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公开(公告)号：US20220136950A1
公开(公告)日：2022-05-05
申请号：US17602147
申请日：2020-04-09
Inventor： Daniel D. Miller-Lionberg , Casey W. Quinn , Christian C. L'Orange , Jeffrey R. Pierce , Eric A. Wendt , John Volckens
Abstract: In certain embodiments, a portable atmospheric monitor comprises a housing at least partially enclosing an inner chamber. The housing comprises an inlet and an aperture. The monitor also includes at least one light sensor arranged within the housing. The light sensor that senses one or more wavelengths of sunlight received via the aperture. The monitor includes at least one light-scattering sensor that senses PM received via the inlet. The monitor includes a processor arranged within the housing and coupled to the at least one light sensor and the at least one light-scattering sensor. The processor is configured to: receive a light signal from the at least one light sensor; receive a PM signal from the at least one light-scattering sensor; determine the aerosol optical depth based upon the light signal; and determine the PM concentration based upon the PM signal.
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Patent Agency Ranking
公开(公告)号：US20240374244A1
公开(公告)日：2024-11-14
申请号：US18781632
申请日：2024-07-23
Inventor： David Leith , John Volckens , Christian L'Orange , Daniel D. Miller-Lionberg
Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.
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公开(公告)号：US11474005B2
公开(公告)日：2022-10-18
申请号：US17057256
申请日：2019-05-23
Inventor： John Volckens , Daniel D. Miller-Lionberg , Josephine Hofstetter , Casey William Quinn , Ellison Carter , David Leith
Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.
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公开(公告)号：US20210190646A1
公开(公告)日：2021-06-24
申请号：US17057256
申请日：2019-05-23
Inventor： John Volckens , Daniel D. Miller-Lionberg , Josephine Hofstetter , Casey William Quinn , Carter Ellison , David Leith
Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.
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公开(公告)号：US12053164B2
公开(公告)日：2024-08-06
申请号：US17127520
申请日：2020-12-18
Inventor： David Leith , John Volckens , Christian L'Orange , Daniel D. Miller-Lionberg
CPC classification number: A61B10/00 , G01N1/2208 , G01N1/2211 , G01N1/2273 , G01N15/0255 , A61B2010/0087 , G01N2015/0261
Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.
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公开(公告)号：US20210196244A1
公开(公告)日：2021-07-01
申请号：US17127520
申请日：2020-12-18
Inventor： David Leith , John Volckens , Christian L'Orange , Daniel D. Miller-Lionberg
IPC: A61B10/00
Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.
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