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By Probe Gas, Vapor, Or Powder

By Probe Gas, Vapor, Or Powder patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Measuring And Testing


With Fluid Pressure > Leakage > By Probe Gas, Vapor, Or Powder



Detection device for detecting at least one fault state
09/18/14 - 20140260553 - Detection device for detecting at least one fault state includes at least one tracer unit that includes, in at least one operating state, at least one specifically added tracer substance, and at least one detection unit for detecting a portion of material that has been released from the at least...

Cable condition monitoring device
04/24/14 - 20140109655 - A cable condition monitoring device for monitoring a damaged condition of a cable including a conductor part including a plurality of element wires and an insulating material part formed on a periphery of the conductor part includes a gas feeding device configured to feed a compressed gas into the conductor...

Method and device for tightness testing
04/10/14 - 20140096595 - A method for tightness testing, wherein an evacuated test object is exposed to the external influence of a test gas and wherein a gas mixture made of a test gas withdrawn from the test object and of a carrier gas, is examined for the presence of test gas by use...

Detection apparatus for detecting leaks in an air-tight component and related detection process
04/03/14 - 20140090448 - A detection apparatus for detecting leaks in items using tracer gas. The apparatus comprises a plurality of cells which are provided so as to receive an item to be subjected to separate phases of a detection process in order to detect the leaks, and a detection system using tracer gas...

Balloon catheter apparatus for high pressure leak detection
03/27/14 - 20140083168 - An inflatable, balloon-type catheter apparatus which is conformable to fit most all intake and exhaust systems to delivery pressure (with or without smoke) to test the fluid integrity of the fluid system. The device is configured to be inserted into the canal of the intake or exhaust system and inflated...

Testing fixture and testing method
03/20/14 - 20140076034 - A testing fixture and a testing method are provided. The testing fixture is configured to be assembled to an accommodating space of an electronic device. The testing fixture has a connector configured to communicate a gas controlling apparatus. The gas controlling apparatus controls the gas pressure inside the electronic device...

Oil transporting vaporizer for a smoke generating apparatus to detect leaks in a fluid system
03/13/14 - 20140069174 - An oil transporting vaporizer for a smoke generating apparatus to generate smoke to be supplied to a closed system to be tested for leaks. In a preferred embodiment, the vaporizer includes a hollow tube that is manufactured from a high temperature, fire resistant, porous material (e.g., ceramic). The vaporizer stands...

Method and apparatus for testing the seal of a junction liner
01/16/14 - 20140013828 - A method and apparatus for testing the seal of a junction liner assembly is provided. The liner assembly includes a main liner member and a lateral liner tube extending from the main liner member. The lateral liner is attached to the main liner. To determine if there is a leak...

Upper coupler assembly and inspection method therefor
09/26/13 - 20130247652 - Upper coupler assemblies for mounting coupling devices to trailers, and methods for inspecting upper coupler assemblies. The upper coupler assemblies include a housing having first and second members that define a cavity therebetween. At least the second member has a through-hole adapted to receive a coupling device, such as a...

Leakage inspection apparatus and leakage inspection method
08/08/13 - 20130199274 - Provided are a leakage inspection apparatus and a leakage inspection method for inspecting the flow rate of leakage from a tested body disposed in a tested-body chamber 21. The leakage inspection apparatus includes liquid supplying and pressurizing means 11 for supplying a probe liquid to the inside of the tested-body...

Leak detector
08/08/13 - 20130199275 - Provided is a convenient leak detector which has high detection sensitivity and can quickly start a leak test after the start of vacuuming a test piece, without impairing the capabilities such as fast response to helium gas. The leak detector includes a mass spectrometer tube configured to detect a search...

Eptfe filter for aseptic pharmaceutical use and method of using
07/25/13 - 20130186179 - A HEPA filter which utilizes spun bond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration air handling system for installation and testing is provided. The installation and testing configuration includes the ePTFE filter with a low or ultra-low concentration of challenging aerosol in the upstream side...

High speed helium leak detection system and method
07/25/13 - 20130186180 - Improved high speed helium leak-detection system for storage tanks comprising a mobile enclosure for operation of electrical components of leak detection sensors in Class 1, Division 1, Group D hazardous locations, comprising a rapid exchange purge assembly having pressure control valves, pressure reference controller and vent, a mechanically actuated vortex-type...

Gas valve with electronic valve proving system
06/20/13 - 20130152673 - This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a valve assembly may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly. The valve assembly may include a valve...

Leak detection method and system for a high pressure automotive fuel tank
03/28/13 - 20130074583 - A vapor management system (10) includes a fuel tank (12), a canister (14), a pressure control valve (16) between the tank and canister and defining a high pressure side (34) and a low pressure side (32), a vacuum source (18), a purge valve (19) between the canister and vacuum source,...

Non-destructive method for testing the seal of an electrolyte of an electrochemical cell
03/14/13 - 20130061661 - A method for testing a seal of a part that includes an electrolyte of an electrochemical cell, the method including: forming a closed cavity delimited by a first outer surface of the part including the electrolyte to be tested; contacting a second outer surface of the part, opposite the first...

Leak testing method and leak testing device for iodine filter
02/28/13 - 20130047707 - A leak testing device for an iodine filter according to the present embodiment includes an iodine adsorption unit including an iodine filter provided in a chamber provided in a duct, to which flue gas containing radioactive iodine is fed, and including an iodine adsorbing material that adsorbs radioactive iodine contained...

Leak detection apparatus and method
01/31/13 - 20130025349 - A leak detector contains a pump that withdraws gas from a volume into which a tracer gas is leaking. The volume may also contain small amounts of air or other gas in addition to the tracer gas. Downstream from the pump, a flow restriction creates a back pressure between this...

Leak detection device using hydrogen as tracer gas
12/20/12 - 20120318048 - The leak detection device using hydrogen as a tracer gas is intended to be connected to an object to be tested. The leak detection device includes a hydrogen sensor placed in a low-pressure enclosure and includes a diode, a resistor, a MOS-type transistor whose gate is covered with a palladium...

Method of sensing abnormal condition in heat exchange process and heat exchange apparatus
12/13/12 - 20120312079 - A method of sensing an abnormal condition in a heat exchange process, capable of promptly sensing leakage of a process fluid in a process of heat exchange between a heat medium and a process fluid, is provided. With attention being paid in a process of heat exchange between a heat...

Gas tightness testing member and electronic device having the same
11/01/12 - 20120272723 - A gas tightness testing member disposed in an electronic device includes a first end, a second end, and a fluid channel penetrating from the first end to the second end. The second end of the gas tightness testing member is combined with the electronic device, and the first end is...

Leak detection system with secure sealing mechanism
10/25/12 - 20120266660 - An automotive leak detection system that includes means for forming a secure, leak-proof interconnection between a source of pressurized leak detection vapor and the automobile engine's air induction system ducting or hose. The system includes a sealing mechanism that is specially contoured and configured to matingly interconnect about the opening...

Leak testing device and method
10/18/12 - 20120260722 - A leak testing device includes a body portion and a purge gas supply. The body portion defines a cavity. The cavity is operable to enclose a portion of a part to be leak tested. The body portion also comprises at least one fluid port operable to deliver a purge gas...

Fuel vapor leak detection device
09/27/12 - 20120240664 - A fuel vapor leak detection device for detecting a leakage of fuel vapor includes a pump which pressurizes or depressurizes insides of a fuel tank and a canister, a motor which drives the pump, an electrical current detector which detects a current value applied to the motor, a switching valve,...

Device for testing pressure resistance of vessel and method for testing pressure resistance of vessel by using the device
09/13/12 - 20120227467 - The present invention relates to a device for testing resist pressure of a vessel wherein gas is stored at a high compressed state, before the use of the vessel, and to a method for testing resist pressure of a vessel by using the testing device. The device includes: the vessel...

Approaches for detecting leaks in a hard-disk drive (hdd) cover
06/07/12 - 20120137751 - Approaches for a testing apparatus for evaluating a cover of a hard-disk drive. The testing apparatus may detect whether the cover has a defect that prevents the cover from being sufficiently airtight. The testing apparatus includes a base structure that comprises a concave recess shaped to receive the cover to...

Sniffing leak detector
05/17/12 - 20120118048 - The invention relates to a sniffing leak detector comprising a sniffing line (11) and a feed line (33) that leads to a vacuum pump (16). A distribution point (24) from which a branch line (25) leads to a test gas sensor (15) is provided on the feed line (33). In...

System and method for detecting a refrigerant leak and chemicals produced as a result of heating of the refrigerant
04/19/12 - 20120090383 - A system and method for detecting leakage of a refrigerant and chemicals in an air conditioning and heating system. In some cases, a refrigerant may be inadvertently heated via a heating unit to produces dangerous chemicals. A detector can be installed near an air ventilator and can be utilized for...

Method of testing for leaks in a contained system
03/01/12 - 20120048001 - A method of testing for leaks in a contained system with an interior containing system gas and system liquid at an operating pressure, the method comprising: pressurizing the interior of the contained system, by introduction of gas comprising tracer gas into the interior, to at least 0.5 pounds per square...

Device for detecting micro-leaks
02/16/12 - 20120036920 - Micro-leaks are detected by means of a sniffer device including, in an original manner, a flat suction capsule (11) with divergent channels where the flow is regular, a resonant optical cavity (15) as a means of detection and a pump (16) with a low flow rate, which is insufficient to...

Leak detection system
12/22/11 - 20110308301 - A supersonic tracer gas impingement through-wall leak detection system can detect leaks through a barrier without the need for temporary enclosures or interior pressurization. The leak detection system includes a wand that can flow a mixture of compressed gas, such as air, and a tracer gas through a nozzle. The...

Methods for checking leaks from fuel vapor treating apparatuses
12/22/11 - 20110308302 - A method for detecting leak from a fuel vapor treating apparatus defining a first area including a fuel tank and a second area including an adsorbent canister has hermetically closing the fist area, measuring internal pressure of the first area comparing an absolute value of differential pressure between the internal...

Leak test probe for use in industrial facilities
12/01/11 - 20110290006 - Methods and apparatus are provided for performing accurate, repeatable leak test measurements in wet, dusty and/or fluid-filled systems, such as a power plant, with no special sampling pumps, carrier gases or separators required. A leak detector probe is installed directly in a pipe or other component carrying a gas flow...

Portable automotive leak detector
11/24/11 - 20110283777 - An automotive leak detector having a container of pressurized gas with an ultraviolet dye dispersed therein, flexible tubing, a regulator, and a pressure gauge. The container has an outlet to which the first end of the tubing is connected. The tubing also has a second end, with the second end...

Refrigerant leak detection system
11/17/11 - 20110277541 - A refrigerant leak detection system is provided for a motor vehicle, in which the system includes a heating, ventilating, and air conditioning (HVAC) module having a refrigerant sensor assembly adapted to be fixed within the drain hole of the sump. The refrigerant sensor assembly includes an elongated sensor element extending...

Method for determining leak rate through a bond line of a mems device
11/10/11 - 20110271744 - A method for optimizing direct wafer bond line width for reduction of parasitic capacitance in a MEMS device by reducing the width of a bond line between a first and a second wafer, exposing the MEMS device to a water vapor for a predetermined time period and at a first...

Leak detection in vacuum bags
10/27/11 - 20110259086 - A device indicates the location of an air leak in a vacuum bag used to process composite parts. The device includes a layer of material on the inner face of the bag that changes in appearance due to an oxidation-reduction reaction in areas of the layer exposed to oxygen caused...

Method for performing a leak test on a test object
10/13/11 - 20110247399 - For leak testing, a tracer gas is advanced to the outer wall (11) of the hollow test object (10) while the test object (10) is in an evacuated state. The tracer gas is discharged from a blower device (14) in the form of soap bubbles (21). When contacting the outer...

Leak detector with optical tracer gas detection
10/13/11 - 20110247400 - A leak detector comprises a cell provided with a tracer gas inlet preferably permeable to a tracer gas. In the cell, the tracer gas is caused to assume an energetically higher metastable state. By means of laser spectroscopy the absorption spectrum of the metastable tracer gas is sampled in an...

Test device for performing leak detection at a plurality of test sites
10/13/11 - 20110247401 - The leak detection device comprises a plurality of measuring cells (10) in whose interior the absorption of a laser beam (17) is influenced by the presence of tracer gas. All of said measuring cells (10) are connected to a host unit (25) via light-conducting fibers (28,34). In the host unit...

Method and device for detecting leaks in an underground liquid pipe, particularly a water pipe
09/15/11 - 20110219855 - The invention relates to a method for detecting leaks in an underground liquid pipe (T), particularly a water pipe, into which a gas is fed through a diffuser (8) into the liquid of the pipe, the atmospheric content of the gas being low; and the path of the pipe is...

Method for determining an overall leakage rate of a vacuum system and vacuum system
08/18/11 - 20110197659 - An overall leakage rate of a vacuum system which can be operated continuously or cyclically is determined. The vacuum system includes at least one process chamber (10) and a pumping device (16) connected to the process chamber (10). In a cyclical leakage rate determination technique, the following steps are taken:...

Methods and systems for evaporative cooling infrared thermographic leak detection
08/04/11 - 20110185791 - A method for leak testing a vessel is described. The method includes providing an environment within the vessel that is at a lower humidity than the environment surrounding the vessel, and using a thermographic imaging system to identify any leaks associated with the vessel. The leaks are identified based on...

Portable apparatus for determining leaks in air ducts
07/28/11 - 20110179854 - The disclosed portable apparatus for determining leaks in air ducts includes a wheeled cabinet having hand-graspable handles for transport. A front, covered equipment readout includes displays for air duct flow, air duct pressure, blower speed, and smoke generator operation. An on-board variable speed blower control knob also is included on...

At rest vacuum state for vacuum decay leak testing method and system
07/21/11 - 20110174060 - A method and apparatus for leak testing of liquid and non-liquid filled rigid and semi-rigid nonporous containers wherein a container is enclosed in a conforming test chamber and subjected to vacuum while the pressure within the chamber is monitored by an absolute pressure transducer, alone or in combination with a...

Vane pump and evaporation leak check system using the same
06/16/11 - 20110138885 - A vane pump has an upper casing, a lower casing, a rotor and a motor. First to fourth points are defined on an outer peripheral end of a lower flat surface of the lower casing. The first point is farthest from an intersection between an axis of a shaft of...

Tool for assisting leak testing of an enclosed volume and method incorporating the tool
06/09/11 - 20110132075 - A tool for assisting the leak testing of an enclosed volume is disclosed. The tool may comprise an outer seal defining inside its perimeter an attachment face of the tool. A vacuum port defined in the attachment face is configured to be fluidly coupled to a vacuum source. A nozzle...

Production of a clean gas, in particular for testing a pressurized construction component for leaks
06/09/11 - 20110132076 - A process is described for producing a clean gas, which is provided, in particular, for testing a pressurized construction component (100) for leaks, which process includes the steps of providing a liquefied gas mixture (1) which contains the clean gas (2) and at least one foreign gas (3) in a...

Leak detector and method of detecting leak
05/19/11 - 20110113861 - A leak detector detects the presence or absence of a trace amount of leak from a test piece by using helium gas. The leak detector has a guide pipe and a mass spectrometer. The guide pipe is disposed by insertion into an evacuation pipe which is communicated from a vacuum...

Leak detection system
05/19/11 - 20110113862 - A leak detection system has: a test chamber connected to a vacuum pump; a filling device for filling a test piece with helium gas; a transfer device for transferring the test piece between a ready-for-detection position in which the test piece is ready to be carried into the test chamber...

Air filter leak inspection method
05/12/11 - 20110107819 - An air filter leak inspection method is provided. First, an aerosol to be filtered containing particles is passed through an air filter having a first edge and a second edge. Next, a leakage inspection unit is provided. The leakage inspection unit includes n probes, wherein n indicates a positive integer....

Leakage seeker
05/05/11 - 20110100097 - A leak detector having a pre-vacuum feed pump, a gas detector and a flow sensor. The detector also includes a buffer volume and a restrictor to be arranged between the feed pump and the flow sensor. This protects the flow sensor against pressure surges generated by the feed pump....

Method of leak testing aerospace components
03/03/11 - 20110048111 - A method includes providing an aerospace electrical component having a wall and a feature that extends through the wall, introducing a detectable residue-free gas on a first side of the wall, and testing for the presence of the detectable gas on a second side of the wall....

Detection method and detection device for detecting core defects and delaminations in sandwich structures
02/17/11 - 20110036149 - The present invention relates to a method for detecting a defective sandwich component, particularly in aircraft construction, the method comprising the following steps: forming at least one measuring chamber in a core arrangement of a sandwich component, said at least one measuring chamber having an outwardly open end; subjecting the...

Method for testing a mechanical integrity of an insulating layer covering a conductor in a cable
01/20/11 - 20110011163 - A method for testing a mechanical integrity of an insulating layer covering a conductor in a cable, a longitudinal void being defined inside the insulating layer in a region of the conductor. A first end of the insulating layer is blocked. A compressed gas is injected at a second end...

Apparatus and method for the integrity testing of flexible containers
01/20/11 - 20110011164 - An apparatus for integrity testing a first container having a flexible body at least partially defining a first interior chamber using a second container having a second, preferably sterilized interior chamber at least partially filled with a detectable gas. A sensor associated with a detection chamber for receiving the flexible...

Heat exchanger leak testing method and apparatus
01/06/11 - 20110000284 - 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 the fluid paths to create a pressure differential between the fluid paths, and...

Smoke generation and leak detection system
12/30/10 - 20100326171 - In accordance with the present invention, there is provided a leak detection device and method of using the same. The leak detection device of the present invention employs the use of phase change vapor generation to provide a visual leak indicator, and is adapted to quickly and accurately identify the...

Method and device for checking the integrity of a flexible, nonporous bag with one or more bellows
12/30/10 - 20100326172 - There is a bag (1) that has at least one lateral gusset (4) and at least one port (8), a source (10) of pressurized gas, elements (11) for measuring the pressure of the gas; —there are two restraining plates and spacer strips. The bag is placed flat between the two...

Method and device for tightness testing
12/16/10 - 20100313634 - A test subject, which is filled with test gas, is placed in a testing chamber, which can be evacuated. A carrier gas is conducted into the testing chamber, so that a gas mixture made of carrier gas and test gas forms therein. The gas mixture is suctioned out of the...

Sniffing leak detector
11/25/10 - 20100294026 - A sniffing leak detector which comprises a first suction line in a sniffing probe, the line leading to a main device, is provided with a larger second suction line through which gas is sucked in from the sniffing tip by a gas delivery pump. By connecting the second suction line,...

Leak detection system comprising a tracer gas mediating unit
11/18/10 - 20100288020 - A system for detection of a leak at a leakage testing point of a test object by a tracer gas. A positionable tracer gas mediating unit has a tip. A marker is attachable at the leakage testing point. A marker detector is associated with the positionable tracer gas mediating unit....

Apparatus and method for checking leakage from fuel vapor processing apparatus
11/18/10 - 20100288021 - An apparatus for checking leakage from a fuel vapor processing apparatus includes an interrupting device capable of interrupting communication between a canister and a fuel tank when a pressure within the canister is negative and a pressure within the fuel tank is positive. A first pressure detecting device can detect...

Apparatus for leak testing pressurized hoses
08/19/10 - 20100206053 - A hose-attaching apparatus for leak-testing a pressurized hose may include a hose-attaching member. A bore may extend through the hose-attaching member. An internal annular cavity may extend coaxially around the bore. At least one of a detector probe hole and a detector probe may be connected to the internal annular...

Apparatus and method for leak testing
08/19/10 - 20100206054 - A body 71 of a heat sensitive member 70, made of a material having high thermal conductivity, is abutted against an outer surface of a workpiece 10 to close an opening of an inner space 11 of the workpiece 10. A pressure chamber 73 is formed inside the body 71...

Gas meter reading system
08/12/10 - 20100199747 - A gas meter reading system is provided that allows automated meter reading capability to be incorporated with sealed mechanical type gas meters. The reading system is mounted to the window of the meter adjacent to the measurement dial. The reading system senses the rotation of the dial and provides data,...

Monitoring gas leakage rates from hermetically sealed devices
08/12/10 - 20100199748 - A method for monitoring a gas leakage rate from a hermetically sealed device, such as a hermetically sealed data storage device with an interior helium atmosphere. In some embodiments, a diffusion rate of inert gas from a hermetically sealed first device is monitored until steady state diffusion is reached, and...

Waterproof test method and waterproof test tank
06/24/10 - 20100154516 - A method for testing waterproof property of an object designed to prevent water from penetrating into the inside of the object and having a hole, the hole allowing air communication between the inside and the outside of the object, the method includes: attaching closely to the object a tank having...

Mems sensor package
06/10/10 - 20100139373 - Methods and apparatus for a MEMS sensor package are provided. In one embodiment, a MEMS sensor package comprises a MEMS sensor; a sensor body permeable to gas leakage at a first leak rate; a backfill gas that pressurizes the sensor body to a backfill pressure; wherein the backfill pressure provides...

Odorant addition device and fuel gas supply system
04/29/10 - 20100101306 - An odorant addition device for adding odorant to fuel gas in a gas system that consumes the fuel gas, the device including: an addition unit for adding the odorant to fuel gas to be consumed by the gas system; an environmental condition detection unit for detecting in the gas system...

Calibration systems and methods for tracer gas leak detection
04/22/10 - 20100095745 - Tracer gas leak detection is provided by a calibration system with a gas leak detector having a test port for receiving a sample containing a tracer gas and coupled to a vacuum pump; a calibrated leak for a calibration sample containing the tracer gas; a mass filter coupled to the...

Engine leak detector and leak detection method
04/22/10 - 20100095746 - An apparatus and method for leak detection through use of an adapter containing a chamber, an air pressurization port, and detection media instillation port. The apparatus is sealingly or relatively sealingly coupled to a turbo inlet air duct on an internal combustion engine under study, such that the apparatus chamber...