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7383826 |
Fuel vapor treatment apparatus, system having the same, method for operating the same
A fuel vapor treatment apparatus connects with a fuel tank, which produces fuel vapor to be purged into an intake passage of an internal combustion engine through a purge passage. The fuel vapor...
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7383720 |
Method and device for testing for leaks
A method and a device for testing whether planar material, in particular films, are leakproof. The planar material is continuously conveyed in a continuous process through a test chamber which has...
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7353691 |
High performance generator stator leak monitoring system
A method of measuring hydrogen leakage from a generator core into generator coolant water flowing through the generator stator windings comprising the steps of: providing a core hydrogen gas...
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7343783 |
Portable multi-function system for testing protective devices
A multi-function device for testing masks such as NBC masks used in civilian and military applications. In its preferred form, the device is self-contained and can be readily transported to field...
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7334490 |
Method and apparatus for v-bank filter bed scanning
Embodiments of the invention generally related to a method and apparatus foe scanning a v-bank filter. In one embodiment, an apparatus for scanning a v-bank filter includes a hollow body having...
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7331216 |
Leak rate measuring device
A leak rate measuring device contains a strip spectrometer in which the ion path of the respective gas is influenced by at least one variable influencing quantity. When a gas having a predetermined...
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7320243 |
Methods and apparatus for detection of large leaks in sealed articles
Methods and apparatus are provided for detection of large leaks in scaled articles. Apparatus for leak detection includes a first sealable chamber configured to receive a test piece containing a...
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7299681 |
Method and system for detecting leak in electronic devices
The methods and systems for testing electronic devices for leak detection are provided. In one method of detecting a leak in a sealed package, a sealed package is placed in a test gas environment,...
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7290439 |
Methods and apparatus for leak detection by the accumulation method
Methods and apparatus are provided for leak detection by the accumulation method. The apparatus includes a sealable chamber ( 10 ) configured to receive a test piece ( 12 ) that, while in the...
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7289863 |
System and method for electronic diagnostics of a process vacuum environment
In one embodiment according to the invention, there is disclosed a method of identifying a source of a vacuum quality problem in a vacuum environment associated with a tool. The method comprises...
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7278292 |
Method of assessing the product shelf life in a package
A method for the assessment of the product shelf life in a package, and a device for accelerating the permeation of a test gas into a package. To significantly reduce the test time and to...
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7257990 |
Accelerated ultralow moisture permeation measurement
By measuring ultralow moisture permeation through a barrier material sample at a temperature substantially above ambient, definitive values are produced on an accelerated basis that can be used to...
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7254989 |
Leak detecting device
A leak detecting device of the counterflow type includes a high vacuum pump having an inlet connected to a mass spectrometer. In addition, a prevacuum pump is provided having an inlet connected to...
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7251984 |
Refrigerant with leak detection dye concentrate
A container including a mixture of refrigerant and leak detection dye medium is disclosed for adding to an air conditioning or refrigeration system. The container includes a storage container...
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7240536 |
Test-gas leak detector
A test-gas leak detector ( 1 ) includes a connection ( 27 ) for a device under test, a sniffer, or a leak detector chamber, a high-vacuum pump ( 2 ), a test-gas detector ( 5 ) that is connected on...
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7204127 |
Method and apparatus for large leak testing
Methods and apparatus for large leak testing are provided. The apparatus includes a test line to receive a sample containing a trace gas, a mass spectrometer to detect the trace gas and having an...
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7201039 |
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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7197914 |
Method and apparatus for detecting and locating leak holes in a pipeline using tracers
A method and an apparatus for finding the location of one or more holes in a fluid flow system such as pipe, duct, or conduit using one or more tracers that interact with or can be chemically or...
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7189066 |
Light gas vacuum pumping system
A vacuum pumping system includes a primary vacuum pump having an inlet for coupling to a system, and a secondary vacuum pump having an inlet coupled to the exhaust of the primary vacuum pump. The...
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7186286 |
Filter housing assembly with leak testable aerosol injection port
A filter housing assembly having a leak testable aerosol injection port is a conduit coupled to an aerosol injection selectively traps aerosol port of the filter housing assembly after...
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7181954 |
Refrigerant leak detector compressor
A motor control unit 107 that controls a drive device 100 of a brushless DC motor 101 of a compressor 12 in a refrigerator 1 determines that a flammable refrigerant is not leaking when it...
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7178385 |
Method and apparatus for detecting leaks
The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the present of a tracer gas...
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7165443 |
Vacuum leakage detecting device for use in semiconductor manufacturing system
A vacuum leakage detecting device includes a process chamber for performing processes, a fluid valve, and a dry pump. The device further includes a helium gas sensor to detect helium gas in order...
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7160590 |
Packaging including a composite web comprising porous layer
A multilayer web article, including a first layer of a porous material, e.g., Tyvek® film, and a second layer overlying and sealed to the first layer. The second layer is non-porous to passage of...
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7159449 |
Method of detecting leakage in a heat exchanger
A method is provided for detecting leakage in a heat exchanger by circulating a tracer under pressure from the first side of said heat exchanger to the second side and then from the second side to...
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7156976 |
Method for detecting and localizing leaks and suitable device for carrying out the method
The invention relates to a method and a device for detecting leaks in the wall of a test object, container or similar, by measuring and evaluating changes that occur in a partial gas pressure. The...
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7150180 |
Detection of leaks in heat exchangers
A method for detection of leaks in a plate pack heat exchanger having respective discrete first and second flow paths in mutual thermal contract comprises connecting a helium detector probe at one...
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7140232 |
Method and apparatus for multiple gas sensor
A method and apparatus includes filter for removing a non-tracer gas from detection system and control unit for detecting the presence a low concentration tracer gas in the atmosphere.
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7134322 |
Locating one or more leaks in a power generating system while the power generating system is online
In one embodiment, a method for locating one or more leaks in a power generating system while the power generating system is online includes adding a detectable gas to a cooling system of a power...
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7114371 |
Integration of atmospheric intrusion sensors in electronic component packages
An apparatus for detecting an intrusion of an environmental substance into an environmentally sealed electronic components package. The electronic components package generally includes a plastic...
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7107821 |
Leak indicator with test leak and test leak for integration into a leak indicator
A leak indicator including a housing that houses components of the indicator as well as a test leak, and test leaks that are suitable for integration into a leak indicator.
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7104114 |
Electronic equipment and fuel cell for the same
An electronic equipment is provided with a fluid device using fluid including an additive, a main body comprising an installation site for installation of the fluid device and a detection part...
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7089783 |
Trouble shooting accelerator system for implantable drug delivery pumps
An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet...
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7082813 |
Test gas leakage detector
A test gas leakage detector includes an inlet for gases to be analyzed for the presence of a test gas, a test gas detector and a first high vacuum pump connected to the test gas detector. An...
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7071284 |
Process for the preparation of polycarbonates
An improvement in the continuous two-phase interfacial condensation process for preparing polycarbonate is disclosed. In the process that entails at least one diphenol, phosgene, at least one chain...
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7062954 |
Leak detector
A leak detector comprises a high vacuum envelope connected with a vacuum pump to bring the vacuum envelope to a pressure sensibly lower than ambient pressure. At least a portion of the envelope is...
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7051578 |
Method and apparatus for detecting a gas
The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the presence of a tracer gas...
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7051577 |
Multi-functional leak detection instrument along with sensor mounting assembly and methodology utilizing the same
A leak detection instrument may comprise a housing, a gas sensor supported relative to the housing, an AE sensor for generating a sound detection input signal upon exposure to gas leakage,...
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7043964 |
Method and system for detecting leaks in a plugged honeycomb structure
A method for detecting leaks in a plugged honeycomb structure includes directing a gas at a first end face of the honeycomb structure at a temperature that is different from a temperature of the...
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7017391 |
Method for measuring the leaktightness of sealed containers
The present invention relates to a method for reliably and rapidly checking the leaktightness of sealed containers or their leakage rate by the action of a gas thereon. The method according to the...
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7012678 |
Inspection method and inspection apparatus for detecting defects
An inspection method for detecting a defect in a test object. A particulate is generated, then the generated particulate is introduced into a test object. Subsequently, light having high...
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7004012 |
Method of estimating thickness of oxide layer
Embodiments of the present invention are directed to providing a leakage detecting method for use in an oxidizing system of forming an oxide layer so as to shorten leakage detecting time period. In...
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6966213 |
Rapid method for detecting leaks of hydraulic fluids in production plants
A method of detecting and compensating for leakage of hydraulic fluids in a production plant, is described and claimed. The method requires two tracer materials, each with its own separate and...
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6964191 |
Apparatus and technique for measuring permeability and permeant sorption
The invention is concerned with apparatus and methods for measuring package permeability and/or permeant sorption. The apparatus includes a housing defining an inner sealed chamber that is...
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6959586 |
Evaluating data handling devices by means of a marker impurity
The present invention is a method for evaluating a multiplicity of data handling devices each having a sealed chamber with several interior surfaces. It uses an impurity chamber containing...
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6955076 |
Foil leak detection chamber
The invention relates to a chamber for the detection of leaks on foils ( 1 ). Said chamber comprises two frames ( 2, 3 ) which are connected together in an articulated manner, foils ( 4, 5 ) which...
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6945092 |
Method for operating a film leak indicator and a corresponding film leak indicator for carrying out said method
The invention relates to a method for operating a film leak indicator ( 1 ) comprising two films ( 5, 6 ), which are each tensioned inside a frame ( 3, 4 ) and which delimit a testing space ( 80 )...
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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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6907771 |
Leak detector
A leak detecting apparatus is provided that tests for leaks in closed systems such as the air intake system of an internal combustion engine. The system connects to a conventional air supply that...
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6907770 |
Test device for filter systems
A test device ( 10 ) for filter systems, including a pneumatic unit ( 12 ), a control unit ( 14 ) for controlling the pneumatic unit ( 12 ), and a data processing unit ( 16 ), in which the...
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