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| Number | Title | Issue Date |
| 7765881 | Programmable, digital vacuum-operated liquid sampler A programmable liquid sampler for obtaining and digitally analyzing multiple, sequential samples in real time from an external source of liquid to be analyzed comprises an adaptive feedback algorithm for correcting sample weight measurements occasioned by vacuum del... | 08/03/2010 |
| 7587949 | System and method for stimulation and characterization of biologic materials A multi-sample biologic material stimulation and characterization system includes individual flow paths for each sample. Each individual flow path can maintain sterile conditions and may be chemically monitored. The mean flow rate and pulsatile flow rate through eac... | 09/15/2009 |
| 7555964 | Phase separation system and housing therefore A method and apparatus for the physical separation of components from a multi-phase fluid stream into its component phases. More particularly, the invention relates to a housing for a phase separation medium which allows one to change the phase separation medium wit... | 07/07/2009 |
| 7361509 | Dynamic metered fluid volume determination method and related apparatus A method for dynamically determining the volume of a liquid dispensed by a metering system, the metering system including a metering pump, a pump motor, a sensor, and a conduit interconnecting the pump and a metering probe. The method includes the steps of aspiratin... | 04/22/2008 |
| 7341669 | Filter methods to capture a desired amount of material from a sample suspension for monolayer deposition, analysis or other uses The present invention is a filter apparatus with methods to capture a desired amount of material suspended in a liquid or gas for monolayer deposition, analysis or other uses. Novel filter devices are employed to capture material which may be used for the purificati... | 03/11/2008 |
| 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 |
| 7281440 | Particulate sampling system having flow check device A particulate sampling system is disclosed. The particulate sampling system may include an exhaust sampling unit and a dilution flow assembly to supply dilution air to the exhaust sampling unit. The particulate sampling system may also include a total flow assembly ... | 10/16/2007 |
| 7241630 | Paramagnetic particle detection A method of determining the number of magnetic particles within a sample using a tuned circuit having a capacitor and a coil. The method comprises: a. determining the difference in the resonant frequency of the tuned circuit when t... | 07/10/2007 |
| 7222526 | Liquid measurements using capacitive monitoring An apparatus for determining the volume of liquid in a probe tip of an aspirating or dispensing probe, such as those used in a diagnostic analyzer, includes: two electrodes on opposite sides of the probe tip and the electrodes and liquid form a variable capacitor; a... | 05/29/2007 |
| 7198105 | Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p... | 04/03/2007 |
| 7150190 | Method and apparatus for capacitively determining the uppermost level of a liquid in a container A liquid level sensor confirms actual physical contact between a probe and a liquid by verifying that any change in capacitance of the sensor is constant over a given time period and thereby is not caused by spurious electrical disturbances or other measuring irregu... | 12/19/2006 |
| 7140436 | Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p... | 11/28/2006 |
| 7124039 | Device comprising detecting means for hydraulic or chemical-physical properties of a fluid A device has a body defining a space for the passage of a fluid, as well as a detector of a hydraulic or chemical-physical property of the fluid in the space. The detector is connected to a control unit by means of a wireless communication system that includes a dat... | 10/17/2006 |
| 7101510 | Matrix storage and dispensing system The present invention provides a system and process providing variable access to, as well as quick and accurate dispensing of, numerous selected reagents from a mass storage arrangement. According to one embodiment, an array of reagent dispensers is supported over a... | 09/05/2006 |
| 7097808 | Automatic analyzer An automatic analyzer analyzes a measurement item by making a sample and reagent react with each other and measuring the reaction result. This apparatus allows parameters associated with reagent dispensing executed by a reagent dispensing mechanism to be set as a di... | 08/29/2006 |
| 7093507 | Pipette control arrangement A pipette control arrangement consists of a housing assembly adapted for operatively housing a pump assembly and for operatively connecting a pipette to the pump assembly via a flexible air tube. The pump assembly is adapted to independently accommodate a plurality ... | 08/22/2006 |
| 7073402 | Air sampler with parallel impactors An air sampler is designed for a predetermined flow rate. The air flow is admitted to at least two impactors operating in parallel. Preferably the inlet nozzles and the outlet orifices of each impactor are sized to achieve predetermined cut-off sizes of particles; p... | 07/11/2006 |
| 7043912 | Apparatus for extracting exhaust heat from waste heat sources while preventing backflow and corrosion In a waste heat recovery system wherein a heat exchanger derives heat from an engine exhaust, a venturi is fluidly connected to an engine exhaust port so as to thereby increase the flow rate and reduce the pressure in a manifold which is fluidly connected between th... | 05/16/2006 |
| 7038419 | Compressor drive A fluid flow control system for an electromagnetic pump having an electromagnetic drive (11) and a compressor (6). The control system established a required current in the compressor coils (10) to control the position and movement of the actuato... | 05/02/2006 |
| 7010464 | Mobile HVAC cavity test device, method, and computer product A mobile testing apparatus, method, and computer product that performs high speed testing of mobile pressure devices using high speed totalization, where testing of multiple devices may be done concurrently. Test results are communicated to a central console using a... | 03/07/2006 |
| 6997201 | Wastewater source control system A wastewater control system for use with a sewer service line conducting a flow of wastewater from a building to a sewer main. A flow control device is installed in the sewer service line; and an actuator, in electrical communication with the sensor, is connected to... | 02/14/2006 |
| 6987396 | Sensor array for electrochemical corrosion monitoring A sensor array for measuring localized corrosion based on electrochemical reactions is disclosed. The sensor has an array of electrodes that are made from the material of interest. The electrodes are electrically insulated from each other and arranged so that a smal... | 01/17/2006 |
| 6935198 | Sampling apparatus having a linear indexing sample collection station A sampling apparatus is characterized by a sampler and a sample collection station. The sampler is stationary and periodically delivers discrete product samples to a stationary inlet to the sample collection station. The sample collection station includes a deck hav... | 08/30/2005 |
| 6925895 | Sample collection system A system for collecting a representative, non-contaminated sample includes a sample intake positioned in a chosen location within a body of liquid. A first conduit section transfers a sample, which has been withdrawn from the body of liquid, from the sample intake t... | 08/09/2005 |
| 6905594 | Filter apparatus and methods to capture a desired amount of material from a sample suspension for monolayer deposition, analysis or other uses The present invention is a filter apparatus with methods to capture a desired amount of material suspended in a liquid or gas for monolayer deposition, analysis or other uses. Novel filter devices are employed to capture material which may be used for the purificati... | 06/14/2005 |
| 6741056 | Air sampler with compensating pump motor speed A constant flow of air through a personal air sampler is provided regardless of changes in the air flow path, by altering the pump speed as a function of the power taken by the pump. The characteristics of the pump are precalibrated to provide a constant used togeth... | 05/25/2004 |
| 6564655 | Analytical sampling device Apparatus for sampling a liquid, said apparatus comprising: i) a sampling device capable of automatically taking a known volume of liquid from a source; ii) fixing means connected to said sampling device and removably attachable to a solid phase extraction (SP... | 05/20/2003 |
| 6546812 | Venturi flowmeter for use in an exhaust sampling apparatus An apparatus for sampling the emission content of an exhaust gas from an exhaust source has an exhaust inlet adapted for connecting the exhaust source with a venturi metering device for measuring the flow rate of the exhaust gas. The venturi metering devi... | 04/15/2003 |
| 6521187 | Dispensing liquid drops onto porous brittle substrates A system for aspirating and ejecting microvolume drops of liquid onto porous sites of a substrate wafer is presented. The system includes a microdispenser employing a piezoelectric transducer attached to a glass capillary, a means for priming and aspirati... | 02/18/2003 |
| 6499365 | Electronic metering device An electronic metering device with a drive comprising an electric drive motor, at least one displacement device comprising a piston fixed to an axle drivable by the drive, for metering the fluid, and an electronic control for the drive motor, with a trans... | 12/31/2002 |
| 6453759 | Apparatus for and method of taking a predeterminable volume of a sample of medium The apparatus makes it possible to change a desired sample volume--even during operation--in a simple manner without mechanical intervention, with any accumulation solids of a sample contained in a sample collecting vessel being avoided, so that a sample ... | 09/24/2002 |
| 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 volume chambers (28, 50, 86, 90). The volume of the variable v... | 04/02/2002 |
| 6318190 | Systems for collecting fluid samples having select concentrations of particles Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample... | 11/20/2001 |
| 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 stored in open or sealed vials. The analyzer includes a manual... | 08/14/2001 |
| 6244119 | Multichannel pipette system and pipette tips therefor The present invention relates generally to a multichannel pipetting system that can be used with a plurality of well plates used for medical, biological or biochemical research involving liquid materials. The system includes a multichannel pipettor and no... | 06/12/2001 |
| 6216548 | Method for sampling particles present in a processing chamber An apparatus for sampling particles from a processing chamber used in the fabrication of semiconductor devices includes a sampling line sequentially having a sampling port, a sampling air valve, a particle sampler and an isolation valve. A pumping line is... | 04/17/2001 |
| 6203759 | Microvolume liquid handling system In a microvolume liquid handling system, a system reservoir is connected with tubing to a pressure control system for controlling the liquid system pressure in the system reservoir. The system reservoir is coupled to one or more microdispensers through a ... | 03/20/2001 |
| 6178831 | Composite wastewater sampler A composite wastewater sampler includes a flow-through-chamber having an inlet port and an outlet port with a path between them that gradually increases in depth and width and then decreases in width. It is shaped to cause fluid to: (1) flow from the inle... | 01/30/2001 |
| 6119532 | Apparatus and method for particle sampling during semiconductor device manufacturing An apparatus for sampling particles from a processing chamber used in the fabrication of semiconductor devices includes a sampling line sequentially having a sampling port, a sampling air valve, a particle sampler and an isolation valve. A pumping line is... | 09/19/2000 |
