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7387012 |
Leak detection sensor system and method for double carcass hose
A fluid leak detection system mounts to a hose line segment of the type comprising at least an inner carcass and an outer containment carcass separated from the inner carcass by a collection space....
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7353692 |
Leakage tester
An inexpensive and compact leakage tester is provided, which performs a leakage determination on a measurement object automatically and with high accuracy. The leakage tester of the present...
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7350512 |
Method of validating a diagnostic purge valve leak detection test
A system and method for evaluating the integrity of a leak detection test for a purge valve of a fuel system in a vehicle reduces or eliminates false failures. The method is executed on an engine...
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7347083 |
System and method for detecting a leak in a hydraulic fluid system
Methods, systems, and articles of manufacture consistent with the present invention provide for detecting a leak in a hydraulic fluid system having a reservoir and a conduit operatively connected...
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7347082 |
Method and apparatus for testing vehicle fuel system integrity
A method and apparatus for measuring leakage of a vehicle fuel system includes providing an apparatus having a gas source, a pressure meter and a reference orifice and connecting the apparatus to...
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7343904 |
Canister close valve device
Disclosed herein is a canister close valve device for opening or closing a passage of a canister collecting evaporation gas evaporated in a fuel tank and a passage communicating with the...
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7340943 |
Method of detecting connection of test port on an endoscope
A method detects proper connection of a test connection to an endoscope port which leads to an interior space beneath a flexible sheath on an endoscope. Both the interior space and an air buffer...
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7337652 |
Fuel system with leak location diagnostic features and component for same
A leak diagnostic strategy for an engine equipped with a high pressure common rail fuel system includes a plurality of separate leak lines. Each of the leak lines is constructed and positioned to...
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7334456 |
Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines
An underground storage system includes a primary containment unit and a secondary containment unit arranged to sealingly encompass the primary containment unit. The underground storage system...
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7334455 |
Leak detector of liquid in tank
A leak detector comprising a sensor unit including a measuring slim-tube ( 13 b ) via the lower end of which a liquid in a tank is led in/out, a measuring tube ( 17 ) connected to the upper end...
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7322228 |
Evaluating the leaktightness of a device for storing fuel gas under high pressure
The system for evaluating leaktightness is applied to a gas storage device for storing high pressure fuel gas delivered from a filling station via a filler hose connected to the gas storage device,...
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7322227 |
Tank container with electronic monitoring device
A tank container with electronic monitoring device includes a tank barrel and a container frame supporting the same. The tank barrel includes a valve assembly and a valve assembly protection box....
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7322225 |
Adhesion promotion vacuum monitoring system for photo resist coaters
An apparatus and method for monitoring pressure within an adhesion promotion unit is provided. The apparatus in one embodiment includes a chamber configured to receive and heat a semiconductor...
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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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7290440 |
Leak tester
A leak tester which detects leakage of a gas from a measured object, the leak tester including a source of a pressurized gas which supplies the pressurized gas, a differential pressure detecting...
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7281413 |
Acoustic method for determining the viscosity and/or surface tension of a liquid
The present invention comprises a noncontact method for measuring viscosity and/or surface tension information of a liquid in a liquid containment structure. The steps of the method include...
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7275417 |
Fueling system vapor recovery and containment performance monitor and method of operation thereof
A method and apparatus for monitoring and determining fuel vapor recovery performance is disclosed. The dispensing of liquid fuel into a tank by a conventional gas pump nozzle naturally displaces a...
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7266993 |
Container leak detection apparatus and method
An apparatus and method for testing a container as to leakage and defects. The apparatus is especially useful for testing plastic bottles because it does not contact one or more of the bottle sides...
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7229233 |
Double walled containment sumps
A double walled riser sump has an annular space between the two walls. The provision of the annular space provides for monitoring the integrity of the two walls of the sump. The two walls of the...
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7219535 |
Leakage diagnosis apparatus for fuel vapor purge system and method thereof
In a fuel vapor purge system, a blocked diagnosis zone is pressurized by an air pump, a pressure in the diagnosis zone at the time when the diagnosis zone is pressurized, and an occurrence of...
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7216530 |
Fluid containment element leak detection apparatus and method
The invention may be used for detecting fluid leaks in a fluid containment element having a primary element enclosed in a secondary element. A fluid container may have a reservoir with an...
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7210336 |
Gas link leak evacuation and monitoring system
An apparatus and method for evacuating gas from the soil surrounding a leaking gas conduit utilizes non-sparking and static dissipating components to reduce the risk of an explosion. The evacuation...
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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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7174773 |
Leak-testing technique for differential pressure sensor array
A leak-testing technique and apparatus for differential pressure sensor arrays is provided. A reference pressure sensor array is provided, wherein a seal is disposed between the reference pressure...
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7174772 |
System and method for leak detection
A leak testing control assembly for a leak testing system of a type that cooperates with a test part interface that is coupled with a test part. In a broad aspect the leak testing control assembly...
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7143634 |
Portable fuel storage tank leak detection system
A portable fuel storage tank leak detection system for detecting fuel leaks from a fuel storage tank at a leak rate of 0.1 gallons per hour. The leak detection system provides for a probability of...
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7111497 |
Leak detection apparatus for lined vessels and method of use
A leak detection apparatus detects leaks or premature wearing in a lined fluid filled vessel. A leak detection apparatus comprises a current density meter, a power supply, and a probe. The probe is...
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7107823 |
Package seal inspecting apparatus, and method for inspecting package seals
A package inspection apparatus is provided, and includes a conveyor for transporting a package, a pressure unit for applying a compressive force to the package, a tracer movable over the upper...
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7104278 |
Leak container for fuel dispenser
A leak collection chamber is provided inside the housing of a fuel dispenser. The leak collection chamber collects any leaked fuel from fuel handling components inside the fuel dispenser so that...
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7076994 |
Power head secondary containment leak prevention and detection system and method
A submersible turbine pump includes a power head enclosed in a casing. A vacuum source associated with the submersible turbine pump draws a vacuum in the interior space of the casing. A pressure...
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7076993 |
Leakage detection method for a pressurised medical appliance
A method for detecting leakage in a pressurised medical appliance prior to normal operation, the system including an air compressor and an inflatable bag or bladder coupled to the air compressor...
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7051579 |
Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines
An underground storage system includes a primary containment unit and a secondary containment unit arranged to sealingly encompass the primary containment unit. The underground storage system...
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7043966 |
Quality control systems for detecting leaks of gaseous or liquid materials from closed containers
A system for testing systems which are in turn used to test the leaktightness of a hollow body is suggested. Instead of the hollow body, a test body ( 2 ) is placed in the system which generates a...
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7043965 |
Double-walled containment enclosure
A containment enclosure system at least a portion of which is double-walled. An exemplary system of the invention provides enhanced leak protection by monitoring the space within the double-walled...
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7013712 |
Method for testing containers, use of the method, and a testing device
A method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the...
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7013710 |
Open package test fixture
The test fixture of the present invention comprises a pair of clamping bars/jaws, matched to accommodate an inflation port, or a pressure supply/sensing nozzle. The clamping jaws further comprise a...
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7011077 |
Fuel system and method for managing fuel vapor pressure with a flow-through diaphragm
A fuel system and a method of method of managing fuel vapor pressure in the fuel system. The fuel system a fuel tank having a headspace, a fuel vapor collection canister in fluid communication with...
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7010961 |
Power head secondary containment leak prevention and detection system and method
A submersible turbine pump includes a power head enclosed in a casing. A vacuum source associated with the submersible turbine pump draws a vacuum in the interior space of the casing. A pressure...
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7004014 |
Apparatus, system and method of establishing a test threshold for a fuel vapor leak detection system
An apparatus, system and method of establishing a threshold for a leak detection test that is performed on a headspace of a fuel system. A fuel vapor pressure management apparatus includes a...
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7000467 |
Method, system and program product for monitoring rate of volume change of coolant within a cooling system
Method, system and program product are provided for monitoring coolant within a cooling system designed to provide system coolant to one or more electronics subsystems. The monitoring technique...
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6978661 |
Secondary containment leak prevention and detection system and method in fuel dispenser
A vacuum generator that is coupled to a double-walled fuel supply piping internal to a fuel dispenser that carries the fuel from the underground storage tank to the hose and nozzle of the fuel...
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6966216 |
Leakage detecting device for sealed packages
The object of this invention is to provide a leakage-detecting device for sealed packages that is capable of performing detection continuously for all sealed packages when performing leakage...
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6966215 |
Failure diagnosis method and failure diagnosis device of evaporated fuel treating unit
An apparatus detects leak in a fuel vapor treatment system which is referred to as an evaporation system. The apparatus measures a required time T 2 that is required for decreasing pressure in the...
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6966214 |
Leakage diagnosis apparatus for fuel vapor purge system and method thereof
In a fuel vapor purge system, an occurrence of leakage in a diagnosis zone is diagnosed, based on data indicating a pressure rise characteristic in the diagnosis zone for when the diagnosis zone is...
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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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6953027 |
Flow-through diaphragm for a fuel vapor pressure management apparatus
A fuel vapor pressure management apparatus for a fuel system performs leak detection on a headspace of the fuel system, performs excess negative pressure relief of the headspace, and performs...
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6948355 |
In-use rate based calculation for a fuel vapor pressure management apparatus
A system and method of evaluating a leak detection test that is performed on a headspace of a fuel system. The system includes a fuel vapor pressure management apparatus, an algorithm that...
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6925855 |
Fuel filling detection
A leak detection system for a vehicle includes a fuel system and a controller. The controller communicates with the fuel system to detect a fuel filling event. The controller initiates a vapor leak...
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6920778 |
Device for detecting leakage of liquid in tank
A device placed in a tank and used for detecting a leakage of liquid in the tank. Vertical measurement tube passages ( 10, 14 ) into which the liquid in the tank is introduced have a measurement...
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6901787 |
Method of testing the pressure integrity of a tank
A method of testing the pressure integrity of a tank containing hydrocarbon in liquid and gaseous phase and its associated pipework and valves, the tank having an inlet for the supply of liquid...
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