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7628056 |
Internal pressure testing apparatus and method for pipe
A pressure testing apparatus is provided for internally pressure testing pipe. A mandrel is secured to a frame and is adapted to receive a pipe thereon such that a gap exists between an outer...
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7624624 |
Pump assembly and method for leak detection of fluid system
A method of detecting a leak in a fluid system, which includes a switch that changes state according to pressure in the fluid system. The method includes changing pressure in the fluid system with...
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7624623 |
Instrument and method for detecting 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...
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7614282 |
Apparatus and method for testing flexible packages for defects
A method and apparatus for leak detection in flexible packages involves the location of a flexible fluid containing package ( 2 ) in a sealed chamber ( 1 ) and evacuating air from the chamber to a...
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7614283 |
Cooling system testing apparatus and methods
This invention describes apparatus for and methods of testing cooling systems. The apparatus and method can be used for, among other things, pressurizing the cooling system either to a positive...
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7610796 |
Method for adjusting specific quality characteristics and properties of pipes by means of a pressure test
The invention relates to a method for adjusting specific quality characteristics and/or properties of pipes ( 1 ) by means of a pressure test, especially for steel pipes of pipe conduits for...
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7613584 |
Methods, systems and computer program products for automatically detecting leaks in a hydrant fuel piping system
Methods, systems, and computer program products for automatically detecting leaks in a type III hydrant fuel piping system is described. In one embodiment, the method includes automatically...
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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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7594427 |
Rate-based monitoring for an engine system
Rate based monitoring includes performing test cycles on a monitored system when predetermined conditions are met. Completion of a test cycle is determined by timing a period that is at least as...
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7591285 |
Pipeline configuration for the transport of a liquid, especially petroleum
A pipeline configuration for the transport of a liquid, especially petroleum, contains a pipeline laid above ground, beneath which is disposed a sensor line for detection of a leak, extending along...
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7587929 |
Joint combined aircrew systems tester
A Joint Combined Aircrew Systems Tester (JCAST) that can be used to test aircrew integrated life support equipment currently authorized for use by aircrew members of the Air Force, Navy and Army....
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7584651 |
Procedure to diagnose a leak in the fuel tank in a fuel tank ventilation system
A method of diagnosing a fuel tank leak in a fuel tank ventilation system, comprising a fuel tank, an accumulator for fuel vapors and a fuel tank ventilation valve opening out into an intake...
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7584650 |
Methods for manufacturing unleaky closed containers and leak testing apparatus
In a leak testing apparatus and a method for manufacturing unleaky closed containers having first and second flexible wall areas with different flexibility characteristics, a biasing member is...
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7584751 |
Adapter for protective mask testing apparatus
An adapter for testing an outlet valve of a protective mask with a testing apparatus includes portions which oppose the valve and are configured to connect the valve to the tester in sufficient...
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7581426 |
Test adapter for aircraft static vent
An adapter to test the static vent of aircraft instrumentation is provided. The test adapter comprises an adapter assembly and a seal holder. The adapter assembly comprises a plurality of prongs...
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7581432 |
Systems and methods for monitoring the integrity of a tank
A conduit is connected to the interstice between an outer and inner wall of a storage tank or the liner thereof and may be used to monitor the integrity of the interstice. The conduit comprises a...
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7581433 |
Cylinder leak detector
An apparatus and method for detecting cylinder leaks in an internal combustion engine includes a hose having an end configured for communication with a spark plug hole connecting to a cylinder to...
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7578170 |
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...
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7578169 |
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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7574897 |
Device for detecting leakage of liquid in tank
A device for detecting leakage of liquid in a tank, capable of detecting the leakage at high accuracy and sensitivity for a wide range of a leakage quantity. A flow rate sensor section attached to...
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7571636 |
Detecting and reporting the location of a leak in hermetically sealed packaging
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 )...
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7570769 |
Air leak self-diagnosis for a communication device
A communication device ( 100 ) is provided with a technique ( 400 ) for self-diagnosing an air leak. The leak is determined without having to open the communication device by applying a temporary...
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7562560 |
Engine off vacuum decay method for increasing pass/fail threshold using NVLD
A technique is provided for detecting leaks in a fuel system such as an automotive fuel system. The technique complements an on-board diagnostics evaporative leak monitor that uses natural vacuum...
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7562559 |
Fuel vapor detection system for vehicles
An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off...
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7562561 |
Intake air leak determination system and method
An intake manifold air leak determination system and method for an internal combustion engine including an intake manifold fluidly connected to a plurality of cylinders of the engine and a...
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7555936 |
Hydraulic hose with integral life-sensing capability and method therefor
A system and method for predicting structural failure of a wall of a fluid containment vessel, such as a hydraulic hose or other type of pressurized conduit of types used in mobile machinery,...
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7555935 |
End-of-line zone integrity detection for a piping network in a secondary containment monitoring and leak detection system
An end-of-zone or line sensor placed at the end of a secondarily contained fuel piping(s) or network(s). The interstitial space of the piping network is coupled to a vacuum-generating source that...
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7549322 |
System and method for detecting a leak in a piping system
There is provided a system for detecting a leak in a piping system, including a monitoring unit disposed at a gateway of the piping system for indicating fluid flow, a gauging unit for gauging the...
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7536900 |
Leak detector and leak detecting system using the same
A leak detecting system includes a leak detector that detects leakage of liquid stored in a tank based on fluctuation in a level of the liquid. The leak detector includes a liquid inlet/outlet...
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7526944 |
Remote monitoring of pipelines using wireless sensor network
A wireless sensor network is installed inside pipelines using sensors and wireless transceivers that are small, low-cost, and rugged. The objective is monitoring the pipeline and recommending...
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7523644 |
Method and apparatus for verifying the integrity of a joint seal
A system for verifying the integrity of a seal comprises an elastomeric seal on either side of a metal sealing gasket. A pressure test penetration is provided into an axial channel at a position...
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7516649 |
System and method for determining duct leakage and fan flow efficiency
A system and method for determining “real time” air leakage from a duct involves an airflow meter for taking airflow measurements at the inlet and at the outlet of the duct. Also included is a...
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7519508 |
Method and system for setting and analyzing tubing target pressures for tongs
A target pressure value is determined during the learning mode. Subsequent pressure values are then compared to the target value. For example, a first connection is tightened in a conventional...
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7512460 |
Valve calibration routine
A method for calibrating a proportional solenoid valve used in the propulsion system of a windrower, wherein a programmable control module in connection with a valve and a sensor is programmed as...
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7509841 |
Flexible leak detection 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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7503205 |
Redundant vacuum source for secondary containment monitoring and leak detection system and method
A redundant vacuum-generating source system and method for generating and/or maintaining a vacuum level in a secondarily contained fuel-handling component that is monitored for leaks. The...
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7500384 |
Method for controlling the sealing of a tank on an aircraft
In a process for controlling a tank of an aircraft in flight configuration, provided with at least one filling fitting and at least one purge fitting, a detection gas supply is connected to at...
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7500381 |
Systems and methods for trace gas leak detection of large leaks at relatively high test pressures
Trace gas leak detectors and methods for trace gas leak detection of large leaks at relatively high test pressures are provided. A trace gas leak detector includes a test port to receive a sample...
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7500382 |
Detection of leaks in heat exchangers
A method for the detection of leaks in a heat exchanger having discrete flow paths for working fluid and heat exchange fluid, respectively, the method comprises introduction of a detection fluid...
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7500383 |
Method and apparatus for monitoring the integrity of components and structures
A method for monitoring the integrity of a permeable structure that is disposed in an environment containing a fluid at ambient pressure is provided. At least one cavity is formed in or on the...
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7487665 |
Method for monitoring the stay time in a restricted conduit
The disclosure relates to a method of monitoring the stay time in a restricted conduit, such as a holding tube in a heat treatment plant. A first measurement registration x of a chemical or...
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7484406 |
Abnormality determining apparatus of fuel vapor processing system
An abnormality determining apparatus of a fuel vapor processing system is provided. The system includes a canister for temporarily reserves fuel vapor generated within a fuel tank and a fuel vapor...
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7481096 |
Apparatus and method for providing a test tee
The present invention provides a test tee device for leak testing a pipe line system. In structure, the test tee device includes a tee fitting, comprising a tubular section extending between a...
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7475591 |
Methods and systems for hydrostatic testing a pipeline
A method of hydrostatic testing a selected section of a pipeline having fluid flow therethrough, including the steps of introducing into the pipeline a pig train including a leading seal pig, a...
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7472912 |
Tear-out coupling and water line
A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single...
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7472581 |
Vacuum apparatus
A leak rate measuring method measures a leak rate of a vacuum apparatus including a vacuum chamber in which an object is accommodated to be processed, a first gas exhaust pump connected to the...
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7472583 |
Evaporated fuel leakage detector for use in automotive vehicle
A detector for detecting evaporated fuel leakage from a fuel tank is connected to the fuel tank through a canister for absorbing evaporated fuel. When an engine is not in operation, air in the fuel...
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7472582 |
Leak diagnosis system and leak diagnosis method
An ECU drives a pump in a first stage at a first pumping capacity. The ECU drives the pump in a second stage after the first stage at a second pumping capacity, which is lower than the first...
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7469573 |
Methods and apparatus for determining the position of an obstruction in a passage
A method of determining the position of a blockage ( 192, 392 ) in a passage ( 15, 313 ) having a first end and a second end. The method comprises blowing a sealing device ( 200 ) into the passage...
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7461541 |
Leak detection method for a primary containment system
In one aspect the method provides for determining changes in helium concentration over time in the interstitial space between a primary vessel that is charged with helium and a secondary vessel....
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