A photoionization detector sensor equipped with a temperature compensating and output adjustable ultraviolet lamp driver for supplying an alternating current signal to the ultraviolet lamp effective to light the ultraviolet lamp with direct current supplied from both a first variable voltage supply circuit and a second temperature sensitive fixed voltage supply circuit, and method of standardizing output of the photoionization detector sensor by adjusting the voltage supplied to the driver by the first variable voltage supply circuit so that future reported values will more closely approximate actual values.
A photoionization detector sensor equipped with an adjustable gain amplifier, and method of standardizing output of the photoionization detector sensor by adjusting the gain so that an actual test value expected to produce a known anticipated value matches the anticipated value.
A photoionization detector comprised of a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons and a sensor having at least one opening for UV light to pass through and electrically conductive patterns on the top and bottom surfaces of the plate. A negative electrical potential pattern can be on one of the top or the bottom surface and can include an interior portion that is at least a first distance away from every edge of the at least one opening. An electron collecting electrode pattern can be on the other of the top or the bottom surface and can substantially fill an area surrounding the opening such that the negative electrical potential pattern and the electron collecting electrode pattern are offset relative to each other. The ionized molecules are collectable by a bias electrode and electrons are collectable by a collector electrode.
H01J 61/067 - Electrodes principales pour lampes à décharge à basse pression
G01N 27/66 - Utilisation de l'onde ou de la radiation des particules pour ioniser un gaz, p.ex. dans une chambre d'ionisation et mesure de l'intensité ou de la tension électriques
G01N 30/70 - Détecteurs électriques à capture d'électrons
4.
PHOTOIONIZATION DETECTOR HAVING IMPROVED GAIN AND REDUCED HUMIDITY SENSITIVITY
A photoionization detector comprised of a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons and a sensor having at least one opening for UV light to pass through and electrically conductive patterns on at least one of the top and bottom surfaces of the plate, including at least a negative electrical potential pattern and an electron collecting electrode pattern. The ionized molecules are collectable by a bias electrode and electrons are collectable by a collector electrode. The negative electrical potential pattern includes a linear portion and a polarization plate. The electron collecting electrode pattern includes a wire suspended across the at least one opening and a linear portion on the surface opposite the wire. The electrically conductive patterns can further include a grounded potential conductive pattern having a first portion on the top surface and a second portion on the bottom surface.
G01N 27/66 - Utilisation de l'onde ou de la radiation des particules pour ioniser un gaz, p.ex. dans une chambre d'ionisation et mesure de l'intensité ou de la tension électriques
G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
5.
Galvanic current protection for photoionization detector
A photoionization detector comprised of a sensor having at least a collector electrode and a grounding electrode, a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons, and an amplifier connected to the collector electrode. Each of the collector electrode and the grounding electrode include a feed-thru pin, an inner trace surrounding the feed-thru pin, an outer trace surrounding the inner trace, wherein the outer trace on each electrode is comprised of the same material, a channel between the inner trace and the outer trace, wherein the channel is comprised of a different material than the outer trace and the inner trace, and a bridge connecting the outer trace with the inner trace. The ionized molecules are collectable by a bias electrode and electrons are collectable by the collector electrode.
G01N 27/64 - Utilisation de l'onde ou de la radiation des particules pour ioniser un gaz, p.ex. dans une chambre d'ionisation
G01N 27/66 - Utilisation de l'onde ou de la radiation des particules pour ioniser un gaz, p.ex. dans une chambre d'ionisation et mesure de l'intensité ou de la tension électriques
A cartridge for use in conjunction with a target analyte permeation testing instrument and method for measuring transmission rate of a target analyte through a prefilled package or container using the cartridge. The cartridge includes an open ended vessel, a first end cap capable of repeated sealed engagement over one of the open axial ends of the vessel, a second end cap in sealed engagement over the other open axial end of the vessel, an entrance port for providing fluid communication from a source of carrier gas to the void volume of the vessel, and an exit port for providing fluid communication from the void volume of the vessel to a target analyte sensor.
An analyte permeation testing instrument with an edge leakage minimizing feature and a method of measuring permeability of a test film for a target analyte utilizing the analyte permeation testing instrument. The instrument includes a cartridge and a target analyte sensor. The cartridge has separable first and second plates having first and second cells respectively. The plates are operable for engaging a test film therebetween so as to sealingly separate the first and second cells. A surround around at least one of the first cell and the second cell projects within the interface between the first and second plates for engaging a periphery of the test film to compress the test film and thereby form a peripheral edge seal when the plates are clamped together.
A gas discharge lamp and photoionization sensor employing the gas discharge lamp. The lamp includes a housing containing a working gas sealed within the housing and a primary ultra-violet transparent window through a first longitudinal end of the housing. In a first embodiment the lamp includes an arched band of elastic getter material band with longitudinally extending diametrically opposed legs wedged within the chamber defined by the housing. In a second embodiment the lamp includes a second ultra-violet transparent window within the housing held into positon against the primary ultra-violet transparent window by an arched metal support band within the housing.
G01N 27/64 - Utilisation de l'onde ou de la radiation des particules pour ioniser un gaz, p.ex. dans une chambre d'ionisation
H01J 61/44 - Dispositifs caractérisés par le matériau luminescent utilisé
H01J 61/16 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement comprenant de l'hélium, de l'argon, du néon, du crypton ou du xénon en qualité d'élément constitutif principal
H01J 61/12 - Emploi de substances spécifiées pour l'atmosphère gazeuse; Spécification de la pression ou de la température de fonctionnement
F21K 2/08 - Sources lumineuses non électriques utilisant la luminescence; Sources lumineuses utilisant l'électrochimioluminescence utilisant la chimioluminescence actionnées par un champ électrique, c. à d. utilisant l'électrochimioluminescence
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Oxygen permeability testing apparatus for use with films and other materials, for use in the photovoltaic, academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) A nitrogen gas flush ring as part of a gaseous permeation testing device, namely, a peripheral channel which is flushed with an inert gas during testing for preventing atmospheric gases and vapors of measure from reaching the testing chamber of the testing device, for use with film and packages, used in the academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Water vapor transmission rate testing device, namely, water vapor transmission rate analyzer, for use with film and packages, for use in the photovoltaic, academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Instruments for measuring water vapor, namely, coulometric sensors that measure the flux of water vapor through a barrier and in no way involve testing for contamination.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Oxygen sensors used in testing and measurement instruments for use in the photovoltaic, academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Scientific measuring and testing instruments, namely, instruments for measuring oxygen concentration and/or carbon dioxide concentration in packaging headspace, namely, oxygen concentration and/or carbon dioxide concentration of the internal volume of a package that is not occupied by the product being packaged.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Scientific measuring and testing instruments, namely instruments for measuring oxygen concentration and/or carbon dioxide concentration in packaging headspace, namely, oxygen concentration and/or carbon dioxide concentration of the internal volume of a package that is not occupied by the product being packaged
An optical sensor effective for (i) exciting an analyte-sensitive fluorophore, exposed to an unknown concentration of the analyte for which the fluorophore is sensitive, with radiant energy from an excitation source, (ii) measuring the extent to which luminescence of the excited fluorophore is quenched by presence of the analyte, (iii) ascertaining the concentration of analyte to which the fluorophore is exposed from such measurement, and (iv) reporting the ascertained concentration. The sensor is preferably an epi-fluroescence confocal optical detector, and preferably performs step (ii) by employing a summing amplifier.
A protocol adaptive, computer controlled target-analyte permeation testing instrument, capable of self-adaptive adjustments to measurement interval, rezero frequency and independent zero go-no-go.
G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux
G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes ; Manipulation de matériaux à cet effet
G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
32.
Reactor for near absolute conversion of alternative moiety-containing species into a select moiety-containing species and analytical instrument employing the reactor
A reactor capable of near absolute catalytic conversion of at least one alternative compound containing a specified moiety into a select compound containing the specific moiety, and an analytical instrument employing the reactor. The reactor including a catalytic element configured and arranged for fluid contact with a test fluid and a reactant, with at least 90% of the surface area of the catalytic element located within a thermal target zone in the reaction chamber of the reactor.
09 - Appareils et instruments scientifiques et électriques
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Measuring and testing instruments, namely, gaseous leak
detectors, instruments for measuring oxygen transmission
rates, instruments for measuring carbon dioxide transmission
rates, and instruments for water vapor permeability testing;
measuring and testing instruments, namely, instruments for
measuring oxygen concentration in packaging headspace;
measuring and testing instruments, namely, instruments for
measuring carbon dioxide concentration in packaging
headspace; measuring and testing instruments, namely,
instruments for measuring microbial load, and oxygen
analyzers; measuring and testing instruments, namely, total
hydrocarbon analyzers, total volatile organic carbon
analyzers, methane and non-methane hydrocarbon analyzers,
total carbon analyzers, gas chromatography apparatuses,
photoionization sensors for measuring trace levels of
volatile organic compounds, gas chromatography permeation
calibrators, multipoint samples for gas chromatographs, and
gas analyzers. Installation, repair and maintenance services in the field
of modified atmosphere packaging (MAP) solutions;
installation, repair and maintenance services in the field
of package integrity solutions; installation, repair and
maintenance services in the fields of package sterility
solutions and microbial control solutions for packaged
perishable goods; installation, repair and maintenance
services in the field of permeation testing solutions for
permeation of oxygen, carbon dioxide, and water vapor;
installation, repair and maintenance services in the fields
of environmental and workplace monitoring solutions for
volatile organic compounds, ethylene oxide, styrene,
acrylonitrile, butadiene, acetone, benzene, vinyl chloride,
propylene oxide, sulfur compounds, mercaptans, carbon
disulfide, freon, trichloroethylene, methyl chloride,
tetrachloroethene, arsine and phosphine; installation,
repair and maintenance services in the field of frozen food
and carbonated beverage volatile organic compounds
monitoring solutions; installation, repair and maintenance
services in the field of oil and gas exploration volatile
organic compounds monitoring solutions; installation, repair
and maintenance services in the field of grain drying
methane and non-methane hydrocarbon monitoring solutions. Training and education services in the field of modified
atmosphere packaging (MAP) solutions; training and education
services in the field of package integrity solutions;
training and education services in the field of permeation
testing solutions for permeation of oxygen, carbon dioxide,
and water vapor; training and education services in the
field of microbial control solutions for packaged perishable
goods; training and education services in in the field of
shelf life optimization solutions for packaged perishable
goods; training and education services in the fields of
environmental and workplace monitoring solutions for
volatile organic compounds, ethylene oxide, styrene,
acrylonitrile, butadiene, acetone, benzene, vinyl chloride,
propylene oxide, sulfur compounds, mercaptans, carbon
disulfide, freon, trichloroethylene, methyl chloride,
tetrachloroethene, arsine and phosphine; training and
education services in the field of frozen food and
carbonated beverage volatile organic compounds monitoring
solutions; training and education services in the field of
oil and gas exploration volatile organic compounds
monitoring solutions; training and education services in the
field of grain drying methane and non-methane hydrocarbon
monitoring solutions. Industrial analysis and research services in the fields of
modified atmosphere packaging (MAP), package integrity,
permeability of materials to oxygen, carbon dioxide and
water vapor; testing, authentication and quality control
services in the fields of modified atmosphere packaging
(MAP), package integrity, and permeability of materials to
oxygen, carbon dioxide and water vapor; consultancy
services, namely, process monitoring for quality assurance
and process optimization in the fields of modified
atmosphere packaging (MAP), package integrity, and
permeability of materials to oxygen, carbon dioxide and
water vapor; industrial analysis and research services in
the fields of package transportation survivability, and
shelf life of packaged perishable goods; testing,
authentication and quality control in the fields of package
transportation survivability, and shelf life of packaged
perishable goods; consultancy services, namely, process
monitoring for quality assurance and process optimization in
the fields of package transportation survivability, and
shelf life of packaged perishable goods.
09 - Appareils et instruments scientifiques et électriques
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Measuring and testing instruments, namely, gaseous leak detectors, instruments for measuring oxygen transmission rates, instruments for measuring carbon dioxide transmission rates, and instruments for water vapor permeability testing
(2) Measuring and testing instruments, namely, instruments for measuring oxygen concentration in finished packaging to ensure package integrity and help define product shelf life, for use in the academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries
(3) Measuring and testing instruments, namely, instruments for measuring carbon dioxide concentration in finished packaging to ensure package integrity and help define product shelf life, for use in the academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
(4) Measuring and testing instruments, namely, total hydrocarbon analyzers, total volatile organic carbon analyzers, methane and non-methane hydrocarbon analyzers, total carbon analyzers, photoionization sensors for measuring trace levels of volatile organic compounds, gas chromatography permeation calibrators, multipoint sampler for use in calibrating gas chromatographs, and hydrocarbon analyzers. (1) Installation, repair and maintenance services of gaseous leak detectors, oxygen analyzers, instruments for measuring oxygen concentration in packaging headspace, and instruments for measuring carbon dioxide concentration in the field of modified atmosphere packaging (MAP) solutions; Installation, repair and maintenance services of gaseous leak detectors, oxygen analyzers, instruments for measuring oxygen concentration in packaging headspace, and instruments for measuring carbon dioxide concentration in finished packaging to ensure package integrity and help define product shelf life, for use in the academic, aerospace, air and gas, automotive, chemical, construction, consumer products, electronics, energy, food and beverage, food safety, government/military, healthcare, laboratory and packaging industries.
(2) Installation, repair and maintenance of oxygen, carbon dioxide, and water vapor permeation testing instruments.
(3) Installation, repair and maintenance services in the fields of environmental and workplace monitoring solutions for volatile organic compounds, ethylene oxide, styrene, acrylonitrile, butadiene, acetone, benzene, vinyl chloride, propylene oxide, sulfur compounds, mercaptans, carbon disulfide, chlorofluorocarbons, trichloroethylene, methyl chloride, tetrachloroethene, arsine and phosphine; frozen food and carbonated beverage volatile organic compounds monitoring solutions; Installation, repair and maintenance of volatile organic compounds monitoring instruments in the field of oil and gas exploration; and Installation, repair and maintenance of methane and non-methane hydrocarbon monitoring instruments in the field of grain drying.
(4) Training and education services in the field of modified atmosphere packaging (MAP) solutions.
(5) Training and education services relating to testing for seal strength and leak detection in packaged products.
(6) Training and education services relating to testing for permeation of oxygen, carbon dioxide, and water vapor in packaged products.
(7) Training and education services in the field of shelf life optimization solutions for packaged perishable goods.
(8) Training and education services in the fields of environmental and workplace monitoring solutions for volatile organic compounds, ethylene oxide, styrene, acrylonitrile, butadiene, acetone, benzene, vinyl chloride, propylene oxide, sulfur compounds, mercaptans, carbon disulfide, chlorofluorocarbons, trichloroethylene, methyl chloride, tetrachloroethene, arsine and phosphine; training and education services in the fields of frozen food and carbonated beverage volatile organic compounds monitoring solutions; training and education services in the field of oil and gas exploration volatile organic compounds solutions; training and education services in the field of grain drying methane and non-methane hydrocarbon monitoring solutions.
(9) Industrial analysis and research services in the fields of modified atmosphere packaging (MAP), package integrity, permeability of materials to oxygen, carbon dioxide and water vapor; Testing, authentication and quality control services in the fields of modified atmosphere packaging (MAP), package integrity, and permeability of materials to oxygen, carbon dioxide and water vapor; Consultancy services, namely, process monitoring for quality assurance and process optimization in the fields of modified atmosphere packaging (MAP), package integrity, and permeability of materials to oxygen, carbon dioxide and water vapor.
(10) Industrial analysis and research services in the fields of package transportation survivability, and shelf life of packaged perishable goods; Testing, authentication and quality control in the fields of package transportation survivability, and shelf life of packaged perishable goods; Consultancy services, namely, process monitoring for quality assurance and process optimization in the fields of package transportation survivability, and shelf life of packaged perishable goods.
09 - Appareils et instruments scientifiques et électriques
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Measuring and testing instruments, namely, gaseous leak detectors, instruments for measuring oxygen transmission rates, instruments for measuring carbon dioxide transmission rates, and instruments for water vapor permeability testing; Measuring and testing instruments, namely, instruments for measuring oxygen concentration in packaging headspace; Measuring and testing instruments, namely, instruments for measuring carbon dioxide concentration in packaging headspace; Measuring and testing instruments, namely, instruments for measuring [ microbial load, and ] oxygen analyzers for industrial applications; Measuring and testing instruments, namely, total hydrocarbon analyzers, total volatile organic carbon analyzers, methane and non-methane hydrocarbon analyzers, total carbon analyzers, gas chromatography apparatuses for laboratory use, photoionization sensors for measuring trace levels of volatile organic compounds, gas chromatography permeation calibrators for calibrating gas chromatographs, and gas analyzers for industrial applications Installation, repair and maintenance services of gaseous leak detectors, oxygen analyzers, instruments for measuring oxygen concentration in packaging headspace, and instruments for measuring carbon dioxide concentration in packaging headspace in the field of modified atmosphere packaging (MAP) solutions; Installation, repair and maintenance services of gaseous leak detectors, instruments for measuring oxygen transmission rates, instruments for measuring carbon dioxide transmission rates, instruments for water vapor permeability testing, instruments for measuring oxygen concentration in packaging headspace, instruments for measuring carbon dioxide concentration in packaging headspace, [ and instruments for measuring microbial load in the field of package integrity solutions; Installation, repair and maintenance services of instruments for measuring microbial load, ] gas chromatography apparatuses for laboratory use, and photoionization sensors for measuring trace levels of volatile organic compounds in the fields of package sterility solutions [ and microbial control solutions for packaged perishable goods; ]Installation, repair and maintenance services of instruments for measuring oxygen transmission rates, instruments for measuring carbon dioxide transmission rates, and instruments for water vapor permeability testing in the field of permeation testing solutions for permeation of oxygen, carbon dioxide, and water vapor; Installation, repair and maintenance services of total volatile organic carbon analyzers, and photoionization sensors for measuring trace levels of volatile organic compounds in the fields of environmental and workplace monitoring solutions for volatile organic compounds, ethylene oxide, styrene, acrylonitrile, butadiene, acetone, benzene, vinyl chloride, propylene oxide, sulfur compounds, mercaptans, carbon disulfide, freon, trichloroethylene, methyl chloride, tetrachloroethene, arsine and phosphine; Installation, repair and maintenance services of gas chromatography apparatuses for laboratory use, and photoionization sensors for measuring trace levels of volatile organic compounds in the field of frozen food and carbonated beverage volatile organic compounds monitoring solutions; Installation, repair and maintenance services of total hydrocarbon analyzers, and gas chromatography apparatuses for laboratory use in the field of oil and gas exploration volatile organic compounds monitoring solutions; Installation, repair and maintenance services of methane and non-methane hydrocarbon analyzers in the field of grain drying methane and non-methane hydrocarbon monitoring solutions Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of modified atmosphere packaging (MAP) solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of package integrity solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of permeation testing solutions for permeation of oxygen, carbon dioxide, and water vapor; [ Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of microbial control solutions for packaged perishable goods; ] Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of shelf life optimization solutions for packaged perishable goods; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of environmental and workplace monitoring solutions for volatile organic compounds, ethylene oxide, styrene, acrylonitrile, butadiene, acetone, benzene, vinyl chloride, propylene oxide, sulfur compounds, mercaptans, carbon disulfide, freon, trichloroethylene, methyl chloride, tetrachloroethene, arsine and phosphine; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of frozen food and carbonated beverage volatile organic compounds monitoring solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of oil and gas exploration volatile organic compounds monitoring solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of grain drying methane and non-methane hydrocarbon monitoring solutions Industrial analysis and research services in the fields of modified atmosphere packaging (MAP), package integrity, permeability of materials to oxygen, carbon dioxide and water vapor; Testing, authentication and quality control services in the fields of modified atmosphere packaging (MAP), package integrity, and permeability of materials to oxygen, carbon dioxide and water vapor; Consultancy services, namely, observation and evaluation of packaging for quality assurance and process optimization in the fields of modified atmosphere packaging (MAP), package integrity, and permeability of materials to oxygen, carbon dioxide and water vapor; Industrial analysis and research services in the fields of package transportation survivability, and shelf life of packaged perishable goods; Testing, authentication and quality control in the fields of package transportation survivability, and shelf life of packaged perishable goods; Consultancy services, namely, observation and evaluation of packaging for quality assurance and process optimization in the fields of package transportation survivability, and shelf life of packaged perishable goods
38.
Methods for transmembrane measurement of oxygen concentration and monitoring changes in oxygen concentration within a space enclosed by a membrane employing a photoluminescent transmembrane oxygen probe
Measuring oxygen concentration and monitoring changes in oxygen concentration within an enclosed space by applying a transmembrane photoluminescent oxygen probe to the external surface of the membrane forming the enclosed space, wherein the transmembrane photoluminescent oxygen probe has an oxygen impermeable support layer carrying a spot of an oxygen-sensitive photoluminescent dye and a layer of a pressure-sensitive adhesive on a first major surface of the support layer.
G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
G01N 21/25 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
G01N 27/26 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en utilisant l'électrolyse ou l'électrophorèse
A protocol adaptive, computer controlled target-analyte permeation testing instrument, capable of self-adaptive adjustments to measurement interval, rezero frequency and independent zero go-no-go.
G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes ; Manipulation de matériaux à cet effet
41.
TARGET-ANALYTE PERMEATION TESTING INSTRUMENT WITH SENSOR FEED LINE CONDITIONING SYSTEM
G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes ; Manipulation de matériaux à cet effet
42.
Calibration vial and technique for calibrating a fiber optic oxygen sensing needle
A calibration tool and method of using the tool to calibrate a fiber optic needle oxygen sensor. The tool includes at least a vial sealingly covered by a septa and containing a supply of particulate oxygen getter within the chamber of the vial. The vial has an open top and is constructed from an oxygen impermeable material. The septa is resealing, needle-penetrable and oxygen impermeable. The supply of particulate oxygen getter is retained within an oxygen permeable sachet.
G01N 21/27 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
G01N 21/77 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique
An instrument and method for accurately measuring target analyte levels is a gas sample over an extended range. The instrument includes (i) a sensor effective for detecting the analyte, and (ii) a barrier film having limited permeability for the analyte covering the inlet orifice on the sensor for reducing the flux of analyte into the sensor. The method involves (a) sensing the flux of target analyte passing through the barrier film and into sensing contact with the sensor, and (b) reporting a concentration of analyte by multiplying a concentration value previously correlated to the sensed flux by the flux reduction factor of the barrier film.
G01N 27/413 - Cellules de concentration utilisant des électrolytes liquides
48.
REACTOR FOR NEAR ABSOLUTE CONVERSION OF ALTERNATIVE MOIETY-CONTAINING SPECIES INTO A SELECT MOIETY-CONTAINING SPECIES AND ANALYTICAL INSTRUMENT EMPLOYING THE REACTOR
A reactor (300) capable of near absolute catalytic conversion of at least one alternative compound containing a specified moiety into a select compound containing the specific moiety, and an analytical instrument (100) employing the reactor (300). The reactor (300) including a catalytic element (350) configured and arranged for fluid contact with a test fluid and a reactant, with at least 90% of the surface area of the catalytic element (350) located within a thermal target zone (TZone) in the reaction chamber (319) of the reactor (300).
A sensor for detecting a target analyte in a gaseous sample at ultra-low concentrations wherein access opening(s) provided through the sensor housing are plugged with endcap(s) and spent gas (i.e., gaseous sample post detection) is channeled along the interface between the sensor housing and the endcap(s) prior to venting of the spent gas, for flushing any environmentally introduced target analyte from this interface.
09 - Appareils et instruments scientifiques et électriques
Produits et services
A part of gaseous permeation testing instruments for providing a gas tight seal between the testing material and the instrument, namely, a nitrogen flush ring in the nature of a peripheral channel in fluid communication with a source of nitrogen flushing gas sold as an integral component of gaseous permeation testing instruments.
A photoluminescent oxygen probe including a tack with a layer of a pressure-sensitive adhesive and an oxygen-sensitive photoluminescent element on the underside of the head. The probe is effective for sensing oxygen concentration within an enclosed space by puncturing the container defining the enclosed space the with the probe's shank and adhering the underside of the probe's head to the container so as to sealingly surround the puncture, thereby placing the oxygen-sensitive photoluminescent dye on the underside of the probe's head into sensible communication with the enclosed space through the puncture hole.
A fiber optic analyte sensing needle 10 with a photoluminescent analyte-sensitive probe 70 nonadherently entrapped within the lumen 29 of the needle 20 between the distal tip 51 of a fiber optic filament 50 and the distal tip 21 of the needle 20. The probe 70 has unimpeded fluid communication with the external environment through a port 28 in the needle 20.
G01N 21/77 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique
G01N 21/78 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique produisant un changement de couleur
09 - Appareils et instruments scientifiques et électriques
Produits et services
a feature of gaseous permeation testing instruments for providing a gas tight seal between the testing material and the instrument, namely, a nitrogen flush ring in the nature of a peripheral channel in fluid communication with a source of nitrogen flushing gas sold as an integral component of gaseous permeation testing instruments
54.
Gas discharge lamp with an axially extending strip of getter and method of manufacture
A gas discharge lamp, photoionization sensor employing the gas discharge lamp, and method of manufacturing the lamp. The lamp includes a longitudinally extending strip of getter within the housing.
The method of manufacture includes the steps of (i) obtaining a glass tube, (ii) constricting the tube intermediate the longitudinal ends to divide the bore into first and second chambers in fluid communication with one another through a passageway in the constriction, (iii) attaching an ultraviolet transparent window over the open end of the first chamber, (iv) inserting a strip of getter into the first chamber through the passageway in the constriction, (v) purging the first chamber with a noble gas, and (vi) heating the tube at the constriction to detach the first chamber from the second chamber and seal the constricted end of the first chamber.
H01J 7/18 - Moyens d'absorption ou d'adsorption du gaz, p.ex. par getter
H01J 61/26 - Moyens d'absorption ou d'adsorption du gaz, p.ex. par un getter; Moyens pour empêcher le noircissement de l'enveloppe
H01J 65/04 - Lampes à atmosphère gazeuse portée à la luminescence par un champ électromagnétique extérieur ou par une radiation corpusculaire extérieure, p.ex. lampe indicatrice
55.
Fixture to hermetically isolate a capped opening on a container for gas transmission testing
An analytical instrument and associated method for ascertaining gas transmission rates of a target-analyte through a capped mouth of a bottle. The instrument employs a unique fixture that includes (1) a selectively openable and closeable enclosure defining a chamber, and (2) a mounting post extending into the chamber. The post is configured and arranged to sealingly engage an inner surface of a capped bottle neck, wherein mounting of a capped bottle neck onto the post sealingly separates the chamber into a first compartment inside the mounted capped bottle neck and a second compartment outside the mounted capped bottle neck. The fixture is configured and arranged with passageways for introducing a pressurized target-analyte-containing fluid into the first compartment of the chamber and flushing the second compartment of the chamber with a target-analyte-free fluid.
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
G01M 3/08 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite par observation de bulles dans un bassin empli de liquide pour soupapes
G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux
56.
Valve system for a coulometric analyte sensing instrument
A valve system that includes (i) first and second longitudinally facing members defining a gap therebetween in fluid communication with transversely offset first and second orifices through the members, (ii) a primary biasing means longitudinally biasing the members away from one another, (iii) an elastic element positioned within the gap between the first and second orifices, and (iv) a repositioning means for longitudinally repositioning one of the members towards the other member against the bias of the primary biasing means for adjusting the longitudinal height of the gap. The members can be repositioned between (a) a first position wherein the elastic element does not seal the gap so as to allow fluid flow from the first orifice to the second orifice through the gap, and (b) a second position wherein the elastic element is compressed between the members and seals the gap so as to prevent fluid flow from the first orifice to the second orifice through the gap.
F16K 11/04 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets
57.
LUMINESCENCE LIFETIME BASED ANALYTE SENSING INSTRUMENTS AND CALIBRATION TECHNIQUE
A method of calibrating a luminescence lifetime sensing instrument 20 and of interrogating a target-analyte long-decay luminescence probe 120 includes measuring and reporting luminescence lifetime of the probe 120 employing excitation radiation filtered to remove emission radiation, or a starting time tstart delayed by a predetermined decay delay time, or delayed by a predetermined growth delay time, or an ending time comprising the time at which luminescence intensity has decayed or risen a predetermined percentage.
G01N 21/63 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité optiquement
58.
Calibration system and technique for photoluminescent oxygen sensors with zero point maintained with a metal-air battery
A calibration device and method of using the device to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The device includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with an environmental concentration of oxygen.
G01D 1/18 - Dispositions pour la mesure donnant des résultats autres que la valeur instantanée d'une variable, d'application générale avec dispositions pour signaler le dépassement d'une valeur prédéterminée d'un paramètre non spécifié
A calibration card 10 and method of using the card 10 to calibrate an optical sensor. The card 10 comprises (i) a first mass of an oxygen sensitive fluorophore 41 configured and arranged for limiting exposure of the first mass of oxygen sensitive fluorophore 41 to near zero % oxygen, and (ii) a second mass of an oxygen sensitive fluorophore 42 configured and arranged for exposing the second mass of fluorophore 42 to an environmental concentration of oxygen.
G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
60.
Apparatus to measure permeation of a gas through a membrane
The present invention relates to an apparatus to measure permeation of a gas through a membrane. The membrane is mounted on a flange with two sealing areas. The region between the sealing areas defines an annular space. The annular space is swept with a gas in order to carry away any of the permeating gas which may leak through the sealing areas.
B01D 53/22 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
61.
Calibration card for photoluminescent oxygen sensors with zero point maintained with a metal-air battery
A calibration card and method of using the card to calibrate an analytical instrument capable of reading a photoluminescent oxygen probe. The card includes at least (a) a first mass of an oxygen sensitive photoluminescent dye retained within a hermetically sealed space so as to isolate the dye from environmental oxygen, and in fluid communication with an activated metal-air battery whereby any oxygen permeating into the hermetically sealed space is quickly consumed by the battery, and (b) a second mass of an oxygen sensitive photoluminescent dye in fluid communication with the environment whereby the second mass of photoluminescent dye is exposed to an environmental concentration of oxygen.
A sheet of sensors and a method of manufacturing such sheet of sensors. The sheet is configured with (A) a tessellated zipper pattern of identically shaped elements defining (i) a right longitudinal column consisting of a base portion of a right set of elements, (ii) a left longitudinal column consisting of a base portion of a left set of elements, and (iii) an intermediate longitudinal column consisting of alternating tab portions of the right and left elements, and (B) a continuous longitudinal strip of functional material positioned only within the intermediate column.
G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
63.
TESSELLATED ZIPPER PATTERN OF IDENTICALLY SHAPED SENSOR ELEMENTS AND METHOD OF MANUFACTURE
A sheet of sensors and a method of manufacturing such sheet of sensors. The sheet is configured with (A) a tessellated zipper pattern 20 of identically shaped elements 30 defining (i) a right longitudinal column 21r consisting of a base portion 31 of a right set of elements 30r, (ii) a left longitudinal column 21s consisting of a base portion 31 of a left set of elements 30s, and (iii) an intermediate longitudinal column 21i consisting of alternating tab portions 32 of the right 30r and left 30s elements, and (B) a continuous longitudinal strip of functional material 70 positioned only within the intermediate column 21i.
H01R 12/00 - Association structurelle de plusieurs éléments de connexion électrique isolés les uns des autres, spécialement conçue pour des circuits imprimés, p.ex. des cartes de circuit imprimé [PCB], des câbles plats ou à ruban ou des structures similaires géné; Dispositifs de couplage spécialement conçus pour des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planes; Bornes spécialement conçues pour établir le contact avec, ou pour être insérées dans des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planes
64.
Method for impermanent sealed perforation of thin-walled packaging
An instrument for impermanent sealed perforation of thin-walled, hermetically sealed packaging. The instrument includes a longitudinally tapered needle and a septum with a hole. The underside of the septum is coated with a pressure sensitive adhesive. The hole through the septum is configured and arranged to permit unrestricted passage of the distal longitudinal end portion of the needle through the hole, while sealingly engaging the longitudinal midsection of the needle. The septum is incapable of sealing the hole through the septum after withdrawal of the needle from the hole.
B65B 31/08 - Mise sous vide, sous pression ou sous gaz spécial, des réceptacles ou emballages pleins, au moyen d'ajutages par lesquels on envoie ou on retire de l'air ou d'autres gaz, p.ex. un gaz inerte la tuyère étant conçue pour percer le réceptacle ou l'enveloppe d'emballage
09 - Appareils et instruments scientifiques et électriques
Produits et services
leakage testing apparatus for flexible and semi-rigid packages; seal testing apparatus for flexible and semi-rigid packages; instrument for measuring water vapor transmission, namely, water vapor transmission rate analyzer; electronic and electrochemical devices for measuring concentrations of gases in flexible packages
A calibration card 10 and method of using the card 10 to calibrate an optical sensor. The card 10 comprises (i) a first mass of an oxygen sensitive fluorophore 41 configured and arranged for limiting exposure of the first mass of oxygen sensitive fluorophore 41 to near zero % oxygen, and (ii) a second mass of an oxygen sensitive fluorophore 42 configured and arranged for exposing the second mass of fluorophore 42 to an environmental concentration of oxygen.
G01N 21/31 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p.ex. spectrométrie d'absorption atomique
G01N 21/03 - Dispositions ou appareils pour faciliter la recherche optique - Détails de structure des cuvettes
70.
Coulometric analyte sensing instrument with an analyte-consuming sensor in a closed cell
A method for measuring the transmission rate of an analyte through a film. The method includes the steps of (i) separating a chamber into a first cell and a second cell with a known area of a film, (ii) flushing the first cell with an inert gas to remove any target analyte from the first cell, (iii) introducing a gas containing a known concentration of an analyte into the second cell, (iv) sealing the first cell to gas flow through the first cell, and (v) sensing any analyte in the first cell with a sensor that consumes the analyte at a rate greater than the rate at which the analyte is passing through the film, until a steady state rate of analyte consumption is measured by the sensor.
G01N 27/404 - Cellules avec l'anode, la cathode et l'électrolyte de la cellule du même côté d'une membrane perméable qui les sépare du fluide de l'échantillon
71.
Humidity control system for the sensing cell of an analyte permeation testing instrument
A humidity control system for an analyte permeation testing instrument. The system includes (i) an analyte permeation testing instrument, (ii) a sensor for sensing a target analyte, (iii) a humidity control chamber, and (iv) a selectively permeable membrane permeable to water vapor and impermeable to the target analyte. The analyte permeation testing instrument defines a testing chamber operable for engaging a test film such that the testing chamber is sealingly separated by the test film into a first cell and a second cell throughout a permeation testing period. The sensor is placed in fluid communication with the first cell. The humidity control chamber is positioned adjacent the first cell and in fluid communication with both a source of gas having a known humidity and the first cell, with the selectively permeable membrane sealingly separating the humidity control chamber from the first cell.
A device for measuring permeability of a gas sample through a thin film, or a wall, arranged as a membrane between a first chamber and a second chamber of a measurement cell is provided that includes, a pressure regulator, upstream from each inlet to the measurement cell, that are each associated with a respective pressure sensor. A humidifier can be used, if desired. The device further includes that can switch the flows of gas between a starting wash step and a measurement step. Each gas flow is adjusted at the exit of the respective flow regulator. A control unit operates the pressure regulators and flow regulators to keep at predetermined values the total pressure in the first chamber and second chamber with those values maintained equal to each other.
A method of measuring the transmission rate of a permeant through a container and determining shelf life of product within the container based upon loss of the permeant through the container. The method includes the steps of (i) placing a sealed container containing a perishable product and a permeant within a sealed retention chamber, (ii) periodically measuring concentration of the permeant within the headspace of the retention chamber until a substantially steady state increase in permeant concentration within the headspace is sensed, and (iii) calculating a shelf life for the sealed container by dividing an amount of permeant loss, previously established as correlating to product expiration, by the sensed steady state increase in permeant concentration.
A device that carries out a method for measuring permeability to a gas sample through a container (2) comprises an inlet duct for the gaseous carrier, in particular, nitrogen, both as inlet in the container (2) and as inlet in the chamber (1) and out of the container (2) of which permeability has to be measured. The inlet duct that exits in the container (2) comprises two ducts (11 and 8), whereas the inlet duct that exits out of the container (2) comprises two ducts (6 and 7). Such inlet ducts have an origin in common in order to allow the distribution between them of the flow (200) of gas carrier as input. An inlet duct is provided (10) for a test gas flow, such as oxygen, which ends in the duct (7) to be measured, with the gas carrier in the chamber (1). A gas-mass regulator is provided for each inlet duct (5, 4 and 3).
A system for measuring gas permeation through container walls is disclosed, wherein a pressure fluid is introduced into a container to be tested. Once the pressure fluid is introduced into the container, the pressure fluid is drawn out of the container and tested to determine the permeation characteristics of the container.
A system and method for providing a destination point with a gas having a selectable known humidity. A gas having an initial relative humidity is alternately directed in accordance with a duty cycle along a wet path effective for humidifying the gas to provide a wet gas, and a dry path effective for either maintaining the initial relative humidity of the gas or dehumidifying the gas to provide a dry gas. The wet and dry gas is blended to produce a blended gas having a selected relative humidity based upon the selected duty cycle.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Liquid analysers all for use in analaysing the proein, fat and total solid content of dairy and food products; parts and fittings for the aforesaid goods.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Liquid analysers all for use in analysing the protein, fat and total solid content of dairy and food products; parts and fittings for the aforesaid goods.
An instrument (10) for detecting and reporting the location of a leak in thin-walled hermetically sealed packaging (100) as between a seal leak and a side-wall leak. The instrument (10) includes a needle (20), a vacuum pump (40), and a means for creating at least two different steady-state differential pressure values across the packaging (100), a mass flow rate sensor (50), and at least one pressure sensor (31), a device for generating a perceptible signal (70) and a processor (60). The instrument (10) is operative for sensing the external pressure outside the packaging's (100) retention chamber, sensing the internal pressure within the retention chamber and transmitting an internal pressure signal, sensing the mass flow rate of gas pulled from the retention chamber, calculating flow rates and differential pressures thus indicating leaks.
G01M 3/32 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour récipients, p.ex. radiateurs
85.
System and method for generating a gas sample of known and adjustable relative humidity
A system and method for providing a destination point with a gas having a selectable known humidity. A gas having an initial relative humidity is alternately directed in accordance with a duty cycle along a wet path effective for humidifying the gas to provide a wet gas, and a dry path effective for either maintaining the initial relative humidity of the gas or dehumidifying the gas to provide a dry gas. The wet and dry gas is blended to produce a blended gas having a selected relative humidity based upon the selected duty cycle.
09 - Appareils et instruments scientifiques et électriques
Produits et services
computer software and hardware for enabling electronic and electrochemical devices for measuring concentrations of gases in packages to automatically calibrate the device at user defined intervals, sold as an integral component of an electronic or electrochemical device for measuring concentrations of gases in packages
87.
Instrument and method for detecting and reporting the size of leaks in hermetically sealed packaging
An instrument for detecting leaks in a hermetically sealed package. The instrument includes (i) a hollow needle, (ii) a mass flow rate sensor in sealed fluid communication with the lumen defined by the hollow needle, and (iii) a vacuum pump. The vacuum pump is in fluid communication with the lumen defined by the needle for evacuating gas from the hermetically sealed package, and in fluid communication with the mass flow rate sensor for directing mass flow from the evacuated package into operable contact with the mass flow rate sensor so as to permit sensing of any continuing mass flow from the evacuated package. The instrument may further include an oxygen sensor, also in sealed fluid communication with the lumen defined by the hollow needle for analyzing the oxygen concentration of the gas within the hermetically sealed package.
G01M 3/32 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour récipients, p.ex. radiateurs
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Total hydrocarbon analyzers; total volatile organic carbon analyzers; methane and nonmethane analyzers; total carbon analyzers; gas chromatography apparatus; photoionization sensors for measuring trace levels of volatile organic compounds; gas chromatograph permeation calibrators; and multipoint samplers for gas chromatographs and gas analyzers.
89.
Instrument for accurately measuring mass flow rate of a fluid pumped from a hermetically sealed container
An instrument for accurately measuring mass flow rate of a fluid pumped from a hermetically sealed container, through attainment of a steady state mass flow rate, having a check valve positioned between a vacuum pump and a mass flow rate sensor.
G01M 3/34 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour récipients, p.ex. radiateurs en testant si le vide peut être maintenu dans des récipients, p.ex. dans les machines à tester les boîtes de conserve
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
09 - Appareils et instruments scientifiques et électriques
Produits et services
Total hydrocarbon analyzers; total volatile organic carbon analyzers; methane and nonmethane analyzers; total carbon analyzers; gas chromatography apparatus; photoionization sensors for measuring trace levels of volatile organic compounds; gas chromatograph permeation calibrators; and multipoint samplers for gas chromatographs and gas analyzers.
An instrument for detecting leaks in a hermetically sealed package. The instrument includes (i) a hollow needle, (ii) a mass flow rate sensor in sealed fluid communication with the lumen defined by the hollow needle, and (iii) a vacuum pump. The vacuum pump is in fluid communication with the lumen defined by the needle for evacuating gas from the hermetically sealed package, and in fluid communication with the mass flow rate sensor for directing mass flow from the evacuated package into operable contact with the mass flow rate sensor so as to permit sensing of any continuing mass flow from the evacuated package. The instrument may further include an oxygen sensor in sealed fluid communication with the lumen defined by the hollow needle for analyzing the oxygen concentration of the gas within the hermetically sealed package.
G01M 3/34 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour récipients, p.ex. radiateurs en testant si le vide peut être maintenu dans des récipients, p.ex. dans les machines à tester les boîtes de conserve
09 - Appareils et instruments scientifiques et électriques
Produits et services
Leakage testing apparatus for flexible and semi-rigid packages; seal testing apparatus for flexible and semi-rigid packages; instrument for measuring water vapor transmission, namely, water vapor transmission rate analyzer; electronic and electrochemical devices for measuring concentrations of gases in flexible packages.
09 - Appareils et instruments scientifiques et électriques
Produits et services
total hydrocarbon analyzers; total volatile organic carbon analyzers; methane and nonmethane analyzers; total carbon analyzers; gas chromatography apparatus; photoionization sensors for measuring trace levels of volatile organic compounds; gas chromatograph permeation calibrators; and multipoint samplers for gas chromatographs and gas analyzers
09 - Appareils et instruments scientifiques et électriques
Produits et services
computer software for enabling gas transmission rate testing instruments to provide user-defined and standard test conditions for initiating a test, sold as an integral component of a gas transmission rate testing instrument
A needle valve with a hollow needle effective for permitting a portion of the fluid passing through the valve to flow throughout the valve and exit through any leaks in the valve, whereby any environmental fluid within the valve is displaced by the fluid passing through the valve.
An instrument and method for measuring the volume of a hermetically sealed, variable volume, pressure conforming container. The instrument includes a needle, a vacuum pump, a mass flow rate sensor and an integrator. The needle has a lumen operable for sealingly perforating a container and thereby placing the lumen of the needle in fluid communication with a retention chamber defined by the container. The vacuum pump evacuates the gaseous content from the retention chamber through the lumen defined by the needle and past a mass flow rate sensor for sensing mass flow rates pulled through the lumen and transmitting corresponding mass flow rate signals over time to the integrator. The integrator is programmed to integrate the received mass flow rate signals over time through achievement of an evacuated retention chamber to generate a total mass value, and calculate a volume from the total mass value employing the Ideal Gas Law.
G01M 3/34 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour récipients, p.ex. radiateurs en testant si le vide peut être maintenu dans des récipients, p.ex. dans les machines à tester les boîtes de conserve
G01F 1/00 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu
B65B 31/00 - Emballage d'objets ou de matériaux dans des conditions atmosphériques ou gazeuses particulières; Addition de propergols à des réceptacles pour aérosols
