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7601537 |
Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of same
In order to check the hermeticity of a closed cavity of at least one micrometric component, said component includes a structure made over or in one portion of a substrate, a cap fixed to one zone...
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7597855 |
Adaptive membrane structure
The present invention relates to a porous adaptive membrane structure that has movable membranes. The structure can be made to change its gas, liquid or particulate permeability in response to...
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7592178 |
Filter integrity tester
An apparatus and method for testing the integrity of a filter under humid conditions is provided. The apparatus includes an injection assembly which is located on a first side of the filter and a...
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7572636 |
Method of detecting a leakage in an apparatus
The invention relates to a method of determining the cleanness of an apparatus comprising the steps of treating the interior of the apparatus with a solution comprising permanganate so as to cause...
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7534615 |
Process for detecting leaks in sealed packages
The present invention relates to a process for detecting a leak in a package. The process comprises preparing a package by covering at least a portion of an O 2 -sensitive product with a multilayer...
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7253002 |
Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same
A chemical storage and dispensing vessel having associated therewith a colorimetric member that is effective to change color in exposure to leakage of a gas contained in the vessel. The...
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7213534 |
Device and method for detection/indication of liquid leakage
An improved device for the detection of leakage is achieved when the device includes at least two components, of which at least one is capable of migrating with the liquid within the carrier, and...
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7192459 |
Addition of odorants to gases for leak detection
An apparatus for dispensing an odorant to a fluid in a vessel having an interior volume containing the fluid includes at least one odorant material and an odorant-permeable material. The at least...
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7153532 |
Sensing gaseous substances using metal complexes
A metal co-ordinated complex in a medium, e.g. a palladium-fluorophore, may be used to detect food spoilage products by the release of a detectable component by preferential binding of the metal...
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7148066 |
Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs
Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous...
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7112443 |
High throughput permeability testing of materials libraries
A library of material samples is screened for properties such as permeability. A library of material samples is provided. A stimulus such as an exposure to a permeate fluid is provided to each...
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7105350 |
Closure integrity test method for hot-fill bottling operation
A method for evaluating the integrity of the closure on a hot-filled container in which the hot-filled container is subjected to a pressurized spray of cooling medium, including the step of...
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6912924 |
Testing apparatus and method
An apparatus is provided for testing equipment located in a local environment by presenting a detectable indicator gas therein. The apparatus has a container portion, a chemical substance stored in...
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6861259 |
Method of using a cartridge for containing a specimen sample for optical analysis
A cartridge for holding a test specimen with an extremely small volume. The cartridge has a test chamber and a vestibule through which the test fluids are inserted into the test chamber. The...
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6820464 |
Odorized seals for the detection of gas leak
An apparatus for detecting a leak of a fluid from a system for storing and/or transporting a volume of the fluid includes an odorant material. The system includes at least one vessel and at least...
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6696296 |
Leak detector for sealed optical devices
This invention discloses a method for detecting a leak from a sealed optical device. The method includes steps of: A) injecting a target gas with no performance interference to the sealed optical...
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6627443 |
Colored composition
The present invention relates to new color compositions which are especially suitable to be used in oxygen indicators. The compositions comprise iron(II), an agent containing pyrogallol entities...
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6555378 |
Method for checking the state of the gas fill in the insulating cavity of an insulating glass pane, and insulating glass pane
An insulating glass pane ( 1 ) has at least two glass plates ( 10, 12 ) which are spaced apart from one another, and an edge joining strip ( 14 ) which surrounds and joins together the glass plates...
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6521459 |
Method and apparatus for testing the acidity of a lubricant in a climate control system
A test kit for testing acidity of a lubricant in a climate control system containing a naphthalimide dye contains an aqueous solution having a salt and a known amount of hydroxide and an organic...
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6479294 |
Method for determining container leakage
A method and apparatus suitable for use in high volume production for determining leakage from a nominally sealed product container, e.g., a battery case. The method and apparatus first functions...
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6479018 |
Detection of a gaseous substance emanating from a layer of polymeric composition
Detection of an evolving or diffusing gaseous substance emanating from an irradiated or thermolyzed layer of polymeric composition in semiconductor processing or similar processes is disclosed. The...
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6323032 |
Sterilizer testing systems
A sterilant challenge device, for use in testing the efficiency of the removal stage of a sterilization cycle in a sterilizer. In a preferred embodiment, the device includes a tube that is closed...
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6170320 |
Method of introducing an additive into a fluid system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection
An additive is introduced into a fluid system and dissolved in a carrier fluid which is immiscible or slightly miscible in the fluid system, wherein the carrier fluid is subsequently removed from...
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6063632 |
Water leak detection
A method and device for detecting water leaks is disclosed. The method and device comprise an odorant in a water soluble barrier. The odorant and water soluble barrier can be contained in a housing...
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6060318 |
Tracing of process additives in industrial ceramics applications
The present invention provides for an improved method for monitoring the concentration of molecules and chemical treatment agents in ceramic slurries and powders.
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6043096 |
Device and method for the determination of water
A test device and method is described for directly determining the liquid phase water content of organic solvents and indirectly the liquid phase water content of solids. The device and method...
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5976881 |
Device and method for detecting chemical breakthrough of protective clothing
A detection device for testing gloves or other protective clothing or equipment for breakthrough by a contaminant includes a pad carrying a reagent which is responsive to the contaminant for...
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5792661 |
Method of detecting leaks in sealed containers
An apparatus and method for detecting a leak by mixing an amount of odorant ith the contents of a sealed container. An amount of odorant having a detectable odor is mixed with the contents of a...
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5759857 |
Leak detection using chemical markers
Leakage in a heat exchanger between two liquids which are in indirect heat exchange relationship is detected by marking one of the two liquids with a colorless chemical marker and detecting it in...
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5709994 |
Photoactivatable chemiluminescent matrices
Methods for labeling a material are disclosed. The methods comprise combining with the material (a) a photosensitizer capable upon irradiation of generating singlet oxygen and (b) a...
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5658798 |
Detection of process components in food process streams by fluorescence
The invention is a method of monitoring for the presence of certain constituents of food processing streams by measurement of fluorescence. The constituent monitored can be a fluorescing impurity...
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5493899 |
Method for testing integrity of elastomeric protective barriers
A method of testing an elastomeric personal barrier which involves positioning the barrier over a mold in the shape of the barrier, the mold being translucent or of a contrasting color to the...
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5491092 |
Sterilizer test method and apparatus
The operation of a steam sterilizer is monitored by a test unit and a controller which together comprise a system which can be operated in two principal method schemes: (1) the testing for...
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5479359 |
Automated data collection system for fugitive emission sources
An Automated data collection system for fugitive emission sources includes a handheld data terminal formed as a single portable package or integral unit. The data terminal is connected to an...
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5447688 |
Detector, and method of using same
A detector, which is source specific, for detecting a fugitive emission from a component containing a gaseous or volatile analyte, and is adaptable for adjacent disposition to the component. The...
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5439648 |
Gas indicator for a package
A gas indicator (11) for a modified atmosphere food package (19) comprises a series of strips (12, 13, 14, 15, 16) which progressively change colour as the proportion of carbon dioxide in the...
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5389302 |
Chemiluminescent dye penetrant process and composition
A chemiluminescent dye penetrant composition is provided for detecting cracks and other defects in the surface of an object, which comprises a carrier, preferably in the form of a nonionic...
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5356594 |
Portable volatile organic compound monitoring system
A portable (handheld) volatile organic compound monitoring system for monitoring, for fugitive emissions, a device that includes a coded identification tag. The system includes a housing, a tag...
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5332548 |
Analytical device and method of using same
The invention provides an analytical device, and method of using same, for detecting a gaseous or volatile analyte and adaptable to be applied directly to the surface of a solid material from which...
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5322797 |
Method for detecting vapor and liquid reactants
A paint or coating composition and method for detecting vapor or liquid reactants, such as ammonia. The composition is composed of ethyl cellulose as a binder, a filler, such as amorphous silica,...
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5290702 |
Method of detecting and mapping organic solvent-containing materials on a surface
Chromogenic solvent detectors are used to detect and map the presence of organic solvent-containing materials on a surface. The detector need only be applied to the surface to be tested. When...
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5271901 |
Device having a diffusion sensor hose for detecting a leak
A device for detecting a medium includes a sensor hose to be laid at a medium to be detected. A material is disposed at least in the vicinity of the sensor hose. The material reacts when in contact...
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5264368 |
Hydrocarbon leak sensor
Method and apparatus for detecting and/or monitoring the presence of hydrocarbons in a fluid medium at a remote location, by sensing the presence of hydrocarbon-based fluid in the fluid medium in...
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5242805 |
Long wavelength lipophilic fluorogenic glycosidase substrates
The claimed invention relates to a substrate for evaluating glycosidic enzymes comprising a resorufin derivative of the general formula: ##STR1## wherein Gly is a carbohydrate bonded to resorufin...
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5128269 |
Method for monitoring unusual signs in gas-charged apparatus
A method for monitoring unusual signs such as partial heatings and partial electric discharges in an apparatus to be monitored, in which a sealed gas is enclosed into a tank containing the...
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5073482 |
Elastic barrier permeability testing device and method of use
A device for testing an elastic membrane for permeability ot submicroscopic particles. The device has a first chamber to contain the particles in a fluid medium; a second chamber to contain a...
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5046353 |
Underground pipe leak detection system
An apparatus and method for detecting leaks in underground fluid pipes. Detection of a leak is achieved by introducing a liquid phase tracer into the fluid within the underground pipe, which...
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4919892 |
Apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream
An apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream in a sewage system. The apparatus includes a disposable detector which floats in the effluent stream...
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4912031 |
Method for detecting carcinomatous and precarcinomatous colo-rectal disease
A method for distinguishing between carcinomatous and/or precarcinomatous colo-rectal disease and histologically similar conditions due to diseases that are not carcinomatous or precarcinomatous...
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4910803 |
Apparel having a breach indicator
Disclosed is a composite material adaptable to form bodily fluid protection apparel that can alert a wearer that a breach in the apparel has occurred. The apparel comprises a first layer impervious...
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