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

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.

09/18/14 - 20140260553 - Detection device for detecting at least one fault state
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...

04/24/14 - 20140109655 - Cable condition monitoring device
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...

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evacuated test object is exposed to the external influence of a test gas and wherein a gas mixture made of a test gas withdrawn from the test object and of a carrier gas, is examined for the presence of test gas by use...

04/03/14 - 20140090448 - Detection apparatus for detecting leaks in an air-tight component and related detection process
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...

03/27/14 - 20140083168 - Balloon catheter apparatus for high pressure leak detection
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...

03/20/14 - 20140076034 - Testing fixture and testing method
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...

03/13/14 - 20140069174 - Oil transporting vaporizer for a smoke generating apparatus to detect leaks in a fluid system
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...

01/16/14 - 20140013828 - Method and apparatus for testing the seal of a junction liner
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...

09/26/13 - 20130247652 - Upper coupler assembly and inspection method therefor
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...

08/08/13 - 20130199274 - Leakage inspection apparatus and leakage inspection method
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...

08/08/13 - 20130199275 - Leak detector
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...

07/25/13 - 20130186179 - Eptfe filter for aseptic pharmaceutical use and method of using
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...

07/25/13 - 20130186180 - High speed helium leak detection system and method
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...

06/20/13 - 20130152673 - Gas valve with electronic valve proving system
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...

03/28/13 - 20130074583 - Leak detection method and system for a high pressure automotive fuel tank
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,...

03/14/13 - 20130061661 - Non-destructive method for testing the seal of an electrolyte of an electrochemical cell
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...

02/28/13 - 20130047707 - Leak testing method and leak testing device for iodine filter
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...

01/31/13 - 20130025349 - Leak detection apparatus and method
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...

12/20/12 - 20120318048 - Leak detection device using hydrogen as tracer gas
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...

12/13/12 - 20120312079 - Method of sensing abnormal condition in heat exchange process and heat exchange apparatus
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...

11/01/12 - 20120272723 - Gas tightness testing member and electronic device having the same
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...

10/25/12 - 20120266660 - Leak detection system with secure sealing mechanism
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...

10/18/12 - 20120260722 - Leak testing device and method
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...

09/27/12 - 20120240664 - Fuel vapor leak detection device
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,...

09/13/12 - 20120227467 - Device for testing pressure resistance of vessel and method for testing pressure resistance of vessel by using the device
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...

06/07/12 - 20120137751 - Approaches for detecting leaks in a hard-disk drive (hdd) cover
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...

05/17/12 - 20120118048 - Sniffing leak detector
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...

04/19/12 - 20120090383 - System and method for detecting a refrigerant leak and chemicals produced as a result of heating of the refrigerant
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...

03/01/12 - 20120048001 - Method of testing for leaks in a contained system
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...

02/16/12 - 20120036920 - Device for detecting micro-leaks
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...

12/22/11 - 20110308301 - Leak detection system
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...

12/22/11 - 20110308302 - Methods for checking leaks from fuel vapor treating apparatuses
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...

12/01/11 - 20110290006 - Leak test probe for use in industrial facilities
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...

11/24/11 - 20110283777 - Portable automotive leak detector
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...

11/17/11 - 20110277541 - Refrigerant leak detection system
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...

11/10/11 - 20110271744 - Method for determining leak rate through a bond line of a mems device
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...

10/27/11 - 20110259086 - Leak detection in vacuum bags
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...

10/13/11 - 20110247399 - Method for performing a leak test on a test object
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...

10/13/11 - 20110247400 - Leak detector with optical tracer gas detection
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...

10/13/11 - 20110247401 - Test device for performing leak detection at a plurality of test sites
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...

09/15/11 - 20110219855 - Method and device for detecting leaks in an underground liquid pipe, particularly a water pipe
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...

08/18/11 - 20110197659 - Method for determining an overall leakage rate of a vacuum system and vacuum system
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:...

08/04/11 - 20110185791 - Methods and systems for evaporative cooling infrared thermographic leak detection
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...

07/28/11 - 20110179854 - Portable apparatus for determining leaks in air ducts
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...

07/21/11 - 20110174060 - At rest vacuum state for vacuum decay leak testing method and system
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...

06/16/11 - 20110138885 - Vane pump and evaporation leak check system using the same
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...

06/09/11 - 20110132075 - Tool for assisting leak testing of an enclosed volume and method incorporating the tool
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...

06/09/11 - 20110132076 - Production of a clean gas, in particular for testing a pressurized construction component for leaks
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...

05/19/11 - 20110113861 - Leak detector and method of detecting leak
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...

05/19/11 - 20110113862 - Leak detection system
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...

05/12/11 - 20110107819 - Air filter leak inspection method
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....