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| Number | Title | Issue Date |
| 7798020 | Fast response proportional sampling system and method for exhaust gas analysis A method and apparatus for proportional sampling of particulate material present in the exhaust gas emitted from an engine, in order to measure the mass of particulate material present in the exhaust gas, utilizes a mixing chamber (18) for mixing a portion of... | 09/21/2010 |
| 7717000 | Isokinetic sampling A method of sampling a multi-phase fluid stream is provided which comprises the steps of: sampling, with a sampling probe, a portion of the fluid stream; measuring the flow rate of said sampled portion; and measuring, independently of the sampling step, the total fl... | 05/18/2010 |
| 7565846 | Particulate sampler and dilution gas flow device arrangement for an exhaust sampling system An exhaust sampling system is provided that includes a sampler having a sample inlet for receiving an exhaust gas sample. The sampler includes a mixer for receiving the exhaust gas sample and a diluent to produce a diluted exhaust gas. The exhaust sampling system in... | 07/28/2009 |
| 7434449 | Exhaust gas analyzer An SOF measuring system that can continuously measure SOF and a soot measuring system that can continuously measure soot are connected with an exhaust gas line. The soot measuring system comprises a diluter that selectively dilutes either one of the exhaust gas and ... | 10/14/2008 |
| 7421911 | Duct probe assembly system for multipoint air sampling This invention details apparatus and methods for a unique integrated duct probe assembly system that enables multipoint sampling systems to cost effectively measure air parameters in partially confined locations such as ductwork, plenums, and air handlers with both ... | 09/09/2008 |
| 7404340 | Exhaust gas particulate measuring system A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient ... | 07/29/2008 |
| 7389703 | Sampler for engine exhaust dilution A partial flow sampling system includes a system inlet for receiving an exhaust sample flow from a sample inlet probe and transfer line. The system further includes a dilution air control system for controlling a dilution air flow rate, and a mixer. The mixer receiv... | 06/24/2008 |
| 7363828 | Aerosol measurement by dilution and particle counting The present invention includes an apparatus for aerosol measurement having a high concentration of particles the apparatus comprising a diluter for diluting the concentration of particles in a sample aerosol stream to form a diluted aerosol stream, and a sensor for ... | 04/29/2008 |
| 7347112 | Air sampler with integrated airflow sensing Air sampler with integrated airflow sensing. The air sampler according to at least some embodiments includes an air mover that is operable to move air over a sampling media. An integrated airflow sensor is in fluid communication with the air mover. The air mover ope... | 03/25/2008 |
| 7347945 | Method and an installation for separating out multiphase effluents The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste... | 03/25/2008 |
| 7340940 | Particulate deposit avoidance and probe positioning A perforated mixing plate and is fluid passage are used in conjunction with a dilution tunnel to prevent particulate matter from collecting on the sampling system components. An inlet of a sampling probe is offset from the centerline of the dilution tunnel to a loca... | 03/11/2008 |
| 7342504 | Monitoring system and method A monitoring system includes one or more monitoring devices, positioned in sewer manholes, storm drains, etc., and a remote monitoring station that communicates wirelessly therewith. The monitoring device may be an integrated unit, including sensors, a two-way telem... | 03/11/2008 |
| 7334461 | Method of measuring exhaust gas on internal combustion engines In a method of measuring exhaust gas of internal combustion engines, preferably in test benches, through the use of CVS (constant value sampling) full-flow systems, the exhaust gas of the internal combustion engine is mixed with combustion gas, preferably air, and t... | 02/26/2008 |
| 7302834 | Method for supplying an internal combustion engine with conditioned combustion gas, device for carrying out said method, method for determining the quantities of pollutants in the exhaust gases of an internal combustion engine, and device for carrying out said method A method and apparatus for determining the quantities of pollutants in the exhaust gases of internal combustion engines wherein an essentially constant and fully conditioned quantity of humidity and/or temperature-conditioned combustion gas is supplied to the intern... | 12/04/2007 |
| 7303728 | Fluid dispensing device The invention concerns a fluid dispensing device, characterised in that it comprises: a dispensing member (10) including: a conduit (42, 44) allowing through a transporting liquid (52), a valve (48) fixed to one of the ends (38) of... | 12/04/2007 |
| 7302313 | Air quality monitoring systems and methods An air monitoring system is disclosed having an air monitoring unit with at least one sensor for measuring data of an air quality parameter and a computer for storing the air quality parameter data received from the sensor. The air monitoring unit may use an install... | 11/27/2007 |
| 7299710 | 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-j... | 11/27/2007 |
| 7299690 | Particulate sampling system and method A method for controlling the flow through an exhaust sampling system includes sensing an operating characteristic of a power source, extracting a sample of an exhaust flow of the power source, combining the sample with an additional flow of fluid, and measuring a pa... | 11/27/2007 |
| 7293454 | Anti-aliasing acoustic filter in the presence of pulsating flow An exhaust flow measurement system uses a noise attenuation device to cancel exhaust gas pulsations at the harmonic frequency of a flow rate measurement transducer. ... | 11/13/2007 |
| 7270019 | Collecting line assembly for monitoring and locating leaks An assembly for monitoring and locating leaks in an installation includes a collecting line formed of a material that is impermeable to a substance to be monitored. The collecting line has a multiplicity of openings spaced apart in its longitudinal direction. The op... | 09/18/2007 |
| 7254212 | Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids A system, including a particulate matter analyzer and collecting filter, provides a method of analyzing and collecting samples from fluids, such as collecting particulate matter from air. A mass measuring unit and composition analyzing unit can be provided for eithe... | 08/07/2007 |
| 7243559 | Exhaust gas particulate measuring system A gas sampling system 36 capable of testing and certifying internal combustion engines 16 under transient conditions is provided and includes a partial flow dilution tunnel 38, master and slave mass flow controllers 80,60 and a transient ... | 07/17/2007 |
| 7222517 | Method for determining the characteristic properties of soot particles A method for determining the characteristic properties of soot particles originating from combustion processes utilizes the determination of the blackening of a filter paper. In order to allow for achieving a quick and relatively accurate determination of the partic... | 05/29/2007 |
| 7201071 | Wide range continuous diluter A wide range continuous diluter for diluting gases that contain small particles to allow subsequent measurement of the diluted gases with an instrument is provided. A dilution gas inlet receives a dilution gas, and a sample gas inlet receives a sample gas. A flow me... | 04/10/2007 |
| 7191671 | Particulate deposit avoidance and probe positioning A perforated mixing plate and is fluid passage are used in conjunction with a dilution tunnel to prevent particulate matter from collecting on the sampling system components. An inlet of a sampling probe is offset from the centerline of the dilution tunnel to a loca... | 03/20/2007 |
| 7185550 | Time domain resolving chemical sampler using sorbent material A fluid sampling device is provided comprising an elongated housing having a longitudinal axis, a plurality of alternating sorbent units and spacer units disposed longitudinally through the housing and slidably movable therethrough along the longitudinal direction, ... | 03/06/2007 |
| 7181952 | Characterization of mist sprays using a phase-doppler particle analyzer and an iso-kinetic sampling probe A method for quantifying droplet fluxes of a water mist spray uses different measuring apparatuses and compares the measurements of the two apparatuses with one another. One of the measuring apparatuses is an iso-kinetic sampling probe in which the air velocity of t... | 02/27/2007 |
| 7162933 | Gas sample conditioning system A gas sample and conditioning device for sampling gas in a storage or transport device and conditioning the gas to avoid dew point dropout of the gas. A chamber for regulating the temperature and the pressure of the gas is provided with external A.C. or D.C. power u... | 01/16/2007 |
| 7159475 | Apparatus and method of sampling semivolatile compounds An apparatus and method for sampling semivolatile compounds is disclosed. A collection bag is placed around an air conditioning vent on an aircraft. An opening in the collection bag receives air from the air conditioning vent into the bag. An exit in the collection ... | 01/09/2007 |
| 7159474 | Modular sampling device A sampling device is disclosed. The sampling device is portable and capable of taking two samples in parallel. The sampling device can include two filter locations that are subjected to similar environmental conditions. The sampling device design facilitates easy as... | 01/09/2007 |
| 7141090 | Active filter temperature control An emission sampling system includes an exhaust gas probe for sampling exhaust gas. A dilution gas source provides a dilution gas, and a mixing device is in fluid communication with the exhaust gas probe and the dilution gas source to mix the sampled exhaust gas and... | 11/28/2006 |
| 7140232 | Method and apparatus for multiple gas sensor A method and apparatus includes filter for removing a non-tracer gas from detection system and control unit for detecting the presence a low concentration tracer gas in the atmosphere. ... | 11/28/2006 |
| 7111503 | Sheet-form membrane sample probe, method and apparatus for fluid concentration analysis A sheet form membrane probe, an apparatus and method, wherein the probe includes a probe body, a sheet-form membrane secured to the probe body and including an open surface exposed to the exterior of the probe; a channel formed between the probe body and the membran... | 09/26/2006 |
| 7100459 | Method and apparatus for mixing gases A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber vi... | 09/05/2006 |
| 7071002 | Method and system for vehicle emission testing A method and system for vehicle emission testing measures pollutant concentration, but then provides for conversion of the measured pollutant concentration into its corresponding pollutant mass, thereby allowing for the calculation of a vehicle's emission test score... | 07/04/2006 |
| 7062953 | Sampling tube-type smoke detector In a sampling tube-type smoke detector equipped with a smoke detection device detects smoke particles contained in the air suctioned from a monitored area through a sampling tube by an aspirator positioned in the downstream. The smoke detection device the sampling t... | 06/20/2006 |
| 7059205 | System for extracting samples from a stream A system for extracting samples from a stream in a conduit utilizing a probe, placed in the stream and having a channel for passing samples from the conduit stream. First and second pressure taps measure the pressure inside and outside the probe. A feedback signal, ... | 06/13/2006 |
| 7044010 | Continuous fluid sampler and method An aseptic, continuous sampling arrangement used in a fluid transportation system, the arrangement including an elbow pipe and a septum cartridge. The sampling arrangement further including a needle, a tube, and a collection reservoir, arranged such that the collect... | 05/16/2006 |
| 7044009 | Dilution tunnel A dilution tunnel having a flow chamber structure with an inlet, an outlet, and an internal flow passage for a sample gas, the sample gas being adapted to flow in a flow direction between the inlet and the outlet. The flow chamber structure having a plurality of por... | 05/16/2006 |
| 7024950 | Method for intelligent sampling of particulates in exhaust lines An in-situ particle monitor in an exhaust controls a particle sampler so that when a predetermined particle threshold is detected, the particle sampler is caused to gather samples from the exhaust in real-time. Electrical control signals are monitored to correlate v... | 04/11/2006 |
