Class / Patent application number | Description | Number of patent applications / Date published |
073863120 | And separation | 35 |
20080264186 | ARTICLE SCANNER - A CTD and method of using a CTD for automatic sampling and analysis of target analytes, such as explosive materials, chemical warfare agents, and narcotics present on documents or other articles is provided. The CTD comprises an article processing mechanism, a swabbing medium, a thermal desorber, and a spectrometer. | 10-30-2008 |
20090000400 | METHOD FOR ATTACHING A SAMPLE TO A MANIPULATOR - The invention relates to the extraction of a frozen hydrated sample for TEM (Transmission Electron Microscope) inspection, such as a vitrified biological sample, from a substrate and the attaching of said sample to a manipulator. Such a hydrated sample should be held at a cryogenic temperature to avoid ice formation. By melting or sublimating a part of the sample material outside the area to be studied in the TEM and freezing the material to the manipulator ( | 01-01-2009 |
20090084198 | Atmospheric sampling apparatus with flexible line and probe - Arrangements for withdrawing carefully controlled samples from an active flue gas source are disclosed. A testing assembly is provided for connection to downstream processing equipment to obtain a sample from a gas stream. Included is a probe, a flexible sample line and a coupler joining the probe and the flexible sample line. At least one externally controlled or self-regulating heating cable is put in heating communication with the flexible line. A receptacle engaging the coupler is also provided for positioning the probe with respect to the flue gas source. | 04-02-2009 |
20090090196 | Preconcentrator and Detector Apparatus - IMS apparatus has a preconcentrator ( | 04-09-2009 |
20090090197 | Pre-concentrator and sample interface - This invention describes a multi-stage pre-concentrator device for use with a detector system. One pre-concentrator stage is detachable and may be used to collect sample remotely from the detection system. The detachable pre-concentrator stage mates with the detector system and can transfer its desorbed sample to another pre-concentrator stage which also incorporates the functions of a sample loop serving as an injection volume to the separation column of an analytical instrument. In one embodiment the fixed pre-concentrator stage serves as a sample loop that preferably integrates suitable valves with sorbent materials onto the same structure to minimise dead volume, maximise sensitivity, improving column loading efficiency, reducing duty cycles and minimising detection system response time. | 04-09-2009 |
20090255350 | CONDENSATION COLLECTION DEVICE AND METHODS OF USE - In certain aspects, the present disclosure provides a monitoring device that includes a condensation unit and a detector, such as a proportional detector. The condensation unit includes a condensation surface, a cooler abutting the condensation surface, and a collection vessel in fluid communication with the condensation surface. The monitoring device may include a decomposition reactor, such as an electrolytic reactor or a reactor that includes an active metal, such as an alloy of sodium and potassium. Particular implementations include a housing that at least partially encloses the condensation unit. The housing may include an aperture, which may be covered by a screen, mesh, or filter. The housing may also include a fan. The fan is used, in some examples, to draw air through the aperture. The monitoring device is, in some implementations, configured for remote operation, such as including a power supply or transmitter. | 10-15-2009 |
20100000340 | PROBE ASSEMBLY - In accordance with one embodiment of the present invention, a probe assembly comprising a flange assembly, a probe platform, a platform extension, an extension enclosure, and a fluid coupling assembly is provided. The fluid coupling assembly comprises a removable portion and a retained portion. An engaging interface of the retained portion cooperates with an engaging interface of the removable portion such that, with engagement of the removable and retained portions, respective fluid passages of the removable and retained portions form one or more integrated fluid channels configured to permit passage of fluid through the fluid coupling assembly. The probe assembly is configured such that the probe platform, the platform extension, and the removable portion of the fluid coupling assembly are interconnected and are configured to be withdrawn simultaneously from the probe assembly independent of the retained portion of the fluid coupling assembly. | 01-07-2010 |
20100031759 | DEVICES FOR SAMPLING AND CONFINING CHEMICAL CONTAMINATIONS, ASSOCIATED TRANSPORT DEVICE AND APPLICATION TO THE TRANSPORT OF CHEMICAL SAMPLES TO A CHEMICAL ANALYSIS UNIT - A method of sampling and confining chemical contaminations intended for the chemical analysis of contaminations in particulate and/or molecular form with prior adsorption by a support or trapping in a liquid. The adsorbent support or the contaminated liquid is then held in position in a closed box or sealed container having chemically inert walls. The outside of the closed box or sealed container is brought into contact with a gas at a higher pressure than the pressure inside the box or container and then the temperature inside the closed box or sealed container is regulated from an environment external to the gas. | 02-11-2010 |
20100126284 | METHOD, APPARATUS, AND SYSTEM FOR INTEGRATED VAPOR AND PARTICULATE SAMPLING - A detection system for identifying an unknown substance includes a detector assembly configured to receive a particulate or vapor and determine a substance contained within the collected vapor or particulate sample, and at least one heater element operatively coupled in flow communication with the detector assembly. The heater element is configured to attract an airborne vapor when the detection system is in a vapor mode, and desorb at least a portion of the attracted particulate when the detection system is in a particulate mode. | 05-27-2010 |
20100236341 | ACTIVELY COOLED VAPOR PRECONCENTRATOR - An analyte collection system device includes an active area that includes a plurality of perforations extending therethrough. The plurality of perforations are arranged to permit passage of an analyte fluid flow through the microscale plate. A heating element is provided for heating the active area, and a thermal distribution layer is disposed over at least a portion of the active area. For cooling the active area at or below an ambient temperature, an active cooler is provided. | 09-23-2010 |
20100269599 | SAMPLING VESSEL FOR FLUIDIZED SOLIDS - A method, apparatus and system for obtaining a sample of a fluid solids, such as a coke and hydrocarbon mixture, from a fluid solids process is provided. A sample vessel is provided that contains a first end, a second end, an aperture in the first end and an interior cavity. A cooling device can be provided for cooling material in the interior cavity of the sampling vessel. In operation, fluid solids can be routed through the aperture and collected in the interior cavity. The collected sample material can then be cooled by the cooling device and used for testing. | 10-28-2010 |
20100319468 | UNBURNED FLARE GAS SAMPLE SYSTEM - A sample system withdraws a sample of unburned flare gas from a feed line and delivers a liquid free sample to a high pressure gas chromatograph for analysis. In one embodiment, the sample system may be fitted with an automatic insertion system. In other embodiments, the sample system may be static or have manual insertion. The sample system includes a liquid separator to separate liquids from the sample. In one embodiment, the sample system is housed in an insulated and heated cabinet to prevent condensation of liquids as the sample moves through the sample system. | 12-23-2010 |
20110154918 | SURFACE SAMPLING MOBILE CHEMICAL DETECTION PROBE - A sampling device that contains a heated porous inlet and a transfer line. The device provides sample compounds present as vapor, liquid, or solid, in air, or on surfaces such as soil. The sample device can collect and deliver the sample to an analyzer in real time and can operate while in motion such as on a moving vehicle. The sampling device is especially useful to screen toxic and hazardous compounds that might be contaminating an inhabited area. | 06-30-2011 |
20110277563 | DEVICES FOR COLLECTING CHEMICAL COMPOUNDS - 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 a 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 |
20110308334 | APPARATUS AND METHOD FOR FILTERING SECTIONING WASTES OF A MICROTOME THAT ARE PRESENT IN AN AIR STREAM - An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream are described. The apparatus has an aspiration device with which sectioning waste can be aspirated from a blade region of the microtome with an air stream. A main filter and a prefilter are provided. A valve is provided for opening and closing an opening so that the air stream so that if desired an air stream can be directed through a filter insert in the prefilter for emptying the prefilter into the main filter. According to the method, an air stream that is used for aspirating sectioning waste from a blade region of the microtome is shut off immediately before emptying the prefilter. | 12-22-2011 |
20120090411 | SEMIVOLATILE ORGANIC CHEMICAL SAMPLING AND EXTRACTION TRANSFER METHOD AND APPARATI - One way of practicing the method of the invention is to follow these steps, not necessarily in the disclosed sequence: ( | 04-19-2012 |
20120152038 | HIGH VOLUME SAMPLING FRONT END COLLECTION DEVICE - A device for sampling surfaces for the presence of compounds is provided, the device comprising a housing having a proximal end adapted to receive a negative pressure gradient and a distal end adapted to contact the surfaces; a heating element spaced medially from the distal end, the heating element positioned within the housing; a primary filter spaced medially from the heating element, the primary filter encased by the housing; and a secondary filter spaced medially from the primary filter, the secondary filter removably received by the housing. Also provided is a method for sampling a surface for the presence of compounds, the method comprising contacting the surface for a time and with a pressure to dislodge the compounds from the surface; capturing first fractions of the compounds with a primary filter while allowing second fractions of the compounds to pass through the primary filter; heating the primary filter for a time and at a temperature sufficient to volatilize the first fractions; capturing the volatized first fractions and the second fractions with a secondary filter; and analyzing the secondary filter for the identity of the compounds. | 06-21-2012 |
20130091963 | HAND-HELD TRACE VAPOR/PARTICLE SAMPLING SYSTEM - A sampling system that contains filter components for collecting and concentrating vapor and particles in high-volume flows. The sample is then vaporized and delivered to a detector at a low-volume flow. The invention also has a sampling probe that contains an air-jet to help dislodge particles from surfaces and a heating lamp to help vaporize compounds on surfaces or objects. The sampling system is especially useful for screening for explosives and other illicit chemicals and toxins on people, baggage, cargo, and other objects. | 04-18-2013 |
20130098171 | APPARATUS FOR SAMPLING CARBON PARTICLE - Disclosed is an apparatus for sampling carbon particles emitted, for example, from a charcoal kiln, including: a sampling tube introducing samples including carbon particles from a carbon particle emission source; a first manifold collecting the samples introduced from the sampling tube; a first suction means transferring the samples from the carbon particle emission source to the first manifold through the sampling tube; a discharge tube discharging the samples from the first manifold; a second manifold collecting the samples introduced from the discharge tube and supplying them to a carbon particle collection unit; a second suction means transferring the samples introduced to the first manifold to the second manifold through the discharge tube; the carbon particle collection unit receiving the samples from the second manifold and collecting the carbon particles included in the samples; and a third suction means transferring the samples introduced to the second manifold to the carbon particle collection unit. | 04-25-2013 |
20130239704 | HAND-HELD TRACE VAPOR/PARTICLE SAMPLING SYSTEM - A sampling system that contains filter components for collecting and concentrating vapor and particles in high-volume flows. The sample is then vaporized and delivered to a detector at a low-volume flow. The invention also has a sampling probe that contains an air-jet to help dislodge particles from surfaces and a heating lamp to help vaporize compounds on surfaces or objects. The sampling system is especially useful for screening for explosives and other illicit chemicals and toxins on people, baggage, cargo, and other objects. | 09-19-2013 |
20130263680 | DEVICE FOR SAMPLING AND VAPORIZING LIQUEFIED NATURAL GAS - The device for sampling and vaporizing liquefied natural gas includes a circuit provided at one end with a device for collecting a sample of liquefied gas and conveying the sample to a measurement device. The circuit includes and passes through a device for vaporizing the sample. The device for vaporizing includes at least one vaporization chamber having a first convergent section portion and a second divergent section portion being consecutive along the circuit and shaped so as to vaporize all of the sample under supercritical conditions at a pressure of greater than 80 bar without fractionating. The vaporization chamber includes, at the entrance of the first convergent section portion, a port with a variable opening. The port is sized so as to limit the vaporization pressure to a maximum of 90 bar in conjunction with a fixed opening at the outlet of the second divergent section portion. | 10-10-2013 |
20130312542 | Liquid Natural Gas Conditioning Cabinet With Overpressure Relief Drain/Vent - A liquid natural gas sample conditioning cabinet structure with a covered vent disposed proximate to the cabinet floor for preventing pooling of and venting heavier-than-air hydrocarbon gases. | 11-28-2013 |
20140033835 | SOLID PHASE MICRO EXTRACTION (SPME) VACUUM INLET - A sample introduction system configured for introducing analytes of a solid phase micro extraction (SPME) sample into an analytical instrument system (e.g., mass spectrometer) is described. The sample introduction system includes a pressure vessel configured with an inlet port via which a probe portion (e.g., SPME fiber) of a SPME assembly is received into a sealed volume of the pressure vessel. The probe portion of the SPME assembly is coated with an extracting phase material, the analytes being absorbed into and/or adsorbed onto the extracting phase material. The pressure vessel is configured for providing an environment in which desorption of the analytes from the extracting phase material occurs at a gaseous pressure which is substantially less than atmospheric pressure (e.g., less than 100 mTorr). The desorbed analytes are then directed to the vacuum chamber of the analytical instrument system via an outlet port of the pressure vessel. | 02-06-2014 |
20150135861 | PRE-COLUMN HEATING OF MOBILE PHASE SOLVENT IN CHROMATOGRAPHY SYSTEMS - An apparatus for heating a flowing fluid includes a tubing assembly, a heater block made of thermally conductive material, and a heater cartridge in thermal communication with the heater block. The heater cartridge is configured to provide heat to the heater block for transfer to fluid flowing through the tubing assembly. The apparatus also includes circuitry in electrical communication with the heater cartridge to control a temperature of the heater block by controlling operation of the heater cartridge. The heater block is die-cast about the tubing assembly. | 05-21-2015 |
20150316452 | Apparatus and Method For Conditioning a Fluid Sample - The present invention as described herein provides a means to remove water vapor, entrained condensable liquids, and entrained condensable solids from an environmental fluid sample to prepare the vapor and/or condensate fractions of such fluid sample for chemical analyses. It substantially reduces equipment breakage risk from the fragile equipment required to be used in the current art, reduces differential pressure across the sample preparation system, avoids changes in chemical composition of the vapor and liquid samples while allowing direct analysis of the condensate stream or streams, allows for operation in a wider sample stream vacuum or pressure ranges, and reduces required maintenance downtime. | 11-05-2015 |
20160153879 | Sampling unit for concentrates preparation device | 06-02-2016 |
20160187242 | ROTATABLE SAMPLE INTRODUCING DEVICE - The present disclosure provides a rotatable sample introducing device for a trace detecting instrument including: a rotating rod, a sample introducing body and a rotating rod bracket, wherein the sample introducing body may be positioned inside the rotating rod bracket, the rotating rod passing through the rotating rod bracket and the sample introducing body may be fixed to the sample introducing body by a fastener, and the rotating rod may be rotatable. The rotatable sample introducing device for the trace detecting instrument provided by the disclosure has the following advantages in comparison with the prior art: simple structure, convenient operation, lower requirement for machine process, easy maintenance in later period and low cost. | 06-30-2016 |
20160189945 | SAMPLE INTRODUCTION DEVICE - A sample introduction device comprises a sampling unit, a gas suction pump, adsorption units, a piston cylinder and a desorption cylinder that comprises a desorption chamber, a carrier-gas inlet, a split/purge vent and an analyzer nozzle communicating with the desorption chamber. A heating film and a temperature sensor are provided on outer wall of the desorption cylinder. The piston cylinder above the desorption cylinder comprises two piston chambers, each of which is provided with the adsorption unit and in communication with the desorption chamber. The piston cylinder comprises a sample-gas inlet connected to the sampling unit and a gas-suction-pump orifice connected to the gas suction pump, each of which can communicate with both piston chambers. Each adsorption unit comprises an adsorption cylinder-like screen for holding adsorbents and a piston rod slidably mounted in the piston chamber. Each adsorption cylinder-like screen can simultaneously communicate with the sample-gas inlet and gas-suction-pump orifice. | 06-30-2016 |
20160377516 | SORPTION OF WATER FROM A SAMPLE USING A POLYMERIC DRYING AGENT - A method of extracting an analyte from a sample is described where the sample includes water. The sample and polymeric drying agent are added to a container. The polymeric drying agent includes a cationic monomer, an anionic monomer, and a crosslinker. The polymeric drying agent is configured to sorb water from the sample. | 12-29-2016 |
20170234840 | FLOW-FIELD-INDUCTED TEMPERATURE GRADIENT GAS CHORMATOGRAPHY | 08-17-2017 |
20190145866 | APPARATUS AND METHODS FOR COLLECTING EMISSIONS FROM A DEVICE | 05-16-2019 |
20190145871 | AIRBORNE PARTICLE DETECTION WITH SELECTIVE THERMOPHORETIC PARTICLE DEFLECTION | 05-16-2019 |
20190145872 | AIRBORNE PARTICLE DETECTION SYSTEM WITH ORIENTATION-DEPENDENT PARTICLE DISCRIMINATION | 05-16-2019 |
20190145873 | AIRBORNE PARTICLE DETECTION SYSTEM WITH THERMOPHORETIC SCANNING | 05-16-2019 |
20190145874 | THERMOPHORETIC PARTICLE DETECTION SYSTEM WITH VARIABLE CHANNEL GEOMETRY | 05-16-2019 |