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Document Title |
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7021145 |
Acoustic transducer
An acoustic transducer for measuring a property of a fluid includes an acoustic pulse generator and buffer assembly. The buffer assembly is between the pulse generator and the fluid. The buffer...
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6976397 |
Multi-point sampling method for obtaining isokinetic fluid composition flows in a non-uniform velocity flow field
A method and system of obtaining a spatially representative sample of fluid flowing through a duct comprises providing a sample probe having a plurality of inlet ports in the duct, controlling a...
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6962090 |
Heated stainless steel emissions canister
An exhaust gas measurement system is provided that includes a probe to find a sample exhaust gas passageway for collecting exhaust gas. A stainless steel canister is fluidly connected to the probe...
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6934643 |
Ultra accurate gas injection system with vehicle transient air simulation
An ultra accurate gas injection system with vehicle transient air simulation is provided. The device includes an input device, at least one mass flow device, an air flow device, a controller, such...
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6904815 |
Configurable multi-point sampling method and system for representative gas composition measurements in a stratified gas flow stream
A method and system of obtaining a sample of fluid flowing through a duct comprises determining an average concentration of a component species of the fluid during a test including determining...
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6823748 |
Active pulsation cancellation device for diesel particulate sampling systems
A particulate sampler is provided for conveying exhaust gas from exhaust gas source to analysis equipment. The particulate sampler includes a probe for receiving the exhaust gas and a transfer tube...
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6742404 |
Hybrid passive/automated flow proportional fluid sampler
The invention discloses a flow proportional fluid sampler. A turbine pump unit has a pump that is powered by the fluid flow of the test site, such as a stream, thereby eliminating the need for...
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6729195 |
Serial multistage aerosol diluter and control system
An exhaust gas sampling system for use in connection with the sampling of an internal combustion engine exhaust gas streams has a plurality of diluters arranged in a serial array along an axial...
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6615679 |
Ensemble manifold, system and method for monitoring particles in clean environments
A system for detecting particles in a clean environment includes and ensemble manifold having a plurality of sample ports, a delivery port, and flow junction having no open-close valves or other...
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6609433 |
Combustible gas measurement apparatus and method
Discloses a system for the analysis and measurement of selected gases such as combustible gases contained in a gaseous sample to be analyzed including a mixing manifold arrangement to mix the...
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6584865 |
Absolute reference aerosol sampler
An absolute reference aerosol sampler system and method based on isokinetic and isoaxial sampling principles wherein the position of a collection inlet for an aerosol sampling head is adjusted...
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6532423 |
Method for determining fluid flow characteristic curves of heat-dissipating system
A method for determining a plurality of fluid flow characteristic curves of a heat-dissipating system, wherein each fluid flow characteristic curve is a relationship curve of one of an air pressure...
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6505524 |
Mixing system and method
A mixing system with proportional dilution gas sampling, and associated proportional dilution gas sampling methods are provided. The mixing system includes a mixing portion, a gaseous inlet, a...
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6451201 |
Distributed on-line integrity testing for immersed membranes
In an apparatus for providing a continuous integrity test for suction driven filtering membrane assemblies 10, a monitoring line 32 diverts a portion of permeate to a monitoring device 30 ...
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6435004 |
Apparatus and process for aerosol size measurement at varying gas flow rates
A measuring system and process for measuring the size distribution of particles in an aerosol with a time-varying flow utilizing a measuring instrument that utilizes a time-invariant flow rate is...
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6431014 |
High accuracy aerosol impactor and monitor
An aerosol impactor and monitor has a plurality of impactor stages, each of which will receive an aerosol and classify the aerosol according to particle size. The impactor stages have nozzle plates...
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6405577 |
Flow rate detector mechanism with variable venturi and exhaust gas sampling method using the same
A flow rate detector mechanism using variable Venturi therein, comprising: a variable flow rate generator, comprising: a core 11; and a variable Venturi 12; wherein a throat (flow passage)...
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6370936 |
Sampling apparatus for exhaust gas
A sampling apparatus for exhaust gas is capable of calibrating two flowmeters each other easily and precisely. A diluting air supply passage for diluting the sampled exhaust gas is connected to an...
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6365107 |
Headspace instrument
A headspace instrument ( 10, 70 ) operates to equilibrate a vapor phase of a headspace sample in a sample loop ( 40, 74 ). The sample is equilibrated by flow through the headspace between variable...
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6276195 |
Three capillary flow-through viscometer
A method and apparatus for measuring the viscosity of a sample solution which comprises an input tube for transporting a sample solution flow towards a splitter for diverting input flow into two...
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6274087 |
Blood cell analyzer with tube holder and cap piercer
The invention relates to a diagnostic medical device, and in particular to a blood cell analyzer which by manual or automatic operation withdraws and analyzes a minimal amount of blood that is...
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6223590 |
Volatilization device for liquids
The process is disclosed for transforming a liquid mixture sample in a pressurized container to a vapor phase sample of substantially the same concentration as in the liquid mixture which includes...
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6200819 |
Method and apparatus for providing diluent gas to exhaust emission analyzer
An apparatus adapted for analyzing exhaust emissions by using a small fraction of a continuously-extracted exhaust sample combined with a pollutant-free diluent through a system of critical flow...
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6139801 |
Gas collecting apparatus
The present invention relates to a gas collecting system collecting an inspection objective gas, such as a toxic gas discharged into an ambient air, and particularly to a gas collecting system...
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6041668 |
Method and apparatus for taking samples in a gas outlet pipe of a liquid/gas separator fed with an oil well effluent
A sample of fluid such as a gaseous fluid leaving a liquid/gas separator in a surface installation of an oil well, is taken continuously via a sampling tube. The tube opens out on the axis of a gas...
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6016711 |
Mobile vehicle emissions sampling system
A sampling device for collecting exhaust samples that are proportional in amount to the total amount of exhaust during a given sampling period. A sample flow is pumped through the device, which has...
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5996422 |
Buck air sampling pump flow control algorithm
A method for controlling an air sampling pump includes establishing from empirical measurement a family of sets of data relating speed of the pump to the flow rate of air through the pump as a...
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5996420 |
Manifold systems and methods for delivering samples of microelectronic device processing gases to gas analyzers
Manifold systems and methods for delivering samples of microelectronic device processing gases to gas analyzers include a first passage that receives microelectronic device processing gas from a...
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5968452 |
System for controlling flow of a diluted sample and determining pollutants based on water content in engine exhaust emissions
A system is provided in an exhaust emission sampling system for controlling a flow controller in order to compensate for the effects of changing water vapor content in a diluted sample having a...
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5942698 |
Detecting and measuring liquid flow in remote sewer structures
In the particular embodiments described in the specification, a virtual sewer flow monitor detects flow rate and depth information periodically and supplies it to a scattergraph generator and a...
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5900373 |
System of inoculation of biological samples onto the agar surface in Petri capsules
It is done by means of a device inoculating the sample onto the gel of a Petri capsule, the application pressure of the outlet being very light in order not to harm the gel. It includes a syringe...
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5892160 |
Isothermal flow controller for air sampler
An air or gas sampling device utilizes a small tube calibrated under isothermal conditions. The relationship of pressure at the input end of the tube to flow is plotted and stored in a...
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5856623 |
Particle counter with sampling probe having adjustable intake area
A particle counter for counting a number of particles in an air sample includes a sampling probe connected to a counter body with an intake section of the sampling probe having an adjustable area....
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5846831 |
Methods and systems for controlling flow of a diluted sample and determining pollutants based on water content in engine exhaust emissions
In a first embodiment of the present invention, a control method and system are provided in an exhaust emission sampling system for controlling a flow controller in order to compensate for the...
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5811696 |
Isokinetic fluid sampling method
A sampler for obtaining an isokinetic sample of a flowing fluid. A liquid-filled, fluid-tight container has a deflated bag within it. The sampler is positioned within the flowing fluid stream, and...
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5756360 |
Method and apparatus for providing diluted gas to exhaust emission analyzer
An apparatus and method are adapted for analyzing exhaust emissions by using a small fraction of a continuously-extracted exhaust sample combined with a pollutant-free diluent through a system of...
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5693894 |
Fluid controlled isokinetic fluid sampler
A sampler for obtaining an isokinetic sample of a flowing fluid. A liquid-filled, fluid-tight container has a deflated bag within it. The sampler is positioned within the flowing fluid stream, and...
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RE35639 |
Method and apparatus for measuring ratio of mass flow rates and energy flow in a gas pipeline
The present invention is a method and apparatus for monitoring in real time the mass and energy flow rate of a gas through a pipeline. The invention determines the mass flow ratio of a pipeline gas...
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5635652 |
Automated gas measurement system
A automated system includes a set of probes used to conduct gas flow measurement and sample gas collection. A mobile unit transports the automated gas measurement system to the test facility, and...
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5596154 |
Dilution control method and apparatus
An apparatus and method for maintaining a constant dilution ratio for a dilution probe used in a continuous emission monitoring system. The apparatus includes a regulator for regulating the flow of...
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5556600 |
Method and apparatus for enhancing production of TiO.sub.2
A method and apparatus for producing TiO 2 by reacting O 2 and TICl 4 in a reactor tube wherein pressure fluctuations in the flow of fluids through the reactor tube are sensed and output signals...
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