Entries |
Document | Title | Date |
20080196514 | Inhalable Sampler - A personal dust sampler for collecting airborne inhalable dust. A sampler body provides vertical elutriation by comprising an entry aperture at a distal end exposed to ambient air and having an inner diameter for air intake, and an air exit at a proximal end connected to a pump for drawing air through and along a longitudinal axis of the sampler body to filter media disposed therein for dust capture. A distance along the longitudinal axis between the filter media and the entry aperture defines an air intake length, where the length is greater than the inner diameter of the entry aperture. The air intake length could also be two, three or four or more times greater than the entry aperture inner diameter. The longitudinal axis could be arranged substantially vertically during use, so the entry aperture lies in a horizontal plane, simulating nose orientation and breathing through the nose. | 08-21-2008 |
20080202261 | Apparatus and method for maintaining multi-component sample gas constituents in vapor phase during sample extraction and cooling - A dilution apparatus for diluting a gas sample. The apparatus includes a sample gas conduit having a sample gas inlet end and a diluted sample gas outlet end, and a sample gas flow restricting orifice disposed proximate the sample gas inlet end connected with the sample gas conduit and providing fluid communication between the exterior and the interior of the sample gas conduit. A diluted sample gas conduit is provided within the sample gas conduit having a mixing end with a mixing space inlet opening disposed proximate the sample gas inlet end, thereby forming an annular space between the sample gas conduit and the diluted sample gas conduit. The mixing end of the diluted sample gas conduit is disposed at a distance from the sample gas flow restricting orifice. A dilution gas source connected with the sample gas inlet end of the sample gas conduit is provided for introducing a dilution gas into the annular space, and a filter is provided for filtering the sample gas. The apparatus is particularly suited for diluting heated sample gases containing one or more condensable components. | 08-28-2008 |
20080216591 | METHOD AND SYSTEM FOR SAMPLING DISSOLVED GAS - A gas sampling system having a storage chamber configured to store a gas; a water-impermeable, gas-permeable surface; and an isolating system. The isolating system is configured to have a first and a second position, and the storage chamber is in fluid communication with the water-impermeable, gas-permeable surface when the isolating system is in a first position. The storage chamber is not in fluid communication with the water-impermeable, gas-permeable surface when the isolating system is in the second position. The gas sampling system also has a gas displacement system configured to displace the gas from the storage chamber. | 09-11-2008 |
20080257071 | Microfluidic Device with Porous Membrane and an Unbranched Channel - The invention relates to a microfluidic device for detection of a substance in a sample fluid, and to a cartridge for performing a biological assay, containing such a device. The microfluidic device comprises two housing parts ( | 10-23-2008 |
20090007699 | Multigas Passive Sampler - A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly. | 01-08-2009 |
20090165575 | METHOD AND SYSTEM FOR SAMPLING SYNGAS - A method is provided for sampling hot gas. The method includes inserting a probe into a flow of hot gas, and collecting a sample of the hot gas with the probe. The sample of the hot gas is quenched prior to an analysis of the sample. | 07-02-2009 |
20090165576 | ULTRA FILTRATION SYSTEM FOR ON-LINE ANALYZER - The present invention relates to a system for pretreating a test sample in order to analyze a test sample containing suspended solids in an on-line analyzer can, and more particularly to an ultra filtration system for an on-line analyzer for filtering suspended solids in order to stably quantitatively analyze a test sample containing a large amount of suspended solids using a module-type hollow fiber membrane filter intake system in an online analyzer. The ultra filtration system according to the present invention may be useful to obtain a reliable analysis result of a test sample using a filtered water in the field of environments, foods, chemistry, microorganisms, etc. by continuously separating solids from a liquid test sample containing a large amount of the solids and optimizing the test sample, in order to analyze the test sample in an on-line analyzer, and also to sense and swiftly respond to the real-time change in process and to minimize unnecessary manpower wastes, for example, extending a life span of an on-line analyzer, and maintaining, examining and correcting the analyzer, etc. | 07-02-2009 |
20090205445 | METHOD FOR SELECTING A FILTER ELEMENT FOR A DUST COLLECTOR - A method of providing a filter element for a dust collector having at least one circular blowpipe and pulse arrangement includes measuring an inside diameter of the blowpipe; and selecting a filter element having a width that is 7.125±0.75 inches times the inside diameter of the blowpipe; and a length that is 2.2-3.3 times the width. | 08-20-2009 |
20090211379 | Method and Apparatus for Fluid Sampling - This invention is directed to a method and system for particle entrained fluid sampling. The invention is specifically directed to a system capable of sampling a high pressure and/or high flow rate fluid flow system using a means for applying pressure or suction to the fluid sample in the fluid sampling system operatively connected to a sample extractor and a sample analysis device. The means for applying pressure or suction is adjustable to provide control over the sample flow in the fluid sampling system. The fluid sampling system of the present invention may be particularly applicable to monitoring the condition of hydraulic and lubrication systems. | 08-27-2009 |
20090217776 | Real-Time Filtration Apparatus and Associated Methods - A fluid testing apparatus and associated method include a testing chamber, a filter storage device and a filter transfer mechanism. The testing chamber has a sample volume, a filtrate collection reservoir, an opening between the sample volume and the filtrate collection reservoir, and at least one port into the sample volume. The filter transfer mechanism positions at least one filter in the opening. The opening is closed and a sample fluid, introduced into the port, at least partially fills the sample volume. The sample volume is pressurized and a filtrate of the sample fluid flows from the sample volume, through the filter into the filtrate collection reservoir. The volume of filtrate passing into the filtrate collection reservoir is measured and the sample fluid from sample volume is discharged. The filtrate is discharged from the filtrate collection reservoir, and the filter transfer mechanism removes the filter. | 09-03-2009 |
20090217777 | ANALYTE SCREENING AND DETECTION SYSTEMS AND METHODS - Methods of concentrating an analyte that is in liquid and method of detecting an analyte in a liquid are disclosed. Methods of screening a liquid for the presence of an analyte are also disclosed. Processes comprising continuously collecting a sample of fluid throughout the process and analyzing the sample are disclosed as are processes comprising treating ultrafilter membranes. Devices and systems for concentrating an analyte that is in liquid and for screening a liquid for an analyte are disclosed as well as devices and systems for concentrating an analyte from a continuous sample are disclosed. | 09-03-2009 |
20090217778 | Sampling and Monitoring of Particulate Suspension Material - Apparatus for use in measuring properties of media formed from a particulate suspension. The apparatus includes a media sampler coupled to feed pipes to allow media to flowing therethrough to be sampled and a connector for coupling the media sampler to a sensor for sensing properties of the sampled media. | 09-03-2009 |
20090241696 | ON-LINE PRODUCTION PROCESS OF SAND PRESENTING A CONTROLLED METHYLENE BLUE VALUE - An embodiment of the invention provides a production process of sand including the extraction of sand from a quarry; the periodic, on-line and automated withdrawal of a sample of sand; and the automated measurement of the methylene blue value on the sample of sand. Another embodiment of the invention provides a production line of sand including means of extraction of sand from a quarry; periodic and automated means of withdrawal of a sample of sand; and automated means of measuring the methylene blue value for the sample of sand. | 10-01-2009 |
20090249895 | AIR FILTER HOUSING WITH MEANS FOR MEASURING PARTICLE CONCENTRATION - An air filter housing ( | 10-08-2009 |
20090272202 | PERSONAL NANOPARTICLE SAMPLER - A personal nanoparticle sampler is disclosed to include a pre-classifier, a nozzle, a particle-sizing filter pack and a final filter pack. The particle-sizing filter pack and the final filter pack respectively accommodate a particle-sizing filter and a final filter to collect nanoparticles smaller than a diameter. The pre-classifier removes large particles to avoid clogging of the particle-sizing filter pack. The nozzle raises the airflow velocity to reduce the cut-off diameter of the particle-sizing filter without increasing the total flowrate, allowing the personal nanoparticle sampler to be used with a personal sampling pump. | 11-05-2009 |
20090301229 | MULTIGAS PASSIVE SAMPLER - A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly. | 12-10-2009 |
20100011886 | SYSTEM FOR SAMPLING THE AIRFLOW ENTERING THE COMPRESSOR OF A TURBOMACHINE - An embodiment of the present invention provides an air sampling system for measuring corrosives within an airstream flowing within an inlet system. This air sampling system may include an air sampling unit with a plurality of sampling coupons secured within. Parts of the air sampling system may be externally mounted to the inlet system, allowing for an operator to access the sampling coupons, while the inlet system operates. In operation, an embodiment of the present invention has a sampling line connected to the air sampling system; the airstream flowing within the sampling line passes over the sampling coupons and then returns to the inlet system. | 01-21-2010 |
20100011887 | Device And Method For Separating A Liquid Component Of A Blood Sample, And Analyzer Apparatus Comprising Such A Device - A device for separating at least part of the liquid component of a blood sample and methods thereof are disclosed. Generally, the device includes a container body for receiving the blood sample, a layer of retaining porous material, a layer of separating permeable material. The retaining porous material retains non-liquid components of the blood sample after the non-liquid components have been subjected to centrifugal force which forces them through the separating permeable material into the retaining porous material. | 01-21-2010 |
20100050789 | Finger Swipe Fluid-Transfer Collection Assembly and Method of Using the Same - A method of using a finger swipe fluid transfer collection assembly includes providing a finger swipe fluid transfer collection assembly including a base, a test media carried by the base, an inlet for receiving a sample fluid, an outlet, a finger swipe fluid transfer mechanism carried by the base between the inlet and the outlet and including an interior; swiping the finger swipe fluid transfer mechanism with one's finger to impart a negative pressure in the interior of the finger swipe fluid transfer mechanism to draw the sample fluid into the interior of the finger swipe fluid transfer mechanism through the inlet; and swiping the finger swipe fluid transfer mechanism again with one's finger to impart a positive pressure in the interior of the finger swipe fluid transfer mechanism to pump the sample fluid through the outlet and be transferred to the test media. | 03-04-2010 |
20100050790 | STACK-GAS MEASURING APPARATUS AND STACK-GAS MEASURING METHOD - A stack-gas measuring apparatus includes a sample introducing unit (sampling unit and heating conduit pipe) for introducing stack-gas, a cooling unit (containing wet filter ) in which dust components in the stack-gas are agglomerated, a filter column containing a filter element made of a polymer material for collecting the dust components, a mist scrubber which is disposed downstream of the filter column and which contains an adsorbent for removing acid mist in the stack-gas, and an analyzer in which the cleaning-processed gas is introduced to measure a particular component in the stack-gas. | 03-04-2010 |
20100154567 | PERMEABLE-WALL SAMPLE HOLDER AND RELATED METHODS - A permeable-wall sample holder provides ventilation of vapor-phase entities between the sample and the exterior of the holder through its wall. The vapor-phase transport across the holder wall supports equilibrium of the sample with the analysis environment. | 06-24-2010 |
20100192706 | SAMPLE PREPARATION APPARATUS - Apparatus for preparing a biological sample for PCR analysis has an inlet ( | 08-05-2010 |
20100199786 | REMOVAL OF PARTICULATES FROM GAS SAMPLING STREAM - A sample probe includes a sample probe tip filter and a deflector disposed in relation to the sample probe tip filter, where the deflector is operable to deflect particles in a gas stream away from the sample probe tip filter. | 08-12-2010 |
20100199787 | PROBE FOR REMOVAL OF PARTICULATES FROM GAS SAMPLING STREAM - A sample probe includes a sample probe tip filter. The sample probe also includes a shield disposed in relation to the sample probe tip filter, the shield being operable to deflect particles in a gas sampling stream away from the sample probe tip filter. The shield has at least one opening that allows the gas within the gas sampling stream and certain ones of the particles in the gas sampling stream both traveling in a substantially flow reversal direction to a primary direction of the gas sampling stream to enter the shield and contact the sample probe tip filter. | 08-12-2010 |
20100206095 | REGENERATION OF A FLUID FILTER CONTROLLED BY A PRESSURE DROP MONITOR - A system for monitoring fluid quality within a fluid flow in real time, is disclosed. The system comprises (a) a fluid filter incorporated into the fluid flow; the filter is adapted for filtering the fluid flow; (b) sensor means adapted for measuring a difference between an upstream pressure and a downstream pressure of the fluid flow; and (c) control means. The control means is adapted for estimating the fluid quality on a base of measuring a time period of rise in the pressure difference at the filter over a predetermined value. | 08-19-2010 |
20100224012 | FLUID SAMPLE DELIVERY SYSTEM AND METHOD - A fluid delivery system including a filter for filtering solid particles from a liquid sample, the filter including a first filter member configured to filter solid media from a liquid sample, a second filter member fluidly connected to the first filter member, and a third filter member fluidly connected to a downstream end of the second filter member. The second filter member is configured to filter relatively smaller solid media from the liquid sample than the first filter member, and the third filter member is configured to filter relatively larger solid media from the liquid sample than the second filter member. In various aspects, the system includes a displacement-type plunger needle to draw sample fluid from a vial, a cantilevered carousel for rotatably supporting an array of sample holding vials, and a support for supporting the carousel. Method of using the fluid delivery system are also disclosed. | 09-09-2010 |
20100242634 | Method for depositing samples in modules and an adapter - The invention relates to a method for depositing samples in modules, in particular, in kits, in addition to an adapter. The inventive adapter ( | 09-30-2010 |
20110005341 | FILTERING APPARATUS FOR FILTERING A FLUID - The present invention relates to a filtering apparatus ( | 01-13-2011 |
20110061473 | GROUNDWATER EVALUATION TOOLS AND METHODS OF GROUNDWATER EVALUATION - This application is directed to a probe used for measuring groundwater characteristics such as temperature and conductivity, and for collecting a groundwater sample. The probe also has a shielding device that allows the probe to be driven into a hard underwater surface without damaging the probe. A deployment rig for accurately placing the probe into the underwater surface is also disclosed. The application is further directed to a method for placing a probe and measuring groundwater characteristics. An external screen membrane used with the probe allows accurate groundwater characteristic measurement by filtering particulate matter. The probe and external screen membrane allow for in situ measurement and monitoring. | 03-17-2011 |
20110061474 | Liquid to Liquid Biological Particle Concentrator with Disposable Fluid Path - Highly efficient and rapid filtration-based concentration devices, systems and methods are disclosed with sample fluidic lines and a filter packaged in a disposable tip which concentrate biological particles that are suspended in liquid from a dilute feed suspension. A sample concentrate or retentate suspension is retained while eliminating the separated fluid in a separate flow stream. The concentrate is then dispensed from the disposable tip in a set volume of elution fluid. Suspended biological particles include such materials as proteins/toxins, viruses, DNA, and/or bacteria in the size range of approximately 0.001 micron to 20 microns diameter. Concentration of these particles is advantageous for detection of target particles in a dilute suspension, because concentrating them into a small volume makes them easier to detect. All conduits by which the disposable tip attaches to the instrument are combined into a single connection point on the upper end of the tip. | 03-17-2011 |
20110067505 | Devices, Systems and Methods for Elution of Particles from Flat Filters - Devices, systems and methods are disclosed which relate to using a wet foam elution method for removal of particles from a flat filter. Particles are captured from the atmosphere onto the flat filter. The flat filter is then placed into an extractor which passes a stream of wet foam through the flat filter. Expansion of the foam works to efficiently remove captured particles. The foam flows from the filter along with the captured particles into a sample container. Once in the sample container, the foam quickly breaks down leaving an analysis ready liquid sample. | 03-24-2011 |
20110079094 | Microfluidic structure and method of measurement and/or positioning of a volume of a liquid - A measurement channel for use in a microfluidic system, particularly a lab-on-chip system, having a first end at which a first gas permeable but liquid impermeable wall section is disposed which makes available a gas conduit, and a second end at which the measurement channel is connectable to at least one fluid conduit and at which an isolation or cutoff means is disposed, wherewith in the measurement channel a defined volume is included between the wall section and the isolation or cutoff means. The isolation or cutoff means is preferably in the form of a second gas permeable but liquid impermeable wall section which makes available a gas conduit. A microfluidic structure is disclosed having a plurality of fluid conduits, and further having a valve for selectively connecting and/or blocking the fluid conduits, at least one of which fluid conduits is in the form of a measurement channel. A method of measuring (measuring out) and/or positioning a volume of a liquid in a microfluidic system, by means of a measurement channel is disclosed. | 04-07-2011 |
20110120236 | SAMPLE COLLECTOR AND TEST DEVICE - A sample collector and test device is disclosed. The sample collector and test device may be used together as a diagnostic tool for collecting and assay of analytes contained in a sample. A sample collector is also disclosed which may be used with existing sample containers and or test devices. The sample collector may indicate sample adequacy when a sufficient volume of sample has been collected for assay and may also include a sample retaining feature which retains a portion of expressed sample for confirmatory testing, if desirable. The sample collector may also include a mechanism for expressing sample in a sample collector and/or test device. A test device is also disclosed for retaining and assay of an expressed sample. The disclosed test device may be used with existing sample collectors. In a preferred embodiment, test device is used with a preferred sample collector. Test device may include a locking feature for locking a sample retained on a sample collector or test device may be used to receive expressed sample collected from a syringe or another suitable sample delivery device. | 05-26-2011 |
20110126644 | SEDIMENT SAMPLER FOR IN-SITU MEASUREMENT OF SOLUBLE CONTAMINANT FLUX RATES - A method and apparatus for in-situ measurement of soluble contaminant flux rates from sediments in which an inverted desorption chamber containing a sorbent system is filled with water and placed over an area of sediment, whereby the interior of the chamber is isolated from the exterior of the chamber above the sediment. Soluble contaminants released from the sediment are sorbed onto the surface of a sorbent material disposed within a plurality of semipermeable membrane bags disposed within the chamber. Each semipermeable membrane bag is removed from the chamber in a pre-defined sequence over a period of time and the sorbent material in each bag is analyzed to determine an amount of the soluble contaminant sorbed by the sorbent material. From the results of the analyses, the mass of the soluble contaminant removed from the sediment over time can be calculated. | 06-02-2011 |
20110138936 | MEANS FOR TESTING FILTER INTEGRITY IN A LIQUID PURIFICATION SYSTEM - In one embodiment, a liquid purification system for purifying a liquid and delivering purified liquid to external downstream equipment includes a source of liquid to be purified and a filter device that is operatively coupled to and selectively in communication with the source of liquid. The filter device includes a filter element. The system also includes a controller and a means for performing a filter integrity test on the filter element, whereby the controller is configured to detect when purified liquid is being used by the downstream equipment and coordinate the initiation of the filter integrity test at time when conducting the filter integrity test does not adversely effect the operation of the downstream equipment. | 06-16-2011 |
20110146418 | Sample Preparation Devices and Methods - A device for sample processing can include at least one chamber having an egress, said chamber being configured to receive a sample for processing, a filter through which at least some sample portions in the at least one chamber flow, and a barrier member disposed in a first state to contain sample in the at least one chamber. Upon sufficient conditions, the barrier member can be alterable to a second state to permit flow of at least some sample portions contained in the chamber in a flow direction toward the egress and through the filter. | 06-23-2011 |
20110167932 | COARSE PARTICLE EXPOSURE MONITOR - A filter apparatus that includes a housing having at least one opening by which a fluid is Introduced thereto, a first plate inside the housing and having a plurality of inlets offset from a central axis of the housing and angularly separated from each other. The inlets are configured to pass the fluid thereto. The filter apparatus includes a second plate inside the housing and disposed downstream from the first plate. The second plate has angularly extending outlets disposed at a radial distance from the central axis which is beyond the plurality of inlets such that the fluid is diverted radially outward in passing from the first plate through the second plate. The filter apparatus includes a first filter provided on the second plate underneath the plurality of inlets and configured to trap particles in the fluid which are not diverted to the angularly extending outlets, and includes an exit. | 07-14-2011 |
20110197685 | Portable Concentrator - The present disclosure provides devices, systems and methods for concentrating a fluid sample. A portable or hand-held concentrator is used to draw the fluid sample through a filter into an internal chamber, capturing target particles on the filter. An elution cartridge containing an elution fluid is used to recover the captured particles into a reduced fluid volume. The hand-held concentrator includes a tip, which, when opened, allows the hand-held concentrator to draw the fluid sample into the tip and through the filter wall into the internal chamber. The drawing occurs due to a vacuum or wicking source in the internal chamber of the hand-held concentrator. The target particles are captured on the filter. The elution fluid contains a foaming agent and is held under a head pressure of gas soluble in the elution fluid. The target particles are eluted from the filter into the reduced fluid volume using an elution foam that is formed when the elution fluid is released from the elution cartridge. Embodiments of the hand-held concentrator are entirely self-contained and can operate without electrical power. | 08-18-2011 |
20110277564 | DEVICE FOR COLLECTING CHEMICAL COMPOUNDS AND RELATED METHODS - A device for sampling chemical compounds from fixed surfaces and related methods are disclosed. The device may include a vacuum source, a chamber and a sorbent material. The device may utilize vacuum extraction to volatilize the chemical compounds from the fixed surface so that they may be sorbed by the sorbent material. The sorbent material may then be analyzed using conventional thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS) instrumentation to determine presence of the chemical compounds. The methods may include detecting release and presence of one or more chemical compounds and determining the efficacy of decontamination. The device may be useful in collection and analysis of a variety of chemical compounds, such as residual chemical warfare agent, chemical attribution signatures and toxic industrial chemicals. | 11-17-2011 |
20120067143 | MINIATURE ACTIVE STANDOFF CHAMBER - One or more embodiments of a standoff chamber system configured to generate aerosolized clouds, useful in testing or calibrating standoff detectors in a laboratory environment, includes a chamber body having vertically recirculating vortices for generation of the clouds. The standoff chamber further includes a pair of aero-windows configured to surround a pair of apertures in the chamber body, filtering and preventing escape of the cloud, while allowing direct observation of the cloud by standoff detectors. | 03-22-2012 |
20120125127 | Method and device for preparing substances for qualitative and quantitative analyses - A method and a device for preparing a qualitative and quantitative analysis of samples are presented. The device affords the possibility of delimiting and isolating a specific region of a solid or liquid sample. A liquid, e.g. a solvent or extracting agent, is added in the delimited and isolated region. Thereafter the created mixture of substance and liquid is, in a plug-shaped fashion, pressed out of the closed region by means of a neutral liquid or the same liquid, and supplied to the measuring instrument in the form of a highly concentrated solution. | 05-24-2012 |
20120180577 | PERISTALTIC PUMPS AND FILTRATION ASSEMBLY SYSTEMS FOR USE THEREWITH - Filtration assemblies for use with peristaltic pumps, peristaltic pumps, systems including the assemblies and pumps, and methods of using the assemblies, pumps, and systems, are disclosed. | 07-19-2012 |
20120180578 | MULTI-SECTION SEDIMENT PORE WATER SAMPLER - The present invention discloses a multi-section sediment pore water sampler, which comprises a plurality of sampling units arranged coaxially and separated with each other; this arrangement ensures no water exchange occurred between two adjacent sampling units, collection of the sediment pore water samples from different depths of a same position is realized, whereby to facilitate organic pollutant sampling in sediment pore water at different depths according to different time resolutions. Furthermore, as the heights of the sampling units as well as the clearances between two neighboring sampling units may be various, in use users can configure the sampler according to the actual condition of the time resolution required, thus this sampler can also help improve the time resolution of water sampling. | 07-19-2012 |
20120222500 | ENVIRONMENTAL SAMPLER AND METHODS OF USING SAME - An environmental testing and monitoring system uses a sampler to hold resin or other adsorbent for contaminants and pollutants uptake from water or air, and preferably includes remote real-time sensors that detect and transmit physical and/or chemical data by wireless or wired telemetry and GPS systems. The sampler and sensors may be attached to a fixed or floating buoy system that is capable of solar charging or may be affixed to other supports to allow precise placement in, and easy retrieval from, various structures and environments including fresh and saltwater, soil and sediment, water and sludge pipes and vessels, air, and gaseous streams and emissions. Time-measured, mass-balanced data sets may be achieved from the extended-time-accumulated values from the resin/adsorbent sampler left in place for an extended time, and preferably from the real-time sensors that transmit a steady stream of information throughout said extended time. | 09-06-2012 |
20120255377 | IDENTIFICATION AND USE OF AN ISOMORPHOUSLY SUBSTITUTED MOLECULAR SIEVE MATERIAL FOR GAS SEPARATION - The identification, synthesis, and use of an isomorphously substituted molecular sieve material having structural frameworks substituted with a preselected substitution element for a framework element of the molecular sieve material can result in a preferred transport controlling window size range for the optimal separation of a target gas component from a gaseous mixture containing said target gas component. | 10-11-2012 |
20120285267 | SAMPLE PREPARATION DEVICE - A sample preparation device comprises: | 11-15-2012 |
20120297899 | Chromatography Apparatus And Method - Sample preparation device for receiving in sealing relation one or more filter assemblies and one or more sample containers, each container uniquely positioned within the device to receive filtered sample from a designated filter. The device includes a body, a lid disposed on the body, a container tray, a base, an integrated seal on the body, a valve and a valve actuator. The tray can be disposed in a vacuum chamber defined by the lid and the body, and one or more sample containers can be disposed in the tray. When properly positioned in the tray in the vacuum chamber, each container is in fluid communication with a single respective filter assembly disposed in sealing relation in a respective aperture in the lid. A single actuation of a valve causes the lid to seal to the base and drives the simultaneous filtration of a plurality of samples. | 11-29-2012 |
20120297900 | PASSIVE DIFFUSION SAMPLER - A passive diffusion sampler and kit that includes a passive diffusion sample bag comprising a regenerated cellulose membrane to allow for sampling of a broad spectrum of contaminants and VOCs. The sample bag is disposed in a rigid housing which protects the bag from tearing and also allows the housing to be inverted to suspend the bag upside down and provide a user access to a fluid outlet means on the bag for withdrawing a sample from the bag without agitating the sample. | 11-29-2012 |
20130068039 | SPECIMEN CONVEYANCE APPARATUS - Disclosed herein is a specimen conveyance apparatus including: a main body having a plate-like shape and including a storage chamber having a recess-like shape formed thereon; a cover member covering the main body; a sealing member inserted between the main body and the cover member and blocking the storage chamber and the outside; a suction pipe installed within the main body, having a suction valve, and sucking external air; a filter installed within the main body, removing a reactive gas and particulate foreign material from air sucked through the suction pipe, and allowing an inert gas to pass therethrough toward the storage chamber; a discharge pipe installed within the main body, having a discharge valve, and discharging a gas to the outside; and a pump discharging a gas present in the storage chamber to the outside through the discharge pipe. | 03-21-2013 |
20130074612 | Molecular Separators, Concentrators, and Detectors Preparatory to Sensor Operation, and Methods of Minimizing False Positives in Sensor Operations - As an elegant solution for minimizing false positives returned by a sensor tuned to an analyte molecule, filters constructed of carbon nanotubes are positioned relative to the sensor to limit the sensor to being exposed to molecules within a defined range of sizes, with too-big molecules being excluded from reaching the sensor by one filter, and too-small molecules being pumped out through another, finer filter before the sensor is operated. | 03-28-2013 |
20130104674 | AQUATIC MACROINVERTEBRATE SUBSAMPLING EQUIPMENT | 05-02-2013 |
20130139617 | Sample Container and Filtration Apparatus and Method of Filtration Using Same - A sample container and filtration apparatus includes a sample container portion with an interior volume and a fluid path passing through a bottom wall. The sample container may also include a valve casing connected to and moveable relative to the sample collection portion between a first and second position. A valve secured to and moveable with the valve casing may close the fluid path of the sample collection portion when in a first position and open the fluid path when in a second position. The apparatus may also include a vacuum base coupling portion that is distal to the valve casing, and includes a filter membrane support surface for supporting a filter membrane. | 06-06-2013 |
20130167666 | FLUID FLOW SAMPLING DEVICE - A fluid flow sampling device comprises an elongate housing and a sleeve disposed in the housing having openings corresponding to an inlet and an outlet of the housing. The sleeve is movable relative to the housing to an open position and a closed position. The open position aligns the openings of the sleeve with the inlet and the outlet to allow fluid to flow into the inlet, through the sleeve, and out of the outlet. The closed position blocks the inlet and/or the outlet with a portion of the sleeve such that fluid is prevented from flowing through the sleeve. Additionally, a coalescent filter is disposed in the sleeve between the inlet and the outlet to allow some fluid to pass through the filter for sampling and to allow another portion of fluid to flow past the filter and out of the outlet to carry away coalescent material on the filter. | 07-04-2013 |
20130220035 | SMOKE DUST SAMPLING GUN WITH A SMOKE DEWATERING DEVICE - Disclosed is a smoke dust sampling gun with a smoke dewatering device, with one end of a connecting sleeve ( | 08-29-2013 |
20130239705 | LIQUID FEEDING DEVICE USING BALL SCREW, AND ANALYZER - A control device controls driving of a pulse motor to cause liquid that is sucked into a syringe in a single suction process to be discharged over a plurality of discharge processes. The control method of the control device is a method that controls driving of the pulse motor so that rotation of a ball screw for executing each discharge process starts from an identical rotational angle position relative to a slit of a coupling. | 09-19-2013 |
20130255403 | SAMPLING DEVICES, KITS FOR ASSEMBLING SUCH SAMPLING DEVICES, AND METHODS FOR SAMPLING BUILDING MATERIALS - Sampling devices for procuring building material samples may include a first shaft, a second shaft, a core sampler, and at least one dust inhibitor. Sampling device kits may include a second shaft, at least one core sampler for procuring building material samples and configured to connect to the second shaft, at least one of an optional handle and an optional drill chuck configured to connect to the second shaft, an optional first shaft through which the second shaft and core sampler are configured to extend, and at least one optional dust inhibitor configured to connect to the first shaft. Methods of procuring a sample of building material may include sampling devices. | 10-03-2013 |
20130298702 | IN SITU MARINE SAMPLE COLLECTION SYSTEM AND METHODS - According to one aspect, the invention relates to a marine sample collection system adapted for in situ use. The system includes a first filter head and a second filter head for filtering material of interest from ambient marine fluid passing therethrough and a respective filter flow meter disposed downstream of each of the filter heads for measuring volumetric flow through each filter head. The system also includes a pump downstream of the filter heads for inducing flow through the filter heads and an outlet flow meter disposed downstream of the pump for measuring volumetric flow through the pump. An optional controller compares a sum of an output of the flow meters associated with the first and second filter heads and an output of the outlet flow meter to determine if there is leakage in the system. | 11-14-2013 |
20130312543 | METHOD AND APPARATUS FOR OBTAINING HEAVY OIL SAMPLES FROM A RESERVOIR SAMPLE - The invention relates to an apparatus and method to obtain a bitumen or heavy oil sample from an oil reservoir sample, such as a core sample, to enable measurement of physical properties such as viscosity, API gravity, or chemical properties such as sulphur content of the obtained bitumen or heavy oil sample. The analyses performed on the samples obtained in accordance with the invention are effective in assisting oil field operators in making timely drilling and production decisions at the oil reservoir or for routine laboratory extraction of oils and bitumens. The invention also permits the collection of samples from simulated thermal recovery operations and also allows the collection of bitumens and oils for online analysis of live oil physical properties. | 11-28-2013 |
20140047932 | METHOD, SYSTEM AND APPARATUS FOR USE IN LOCATING SUBSURFACE ORE BODIES - A method and system for locating subsurface ore bodies. Samples of near surface soil are collected over a predetermined geographical area. The samples are analysed to discover any chemical anomalies in the dust particles as a way of identifying possible subcropping mineralization. A tine ( | 02-20-2014 |
20140076070 | MONOLITHIC SILICONE AND METHOD OF SEPARATION, PURIFICATION AND CONCENTRATION THEREWITH - The present invention provides a monolithic silicone in the form of an aerogel or a xerogel having flexibility and capable of dissolving molecules of a substance. This silicone monolithic body having continuous through passages is synthesized by copolymerizing starting materials of both a bifunctional alkoxysilane and a trifunctional alkoxysilane or tri- or higher functional alkoxysilanes through a sol-gel reaction for forming a Si—O network while causing phase separation. | 03-20-2014 |
20140182398 | Luer Connectors - Luer connector including a primary Luer male connector, having a secondary female section extending from a top distal part of the primary Luer male connector back towards a proximal part thereof, the primary Luer male connector including a first inner fluid flow channel extending from a proximal end thereof to the secondary female section, the first inner fluid flow channel having a diameter of approximately d1 increasing at a connection point between the first inner fluid flow channel and the secondary female section to form a neck N the secondary female section having an internal diameter of d2 at a top distal part of the primary Luer male connector, where d1 is smaller than d2, the primary Luer male connector being configured to mate with a primary Luer female connector having a secondary male section including a second inner fluid flow channel ex having an internal diameter of approximately d1. | 07-03-2014 |
20140216176 | Device for Extracting at Least One Gas Contained in A Circulating Fluid - The device comprises an apparatus ( | 08-07-2014 |
20140260692 | METHODS AND APPARATUS FOR INDOOR AIR CONTAMINANT MONITORING - Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room. | 09-18-2014 |
20140260693 | SYSTEM APPARATUS AND METHOD OF SAMPLING A BROAD RANGE OF CHEMICALS (SBRC) BY COLLECTION AND ANALYSIS OF CHEMICAL VAPORS AEROSOLS PARTICULATES AND LIQUID DROPLETS ON SURFACES - Sampling of a broad range of chemicals using a handheld sampler body, having a sample screen in a sampling cassette; where a sample screen housing further consists of a locking arm arrestor body, where, the locking arm arrestor body including a draw tube, and where the sampling screen can be positioned in either a retracted or extended positioned regarding a sample access face. When activated, the system executes collecting and sampling operations of chemicals, by exposing the extended sampling screen to a sampling environment, drawing through the draw tube, air from the sampling environment, further collecting, onto the surface of the sample screen solid particles and/or pressing the sample screen against the surface(s) of object in the sampling environment. Then, removing the sampling screen from the sampling environment and isolating the plurality of airborne chemical contaminants, by retracting a sample screen into the sample screen housing. | 09-18-2014 |
20140283626 | Tubular membrane gas and volatile compounds sampler for fluid introduction at atmospheric to high pressure - A high-transmittance sampler of dissolved gases and volatile organic compounds (VOC) is described that is based upon a thin polymer membrane with tubular geometry. Very high hydrostatic pressures are maintained by surrounding the polymer tube or coating with sintered material. The sintered material can be surrounded by additional metal support, with holes for passage of molecules into the vacuum chamber of a sensor system such as a mass spectrometer. A method is described that uses the plastic behavior of the polymer to seal the ends of the sampler against leakage. Other features of the sampler are compact size, varied vacuum housing geometry, and provision for heat with regulation to the vacuum assembly of the sampler. The hydrodynamic design of fluid flow through the sampler and the compact and variable vacuum geometry allow greater response and sensitivity than previous samplers, and allow its operation to very high hydrostatic pressures. | 09-25-2014 |
20140290391 | Diffusion Sampler - A diffusion sampler includes an elongated tubular support structure, a top end cap, a bottom end cap, a first coupling device, at least a first membrane and a reservoir mechanism. The support structure has an outer wall that defines an interior space therein. The outer wall defines a plurality of openings. A membrane is disposed around the outer wall at least in the area of the upper portion of the support structure and is configured to allow at least one first selected type of molecule to pass therethrough. A reservoir mechanism is coupled to a bottom portion of the support structure and is configured to define a reservoir in the lower portion of the support structure that prevents a selected liquid from flowing out of the lower portion of the support structure. | 10-02-2014 |
20140298924 | Chromatography Apparatus And Method - Sample preparation device for receiving in sealing relation one or more filter assemblies and one or more sample containers, each container uniquely positioned within the device to receive filtered sample from a designated filter. The device includes a body, a lid disposed on the body, a container tray, a base, an integrated seal on the body, a valve and a valve actuator. The tray can be disposed in a vacuum chamber defined by the lid and the body, and one or more sample containers can be disposed in the tray. When properly positioned in the tray in the vacuum chamber, each container is in fluid communication with a single respective filter assembly disposed in sealing relation in a respective aperture in the lid. A single actuation of a valve to place the vacuum chamber under vacuum causes the lid to seal to the base and drives the simultaneous filtration of a plurality of samples. | 10-09-2014 |
20140305228 | Debris Filter for Fluidic Measurement with Recess Size Decreasing in Fluid Flow Direction - A filter for filtering debris out of a fluid flowing along a fluid flow direction in a fluidic member of a sample separation device, the filter comprising a plurality of filter structures stacked along the fluid flow direction and each having pores with defined pore size, wherein the defined pore size of the stacked filter structures decreases along the fluid flow direction. | 10-16-2014 |
20140318278 | PARTICLE IMAGING UTILIZING A FILTER - A multiple layer test card including an input channel formed in a layer of the test card, an output channel formed in another layer of the test card, and a filter coupled between the input channel and the output channel to receive fluid from the first channel and collect white blood cells such that the collected white blood cells are optically visible proximate a first surface of the filter. | 10-30-2014 |
20140326080 | Ultrasonically Cleaned Low-Pressure Filter - A filter device having a sonotrode connected to a filtration assembly. The filtration assembly has a filter body having a fluid passage. The filter body has a filter across the fluid passage. The filter assembly has a resonant frequency and the sonotrode is adapted to vibrate the filter assembly at or near the resonant frequency. | 11-06-2014 |
20140326081 | USER REPLACEABLE FILTER FOR GAS SAMPLING SYSTEM - A replaceable filter integrated into the front panel accessory interconnect system of a gas sampling system includes a filter body mounted within a housing of the system. The filter body is insertable into a filter receptacle, and removable from the filter receptacle by a twist-lock mechanism. The filter body includes an integral accessory receptacle. An accessory connector is insertably connectable with the accessory receptacle. | 11-06-2014 |
20140373644 | DRIED SAMPLE CARRIER HAVING DISSOLVABLE SAMPLE REGIONS - Described are sample carriers and methods of extracting a fluid sample from a dried sample on a sample carrier. The sample carrier has a first carrier portion that receives a fluid sample, and includes a material that adsorbs the fluid sample and dissolves upon application of a solvent. A second carrier portion is attached to the first carrier portion and includes a material that is indissolvable in the solvent. The first carrier portion having a dried sample is dissolved into a solution upon application of the solvent. The solution can be analyzed to determine constituents in the extracted sample. The sample carrier can conveniently be in the form of a card or a dipstick. In alternative embodiments, a carrier portion that includes the dried sample is indissolvable in the solvent but is released from another carrier portion through application of a solvent to an intervening dissolvable carrier portion. | 12-25-2014 |
20150033879 | Container for collection of undisturbed soil samples, method of collecting, preparing and analysing undisturbed soil samples, and equipment for defining soil hydraulic conductivity - A container consists of two external cylinders: bottom and top, between which a middle cylinder, designed for a sample, is situated. A method of collecting, preparing and analysing undisturbed soil samples to define soil hydraulic conductivity generally bases on measurement of volume of water flowing through the sample as a function of time and temperature at a defined hydraulic drop. An equipment consists of a base ( | 02-05-2015 |
20150047441 | SAMPLE CARRIER FOR DRIED BIOLOGICAL SAMPLES - Described is a biological sample carrier based on a rigid hydrophilic object fabricated from a non-absorbing inert porous material. A biological fluid sample applied to the surface of the object is absorbed into the pores and constituents of the biological fluid sample remain in the pores after drying. Unlike a disc punched from a conventional dried blood spot (DBS) card, the object is easily handled. In contrast to DBS cards containing glass fiber structures that interact with basic analytes and other DBS card having adsorbing fibers that tend to separate blood constituents as the sample spreads through the fibers, the biological sample carrier is substantially inert to drug analytes. | 02-19-2015 |
20150075302 | FLUID FLOW SAMPLING DEVICE - A fluid flow sampling device comprises a housing and a sleeve disposed in the housing having openings corresponding to an inlet and an outlet of the housing. | 03-19-2015 |
20150128732 | PASSIVE DRY DEPOSITION (PAS-DD) COLLECTOR - A passive dry deposit (Pas-DD) air sampling device and method for sampling volatile, semi-volatile, or particulate matter in air. The Pas-DD device comprises a top cover plate, a bottom plate connected to and spaced a distance apart from the top cover plate, and at least one sampling media supported by the bottom plate and positioned within the device in an orientation accessible for collecting particles in the environment. The top cover plate and bottom plate may be oriented in parallel, and spaced apart a distanced that can be optimized for air sampling a broad size-range of depositing particles. The passive air sampling device and method disclosed are particularly useful for sampling air in regions where access to electricity is difficult, and for estimating atmospheric loadings of polycyclic aromatic hydrocarbons and other semi-volatile compounds. | 05-14-2015 |
20150293063 | MICROFLUIDIC DEVICES FOR LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY AND MICROSCOPIC IMAGING - This disclosure provides systems, methods, and apparatus for integration of microscopic imaging and liquid chromatography-mass spectrometry on a microfluidic device. In one aspect, an apparatus includes a first wafer, a second wafer, and an emitter. The emitter is disposed between the first wafer and the second wafer. The first wafer defines a sample input hole. The first wafer and the second wafer define a first channel, the first channel including a first end and a second end. The first end of the first channel is proximate the sample input hole. The first channel is configured to contain separation media. The second end of the first channel is proximate the emitter. | 10-15-2015 |
20150300928 | DIFFUSIVE SAMPLING DEVICE - A diffusive sampling device ( | 10-22-2015 |
20150323427 | METHODS AND APPARATUS FOR INDOOR AIR CONTAMINANT MONITORING - Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room. | 11-12-2015 |
20150330875 | EXHAUST GAS SAMPLING MECHANISM AND EXHAUST GAS ANALYSIS APPARATUS - To provide an exhaust gas sampling mechanism which can prevent condensed water droplets in exhaust gas from being sampled by a sampling probe and advantageously sample only the gas components of the exhaust gas to be measured, thereby maintaining a high response speed in analyzing the exhaust gas, the exhaust gas sampling mechanism includes the sampling probe disposed in a flow path through which the exhaust gas flows, for sampling the exhaust gas; and a gas-permeable cover which covers at least an upstream portion or a lateral surface portion of the sampling probe in the flow path, and has a water droplet removing structure. | 11-19-2015 |
20150330876 | COMPACTION TESTING SAMPLER ASSEMBLY - An in-situ roller compacted concrete testing sampler assembly is provided. The testing sampler assembly includes a first tube and a second tube. The second tube is configured to contain a roller compacted sample. The first tube and the second tube are configured to be placed in a loose roller compacted concrete lift for a construction site, and compacted simultaneously during the compaction of the loose roller compacted concrete lift. The second tube is configure to move with respect to the first tube to compact the roller compacted sample during compaction of the loose roller compacted concrete lift. | 11-19-2015 |
20150338323 | PORTABLE SYSTEM FOR AUTOMATED PREPARATION OF LIQUID AND/OR SOLID SAMPLES - Portable automated sample preparation device comprising a housing, said housing containing:
| 11-26-2015 |
20150369706 | METHODS AND SYSTEMS FOR PARTICLE COLLECTION AND ANALYSIS - An example method for collection and analysis of particles from a particle generating source enclosed within an enclosure having an inlet and an outlet is described. The method includes supplying filtered air into the enclosure through the inlet, extracting, with a vacuum source, an aerosol stream including particles from the particle generating source through the outlet, directing the aerosol stream from the outlet of the enclosure to the vacuum source via a sampling tower. The sampling tower includes at least one nozzle for sampling the aerosol stream. The method includes detecting, with a detection instrument coupled to the nozzle, at least one characteristic of the particles in the aerosol stream, and outputting data concerning the detected characteristic of the particles in the aerosol stream to a computing device. | 12-24-2015 |
20150377749 | SAMPLING APPARATUS FOR DETERMINING THE AMOUNT AND UNIFORMITY OF A DELIVERED DOSE OF DRUG AND RELATED METHODS - In an embodiment, the present invention is an apparatus, configured to collect emitted sample dose from a drug delivery device, wherein the sample dose is an aerosol, wherein the apparatus comprises a collection assembly and a removable plunger. | 12-31-2015 |
20160003719 | APPARATUS FOR PROVIDING OBJECT TO BE MEDICALLY EXAMINED BY BLOWING - An apparatus for providing an object to be medically examined by blowing is provided where air is blown into a container in which an object to be medically examined is stored, so as to make the uniform distribution state of the object to be medically examined from the inside of the container, thereby ensuring the sameness of the object to be medically examined, which is to be extracted from the container. | 01-07-2016 |
20160041073 | PASSIVE DIFFUSION SAMPLER - A passive diffusion sampler and kit that includes a passive diffusion sample bag comprising a regenerated cellulose membrane to allow for sampling of a broad spectrum of contaminants and VOCs. The sample bag is disposed in a rigid housing which protects the bag from tearing and also allows the housing to be inverted to suspend the bag upside down and provide a user access to a fluid outlet means on the bag for withdrawing a sample from the bag without agitating the sample. | 02-11-2016 |
20160054204 | Automatic Re-Loading Air-Sampling and Pneumatic Transport System - Embodiments of the invention collect solid, vapor, and/or biological components of the air in air-sampling cartridges that are then transported to an off-site location by pneumatic pressure. Operation proceeds by first collecting a sample of air in an air-sampling cartridge in a sampling position, then rotating a wheel assembly to move the now-used sampling cartridge into a transport position while simultaneously moving an unused sampling cartridge into the sampling position, and finally using pneumatic pressure to push the used sampling cartridge in the transport position to an off-site location via a transport tube. The sampling operation can begin again while the transport operation is in still in progress. These operations can be pre-programmed locally or triggered by remote communication. Continued operation is possible due to a plurality of unused air-sampling cartridges retained in the wheel assembly. Since operations can be triggered remotely and air samples are autonomously transported off site, embodiments of this invention eliminate an unnecessary risk to human health that is created by other air-sampling devices, which require an operator to be present at a potentially hazardous sampling site to activate the device or retrieve air samples. Additionally, embodiments of the invention can be installed pre-emptively to eliminate the risk to human health that is created when an operator must deliver a portable air-sampling device to a potentially contaminated sampling site. Furthermore, embodiments of the invention allow rapid retrieval of air samples following sample collection, which can expedite analysis and identification of aerosols and consequently help minimize human exposure to potentially dangerous and life-threatening chemical and biological contaminants. | 02-25-2016 |
20160091399 | FLUID WITHDRAWING, EXPELLING AND FILTERING APPARATUS - A fluid withdrawing, expelling and filtering apparatus includes a fluid container including a first chamber, a second chamber, and, a first through hole and a second through hole respectively disposed in communication between the first chamber and the second chamber, a filter device movable between a first position and a second position to open or close the second through hole of the fluid container and including a filter element mating with the first through hole, and a fluid withdrawing and expelling operator operable to withdraw and expel a fluid through the first chamber of the fluid container. | 03-31-2016 |
20160252435 | SOLID PHASE EXTRACTION CARTRIDGE | 09-01-2016 |