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8176770 |
Sniffer leak detector
A sniffing leak detector which comprises a mass spectrometer, a turbomolecular pump and a forevacuum pump. In case that the sniffing hose with the hand-operated sniffing probe becomes detached from...
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8171773 |
Sniffing leak detector
To achieve a large measurement range from small up to larger leakage rates, a switchover from normal operation to gross operation occurs. In gross operation, the sucked-in gas flow is separated by...
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8147757 |
Filter with memory, communication and concentration sensor
The present invention describes a system and method for accurately measuring the concentration of a substance within a filter housing. A concentration sensor and a communications device are coupled...
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8141433 |
Leak detector
A method of measuring the gas flow of an incondensable gas in a flowing mixture of said incondensable gas and a condensable gas comprising the steps of calibrating a leak detector; injecting a...
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8137983 |
Method of maintaining a protein concentration at a tangential flow filter
The present invention describes a system and method for accurately measuring the concentration of a substance within a filter housing. A concentration sensor and a communications device are coupled...
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8117886 |
Leak detector with a leak detector testing device
A leak detector comprising a base appliance provided with a gas detector, a vacuum pump, and a control device. A sniffer probe is connected to the base appliance. A test leak device containing the...
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8087286 |
Method for checking the permeability rate of a closed container
In a method for checking the permeability rate of a closed container (3) with respect to a medium, in particular for checking the permeability rate of a film-type container for accommodating a film...
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8084259 |
Method of insuring the integrity of a filtering element
The present invention describes a system for accurately measuring the concentration of a substance within a filter housing. A concentration sensor and a communications device are coupled so as to...
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8074492 |
Method and apparatus for the detection of leaks
Disclosed is a method for detecting a leak gas in a flushing device (10), comprising the following steps: the flushing device (10) is disposed on a part (201) that is to be tested; a flushing gas...
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8070355 |
Method of detecting leaks of fluoroolefin compositions and sensors used therefor
Disclosed are a method of detecting a leak of fluoroolefin compositions and sensors used therefor. In particular, the method is particularly useful for detecting a leak of a fluoroolefin...
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8068033 |
Method of detecting contamination in industrial process boiler systems
This invention provides a method for detecting contamination of a boiler condensate and/or a boiler feedwater in industrial fermentation processes. The method includes measuring an...
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8058070 |
Method of determining the components of a fluoroolefin composition, method of recharging a fluid system in response thereto, and sensors used therefor
Disclosed are a method of determining the components of a fluoroolefin composition, a method of recharging a fluid system in which the composition is used, and sensors used therefor. In particular,...
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8006967 |
Cradle assembly for a pressure decay leak tester
A cradle assembly for a pressure decay leak tester is provided. The assembly operatively receives a printhead integrated circuit carrier having a plurality of printing fluid paths defined therein,...
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7987699 |
Pneumatic assembly for a pressure decay tester
A pneumatic assembly for a pressure decay tester of printhead integrated circuits includes a pressurized air supply. A pneumatic clamping arrangement is in fluid communication with the pressurized...
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7987697 |
Curing bladder leak detection system for a tire press
A method of detecting a leak in a curing bladder during a tire curing process provides a curing bladder (40) and tire (42) in a tire mold structure (18). An inert tracer gas (48) is added to a...
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7980117 |
Sniffer leak detector comprising a detector with a quartz window
A sniffer leak detector comprising a detector with a quartz window, the window being selectively permeable to a tracer gas. The quartz window is located in a suction chamber that is connected to a...
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7971471 |
Quartz window gas sensor with heated membrane
The gas sensor has a selectively permeable membrane which is composed of silicon material and is provided with a heating device on the outside. The membrane closes an evacuated housing which...
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7963149 |
Method and device for determining hydraulic leakage rate in liquid-conveying sections, in particular, injection valves of internal combustion engines
A method and device for determining the hydraulic leakage rate of liquid-conveying parts, in particular injection valves for internal combustion engines, place the liquid-conveying part into a test...
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7916103 |
System and method for display device with end-of-life phenomena
Systems and methods of displaying an end-of-life image on an electronic display are disclosed. An end-of-life image is displayed on a MEMS display device in the presence of sufficient water vapor...
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7908904 |
Method for detecting the hermetic sealing of enclosed areas
This method makes it possible, with highest possible precision and without any major expense, to determine the air tightness of an enclosed space. Specifically, it introduces a method which, on...
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7905132 |
Leak testing using tracer gas permeable membrane
Leak testing using a testing chamber into which a test part may be configured for testing. The test part defines a leak test boundary to be tested. Tracer gas is introduced into a first volume on...
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7892839 |
Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of the 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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7886580 |
Heat exchanger leak testing method and apparatus
A method for detecting the presence of a leak between two fluid paths of an assembled plate heat exchanger by evacuating one or both fluid paths to a low pressure, introducing a test gas to one of...
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7874201 |
Leakage search assembly having a sniffing probe
The leakage search assembly has a main device which contains a vacuum pump and a test gas sensor, and a hand-held sniffing probe. Capillary lines which connect the sniffing probe to the basic...
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7875145 |
Method and apparatus for joining adhesive tape
An adhesive tape is supplied to a back face side of a ring frame, joined to the ring frame with a joining roller, and cut by pivoting a cutter blade along the ring frame. Subsequently, an...
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7852227 |
Synthetic smoke generator and smoke detector tester using such a generator
The present invention relates to an electrically operated device for generating synthetic smoke and also to a hazard detector tester utilizing such a device. The device comprises a collapsible...
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7841228 |
Method of detecting hydrogen sensor saturation in a hydrogen powered fuel cell
In one aspect there is disclosed a method of detecting a hydrogen leak in a fuel cell system that includes the steps of a) providing a hydrogen sensor, b) determining sensor characteristics, c)...
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7832255 |
Sealed device and leak test method and manufacturing method thereof
An inner sealing portion seals a tubular port, which is provided to a receiver that receives water, at a first location of the tubular port. An outer sealing portion seals the tubular port at a...
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7820085 |
Methods relating to molding optical lenses
A method that includes providing a cavity defined by at least a portion of a mold and a closure member attached to the portion of the mold, the portion of the mold being oriented vertically and...
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7814773 |
Reference leak
A reference leak (10) includes a first substrate (20), a second substrate (40) disposed and bonded on the first substrate, and predetermined numbers of leak channels (14) defined in at least one of...
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7814778 |
Faceplate connection assembly and method
A faceplate connection assembly and method adapted to promote detection of a missing or defective seal element. The faceplate connection includes a surface member having a pair of opposing face...
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7802461 |
Method and device for detecting leaks
In leak detection, the signal generated by a test gas is superposed by interferences which fade as the vacuum generation in a container proceeds. Depending on the negative slope of the volume...
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7802465 |
Collecting conduit, apparatus and method for leakage monitoring and leakage location
A collecting conduit for leakage monitoring and leakage location at an installation, includes a support pipe having openings. An outer surface of the support pipe is covered by a layer being...
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7779675 |
Leak indicator comprising a sniffer probe
The leak detector includes a basic device which includes a vacuum pump, a test gas sensor, and a hand-held sniffing probe. The sniffing probe is connected with the basic device via a flexible hose...
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7779528 |
Test gas leak detection using a composite membrane
A leak detector includes a leak detector inlet to receive a test gas; a vacuum pump coupled to the leak detector inlet; a test gas sensing unit connected through a passage to the leak detector...
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7743646 |
Axial flow scan testable filter system
A filter system having in-situ scan capabilities is provided. In one embodiment of the invention, the system includes a downstream probe which may be rotated to scan the field of a filter installed...
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7739926 |
Method and apparatus for v-bank filter bed scanning
Embodiments of the invention generally related to a method and apparatus for scanning a v-bank filter. In one embodiment, a method for testing a v-bank filter includes providing an aerosol...
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7739900 |
Method for testing the leakage rate of vacuum encapsulated devices
The present invention is directed to a method for testing the leakage rate of an encapsulated device comprising the step: bombing the device with a neon and/or argon atmosphere using a bombing...
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7717681 |
Leak detector comprising a vacuum apparatus
A leak detector operating according to the counterflow principle comprises a first high vacuum pump that operates in series with a primary pump. A second high vacuum pump is branched at a...
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7707871 |
Leak detection system with controlled differential pressure
A system for detecting leaks in a unit. The novel system includes a first mechanism for injecting a first gas into an interior or an exterior of the unit, a second mechanism for sampling gas from...
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7674309 |
Honeycomb filter defect detecting method and apparatus
A apparatus and method for detecting defects in a honeycomb body. In operation, the particulates emerge at an outlet end face of the honeycomb body through defects, if any, in the honeycomb walls...
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7673497 |
System, methods, and compositions for detecting and inhibiting leaks in transmission systems
System, methods, and compositions are described for detecting and inhibiting leaks of a transmission system. The composition may include one or more transmission system sealants and one or more...
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7658787 |
Exhaust filter module with mechanically positionable scan probe
Embodiments of the invention generally provide a filter module having a mechanically positionable test probe disposed therein and a method for testing a filter. In one embodiment, a filter module...
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7647818 |
Process for testing the tightness of containers
A process for testing the tightness of containers includes making available a first fluid in the container interior space that is different from a second fluid surrounding the container, creating a...
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7640791 |
Leak detecting device
A leak detecting device includes a carrying device attached to a holder to be fastened to the body of an operator. From the carrying device, a flexible capillary line extends to a sniffing probe,...
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7641809 |
Tracer-containing compositions
The present invention relates to the field of compression refrigeration and air conditioning. Specifically, the present invention relates to a tracer-containing compositions comprising...
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7640790 |
Method for operating a hydrogen test leak unit
For operating a hydrogen test leak unit including a chamber defined by a membrane, a test gas mixture of hydrogen and an added gas is used. The added gas has a permeation coefficient relative to...
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7628532 |
Apparatus and method incorporating an indicator chamber for elevated temperature pressure vessel or weld testing
In a method and system for testing the integrity of pressure vessels, or welds on flanges or the like, at elevated temperatures, a pressurized mixture of a gaseous environmentally safe composition...
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7600989 |
Leak detector comprising an inlet
A leak detector includes an inlet, a high-vacuum pump, and a test gas detector, which is connected to the entry of the high-vacuum pump. A backing pump is connected to an outlet area of the...
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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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