-
公开(公告)号：US10188973B2
公开(公告)日：2019-01-29
申请号：US14646165
申请日：2013-12-06
Applicant: Research Triangle Institute
Inventor： Anthony Clint Clayton , Howard Jerome Walls , Adam Joseph Rieth , David Samuel Ensor
IPC: B01D39/00
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)/ΔP, where Pt is the fractional penetration of a specific aerosol particle diameter and ΔP 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.
-
公开(公告)号：US20180149578A1
公开(公告)日：2018-05-31
申请号：US15877991
申请日：2018-01-23
Applicant: Research Triangle Institute
Inventor： Howard Jerome Walls , Anthony Clint Clayton , Randall J. Newsome , Paul G. Hoertz
CPC classification number: G01N15/1436 , G01N15/0205 , G01N15/1459 , G01N21/53 , G01N21/645 , G01N21/6486 , G01N2015/0046 , G01N2015/1486 , G01N2015/1493 , G01N2021/4721 , G01N2201/06113 , G01N2201/062
Abstract: 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.
-
公开(公告)号：US20190257737A1
公开(公告)日：2019-08-22
申请号：US16398400
申请日：2019-04-30
Applicant: Research Triangle Institute
Abstract: Sample monitoring and flow control systems and methods are disclosed for monitoring of airborne particulates. A system may include a particle collection filter. The system also includes a fluid moving device for moving a sample through the particle collection filter. Further, the system includes a light source configured to direct irradiating light towards the particle collection filter. The system also includes a light detector positioned to receive the irradiating light passing through the particle collection filter and configured to generate a signal representative of an amount of the received light. Further, the system includes a controller configured to receive the signal and to control the fluid moving device based on the amount of the received light.
-
公开(公告)号：US20140250846A1
公开(公告)日：2014-09-11
申请号：US14189684
申请日：2014-02-25
Applicant: RESEARCH TRIANGLE INSTITUTE
Inventor： Howard Jerome WALLS , Randall J. Newsome , Anthony Clint Clayton , Robert W. Yaga , David Samuel Ensor
CPC classification number: B01D46/0001 , A62B18/02 , A62B18/04 , A62B18/084 , A62B23/025 , B01D46/103 , B01D46/546 , D01D5/0076 , D10B2509/00
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.
Abstract translation: 一种过滤装置，包括具有1）内表面的轮廓支撑件，2）与内表面相比间隔开比轮廓支撑件的中心更远的外周表面，以及3）封闭并密封到轮廓支撑件的周边的边缘。 过滤装置包括从内表面延伸到外周表面的轮廓支撑件中的宏观开口，以及直径小于1微米的多个纳米纤维。 纳米纤维布置在成型支撑体的外周表面上，并且覆盖宏观开口以在轮廓支撑件上形成过滤介质。
-
公开(公告)号：US20200072669A1
公开(公告)日：2020-03-05
申请号：US16557399
申请日：2019-08-30
Applicant: Research Triangle Institute
Inventor： Kelley Jo Rountree , James Lynn Davis , Karmann Cressman Mills , Georgiy Bobashev , Robert Furberg , Anthony Clint Clayton
Abstract: A mannikin-based optical analyzer for analyzing an exposure of a subject to an environmental lighting condition. The analyzer has a mannikin with an outer surface replicating a facial profile of the subject, an interior inside the outer surface, and at least one pupil for admission of light into the interior of the mannikin. The analyzer has at least one optical detector configured to acquire and wavelength analyze light directed through the at least one pupil.
-
Patent Agency Ranking
公开(公告)号：US10099165B2
公开(公告)日：2018-10-16
申请号：US14975978
申请日：2015-12-21
Applicant: RESEARCH TRIANGLE INSTITUTE
Inventor： Howard Jerome Walls , Randall J. Newsome , Anthony Clint Clayton , Robert W. Yaga , David Samuel Ensor
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.
-
公开(公告)号：US20170241893A1
公开(公告)日：2017-08-24
申请号：US15048199
申请日：2016-02-19
Applicant: Research Triangle Institute
Inventor： Howard Jerome Walls , Anthony Clint Clayton , Randall J. Newsome , Paul G. Hoertz
CPC classification number: G01N15/1436 , G01N15/0205 , G01N15/1459 , G01N21/53 , G01N21/645 , G01N21/6486 , G01N2015/0046 , G01N2015/1486 , G01N2015/1493 , G01N2021/4721 , G01N2201/06113 , G01N2201/062
Abstract: 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.
-
公开(公告)号：US20240344956A1
公开(公告)日：2024-10-17
申请号：US18631969
申请日：2024-04-10
Applicant: Research Triangle Institute
Inventor： Anthony Clint Clayton , Ryan Chartier , Jameson Holden , Roger Pope
IPC: G01N15/075 , G01N15/06
CPC classification number: G01N15/075 , G01N15/0618
Abstract: A particle detector system for particle analysis. The system has a detection chamber for introduction of a fluid stream having particles, a light source configured to irradiate the particles across a two-dimensional plane in the detection chamber. and a light detector configured to detect either light scattered by particles or light emitted from the particles.
-
公开(公告)号：US11047787B2
公开(公告)日：2021-06-29
申请号：US16861550
申请日：2020-04-29
Applicant: Research Triangle Institute
Inventor： Anthony Clint Clayton , Howard Jerome Walls , Roger H. Pope
Abstract: An optical system for particle detection. The system includes a sample inlet housing; a sample outlet housing; a detection cavity having an axially surrounding wall and disposed between the sample inlet housing and the sample outlet housing; a light source configured to irradiate light through the detection cavity to particles of a sample fluid flowing inside the wall of the detection cavity; a light detector for detecting the light that is scattered by particles of the sample fluid in the detection cavity; an alignment rail having a base and sidewalls which a) extend from the sample inlet housing to the sample outlet housing and b) connect the sample inlet housing to the sample outlet housing; and the alignment rail comprising a channel formed by the base and the sidewalls, the channel having a channel lateral width fitting to a housing width of at least one of the sample inlet housing and the sample outlet housing, whereby the sample inlet housing, the housing, and the sample outlet housing are held in alignment together.
-
公开(公告)号：US10481070B2
公开(公告)日：2019-11-19
申请号：US16398400
申请日：2019-04-30
Applicant: Research Triangle Institute
Abstract: Sample monitoring and flow control systems and methods are disclosed for monitoring of airborne particulates. A system may include a particle collection filter. The system also includes a fluid moving device for moving a sample through the particle collection filter. Further, the system includes a light source configured to direct irradiating light towards the particle collection filter. The system also includes a light detector positioned to receive the irradiating light passing through the particle collection filter and configured to generate a signal representative of an amount of the received light. Further, the system includes a controller configured to receive the signal and to control the fluid moving device based on the amount of the received light.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.019 seconds)
