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公开(公告)号：US20200056957A1
公开(公告)日：2020-02-20
申请号：US16107734
申请日：2018-08-21
Applicant: Cascade Technologies Holdings Limited
Inventor： Paul Black , Tom Hunter
Abstract: A method of testing the structural integrity of a rigid container comprises performing a sampling process on the rigid container comprising sampling a volume of sample gas from a sampling region associated with the rigid container, wherein the method further comprises performing a detection process comprising producing one or more laser beams for excitation of one or more materials that may be in the volume of sample gas, wherein the one or more materials are representative of a gas and/or vapour and/or a liquid leak from the rigid container and detecting light that has passed through the volume of sample gas, and determining the presence and/or absence and/or amount of said one or more materials in the volume of sample gas based on detected light.
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公开(公告)号：US10180393B2
公开(公告)日：2019-01-15
申请号：US15133517
申请日：2016-04-20
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Paul Black , Colin Lumsden
IPC: G01N21/31 , G01N21/01 , G01N33/00 , G01N21/03 , G01N21/3504
Abstract: An optical cell comprises first and second opposed reflecting elements, an entrance aperture in the first reflecting element and an exit aperture in the second reflecting element, wherein the entrance and exit apertures are configured such that, in operation, light introduced into the cell via the entrance aperture is reflected at least once by the second reflecting element and at least once by the first reflecting element before leaving the cell via the exit aperture.
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公开(公告)号：US20180202926A1
公开(公告)日：2018-07-19
申请号：US15581153
申请日：2017-04-28
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Paul BLACK , Ruth LINDLEY , Ian HOWIESON , Stephen WALDRON
CPC classification number: G01N21/39 , G01N21/031 , G01N21/3151 , G01N21/3504 , G01N2021/399 , G01N2201/0612 , G01N2201/0633
Abstract: A laser detection system comprises a sample chamber configured to receive and contain a volume of sample gas, one or more lasers within at least one laser housing, wherein each laser is configured to produce a respective laser beam for excitation of one or more different materials in the sample gas and the one or more lasers are outside the sample chamber, a detector apparatus for detecting light output from the sample chamber, a first optical interface to the sample chamber having at least one window that is at least partially transparent to the laser beams from the one or more lasers, wherein the at least one laser housing is positioned in a close-coupling arrangement relative to the at least one window of the first optical interface such that, in use, the laser beams are substantially unmodified by passage between the laser housing and the at least one window.
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公开(公告)号：US20180202887A1
公开(公告)日：2018-07-19
申请号：US15920311
申请日：2018-03-13
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Iain Howieson , Paul Miller , Stephen Waldron
Abstract: A leak detection system for detecting leaks in pressurised containers, the system comprising a leak test conveyor for moving each container and an accumulation tunnel through which the leak test conveyer extends, wherein the accumulation tunnel and the leak test conveyer together define at least one enclosed accumulation volume, each enclosed accumulation volume being sized to accommodate only a single container, thereby to allow gas leaking from the single container to accumulate, and a gas sensor for sensing accumulated leaked gas from the single container.
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公开(公告)号：US09939342B2
公开(公告)日：2018-04-10
申请号：US14916734
申请日：2015-07-31
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Iain Howieson , Paul Miller , Stephen Waldron
Abstract: A leak detection system for detecting leaks in pressurized containers, the system comprising a leak test conveyor for moving each container and an accumulation tunnel through which the leak test conveyer extends, wherein the accumulation tunnel and the leak test conveyer together define at least one enclosed accumulation volume, each enclosed accumulation volume being sized to accommodate only a single container, thereby to allow gas leaking from the single container to accumulate, and a gas sensor for sensing accumulated leaked gas from the single container.
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Patent Agency Ranking
公开(公告)号：US10830660B2
公开(公告)日：2020-11-10
申请号：US14883125
申请日：2015-10-14
Applicant: Cascade Technologies Holdings Limited
Inventor： Paul Miller , Graeme Walker , Iain Howieson , Ruth Lindley
Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
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公开(公告)号：US10408701B2
公开(公告)日：2019-09-10
申请号：US15920311
申请日：2018-03-13
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Iain Howieson , Paul Miller , Stephen Waldron
Abstract: A leak detection system for detecting leaks in pressurized containers, the system comprising a leak test conveyor for moving each container and an accumulation tunnel through which the leak test conveyer extends, wherein the accumulation tunnel and the leak test conveyer together define at least one enclosed accumulation volume, each enclosed accumulation volume being sized to accommodate only a single container, thereby to allow gas leaking from the single container to accumulate, and a gas sensor for sensing accumulated leaked gas from the single container.
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公开(公告)号：US20170307519A1
公开(公告)日：2017-10-26
申请号：US15133517
申请日：2016-04-20
Applicant: CASCADE TECHNOLOGIES HOLDINGS LIMITED
Inventor： Paul BLACK , Colin LUMSDEN
CPC classification number: G01N21/3103 , G01N21/01 , G01N21/031 , G01N21/3504 , G01N33/0036 , G01N2021/3125 , G01N2201/06113 , G01N2201/06146 , G01N2201/0668
Abstract: An optical cell comprises first and second opposed reflecting elements, an entrance aperture in the first reflecting element and an exit aperture in the second reflecting element, wherein the entrance and exit apertures are configured such that, in operation, light introduced into the cell via the entrance aperture is reflected at least once by the second reflecting element and at least once by the first reflecting element before leaving the cell via the exit aperture.
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公开(公告)号：US11566962B2
公开(公告)日：2023-01-31
申请号：US16107734
申请日：2018-08-21
Applicant: Cascade Technologies Holdings Limited
Inventor： Paul Black , Tom Hunter
Abstract: A method of testing the structural integrity of a rigid container comprises performing a sampling process on the rigid container comprising sampling a volume of sample gas from a sampling region associated with the rigid container, wherein the method further comprises performing a detection process comprising producing one or more laser beams for excitation of one or more materials that may be in the volume of sample gas, wherein the one or more materials are representative of a gas and/or vapour and/or a liquid leak from the rigid container and detecting light that has passed through the volume of sample gas, and determining the presence and/or absence and/or amount of said one or more materials in the volume of sample gas based on detected light.
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公开(公告)号：US20170108397A1
公开(公告)日：2017-04-20
申请号：US14883125
申请日：2015-10-14
Applicant: Cascade Technologies Holdings Limited
Inventor： Paul Miller , Graeme Walker , Iain Howieson , Ruth Lindley
Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
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