and/or light emitted due to autofluorescence. Fluids sampled may include aerosols, bio-aerosols, and liquids.Type: ApplicationFiled: February 19, 2016Publication date: August 24, 2017Inventors: Howard Jerome Walls, Anthony Clint Clayton, Randall J. Newsome, Paul G. Hoertz
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Publication number: 20160243480Abstract: 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: ApplicationFiled: December 21, 2015Publication date: August 25, 2016Applicant: RESEARCH TRIANGLE INSTITUTEInventors: Howard Jerome WALLS, Randall J. NEWSOME, Anthony Clint CLAYTON, Robert W. YAGA, David Samuel ENSOR
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Publication number: 20140250846Abstract: 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: ApplicationFiled: February 25, 2014Publication date: September 11, 2014Applicant: RESEARCH TRIANGLE INSTITUTEInventors: Howard Jerome WALLS, Randall J. Newsome, Anthony Clint Clayton, Robert W. Yaga, David Samuel Ensor
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Patent number: 8632721Abstract: Apparatus and method for producing fibrous materials in which the apparatus includes an extrusion element configured to electrospin a substance from which the fibers are to be composed by an electric field extraction of the substance from a tip of the extrusion element, a collector disposed from the extrusion element and configured to collect the fibers, a chamber enclosing the collector and the extrusion element, and a control mechanism configured to control a gaseous environment in which the fibers are to be electrospun. The apparatus and method provide a way to produce a fiber collection having a plurality of nanofibers disposed in relation to each other. The nanofibers in the fiber collection are preferentially oriented along a longitudinal axis of the fiber collection.Type: GrantFiled: September 23, 2011Date of Patent: January 21, 2014Assignee: Research Triangle InstituteInventors: Anthony L. Andrady, David S. Ensor, Randall J. Newsome
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Publication number: 20120077014Abstract: Apparatus and method for producing fibrous materials in which the apparatus includes an extrusion element configured to electrospin a substance from which the fibers are to be composed by an electric field extraction of the substance from a tip of the extrusion element, a collector disposed from the extrusion element and configured to collect the fibers, a chamber enclosing the collector and the extrusion element, and a control mechanism configured to control a gaseous environment in which the fibers are to be electrospun. The apparatus and method provide a way to produce a fiber collection having a plurality of nanofibers disposed in relation to each other. The nanofibers in the fiber collection are preferentially oriented along a longitudinal axis of the fiber collection.Type: ApplicationFiled: September 23, 2011Publication date: March 29, 2012Applicant: Research Triangle InsituteInventors: Anthony L. ANDRADY, David S. ENSOR, Randall J. NEWSOME
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Patent number: 7134857Abstract: Apparatus and method for electrospinning fibers in which the apparatus includes a spray head having a longitudinal axis and including at least one electrospinning element disposed in a peripheral wall of the spray head surrounding the longitudinal axis. The electrospinning element includes a passage by which a substance from which the fibers are to be electrospun is provided to a tip of the extrusion electrospinning element. The electrospinning element extends from the peripheral wall in a direction from the longitudinal axis and is configured to electrospin the fibers by electric field extraction of the substance from the tip of the extrusion electrospinning element.Type: GrantFiled: April 8, 2004Date of Patent: November 14, 2006Assignee: Research Triangle InstituteInventors: Anthony L. Andrady, David S. Ensor, Randall J. Newsome