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| Number | Title | Issue Date |
| 7980147 | 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 samp... | 07/19/2011 |
| 7421852 | Media sampling device A monitoring device for use in monitoring the life of a filter used in the operating unit of an air conditioning system. The monitoring device has a support for use in attaching the device to the housing of the operational unit in the air conditioning system, the un... | 09/09/2008 |
| 7357042 | Filter contamination control device A biological specimen filter, for use in a biological specimen collection and transfer system having a vacuum source, comprises a tubular body having an exterior surface, an interior chamber, a first end configured to couple to the vacuum source, and a second end ha... | 04/15/2008 |
| 7337683 | Insitu inertial particulate separation system A sampling system for separating gaseous samples from a gas stream containing particulate matter and transporting the gaseous samples to a location outside of the flowing gas stream comprises an inertial filter mounted on the end of a hollow probe, the inertial filt... | 03/04/2008 |
| 7318911 | Membrane filtered pipette tip An apparatus and method of manufacture for a pipette tip having a membrane filter includes a pipette tip having an interior annulus for receiving an exterior perimeter of the membrane filter. A shear plate overlying the pipette tip defines an aperture having a dimen... | 01/15/2008 |
| 7309458 | Multi-sided immersion formation of composite structures and method Sample preparation device and method for desalting and concentrating samples prior to further analysis such as by MALDI TOF and/or electro-spray ionization (ESI) mass spectrometry. The device in accordance with an embodiment of the present invention contains a three... | 12/18/2007 |
| 7208124 | Microarraying process and apparatus A high throughput microarraying or colony picking robot with an automatic mechanism for exchanging pin heads and an automated washing and drying apparatus. The robot allows a dirty pin head to be deposited on the automated washing and drying apparatus for cleaning w... | 04/24/2007 |
| 7191670 | Automatic microbial air sampling system and method A method and system for automated remote microbial air sampling includes a sampling enclosure positioned outside an isolator. An infeed sample receiver passes sample containers into the enclosure. An atrium is located within the enclosure and exposes containers to a... | 03/20/2007 |
| 7189369 | Distribution apparatus and method for detaching distribution tip in distribution apparatus In the distribution apparatus and the method for detaching distribution tips of the present invention, the detaching plate provided with openings being larger in diameter than outer diameter of the nozzle and smaller in diameter than outer diameter of the distributi... | 03/13/2007 |
| 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 |
| 7135146 | Universal non-contact dispense peripheral apparatus and method for a primary liquid handling device A removable secondary liquid dispensing module for use with an existing, automated liquid handling system that defines a work area having a plurality of discrete work stations. Each of the work stations of the automated liquid handling system includes a lab ware sit... | 11/14/2006 |
| 7100461 | Portable contaminant sampling system The invention is a portable sampling system for sampling various media for contaminants. The media sample can include gases, liquids, and dry powders. The contaminant sample can include gaseous components, particulates of various kinds, and microorganisms. The syste... | 09/05/2006 |
| 7010991 | Surface particle detector A surface particle detector that includes a scanner slidable over a surface, a particle counter for counting particles passed therethrough, and a conduit connected between the scanner and the particle counter. The particle counter includes a pump for creating an air... | 03/14/2006 |
| 6964189 | Portable aerosol contaminant extractor A compact, portable, aerosol contaminant extractor having ionization and collection sections through which ambient air may be drawn at a nominal rate so that aerosol particles ionized in the ionization section may be collected on charged plate in the collection sect... | 11/15/2005 |
| 6958234 | Automatic microbial air sampling system and method A method and system for automated remote microbial air sampling includes a sampling enclosure positioned outside an isolator. An infeed sample receiver passes sample containers into the enclosure. An atrium is located within the enclosure and exposes containers to a... | 10/25/2005 |
| 6920802 | Adsorption trap for the detection of surface-active agents in gas streams A method and apparatus are provided for adsorbing surface-active compounds, such as corrosion inhibitors and water, from pressurized gas streams utilizing existing gas pipeline sampling valves. The apparatus includes an adsorption trap assembly containing an adsorpt... | 07/26/2005 |
| 6921513 | System for processing samples in a multichamber arrangement System for processing samples, in particular samples containing nucleic acids comprising a multichamber arrangement the chambers of which are used to receive liquids and it also concerns a pipetting device for removing liquids from the chambers and/or dispensing liq... | 07/26/2005 |
| 6898960 | Indoor air quality test apparatus A method that allows an individual to personally test for contaminants in an air supply. The method consists of purchasing the test kit, mounting the test kit to an existing particulate filter, placing the mounted test kit and particulate filter into the filter hous... | 05/31/2005 |
| 6769316 | Sampling cartridge for gas sampling apparatus A sampling cartridge for a gas sampling apparatus includes a shell having a cylindrical wall and a sampling window extending through the wall. A pair of spools are coaxially and internally positioned within the shell. The spools are independently rotatable relative ... | 08/03/2004 |
| 6627160 | Multiple channel pipetting device A multiple channel pipetting device and pipette shaft, in which each pipette shaft has a circumferential seal receptacle inside, at its upper end in which the circumferential plunger seal is positioned and in which the circumferential plunger seal, at lea... | 09/30/2003 |
| 6593146 | Metering device and method for operating a metering device A dosing device is provided and comprises a withdrawal container and a dosing means comprising at least one dosing unit which is a piston-cylinder unit designed as a disposable member. The piston-cylinder unit discharges into a receiving container and val... | 07/15/2003 |
| 6589483 | Liquid dispenser A liquid dispenser characterized by a dispensing head which is movable upward and downward as a whole and comprises a plurality of plungers supported by a plunger plate, drive means for moving the plunger plate upward and downward, a plurality of cylinder... | 07/08/2003 |
| 6540964 | Pipette for a pipette system A pipette for the handling of a syringe. The pipette has jaw chucks which are adjustably arranged with respect to the plunger receptacle, being pivotably mounted on a plunger-gripping device. The syringe is insertable with opened jaw chucks with the plung... | 04/01/2003 |
| 6520034 | High air volume to low liquid volume aerosol collector A high air volume to low liquid volume aerosol collector. A high volume flow of aerosol particles is drawn into an annular, centripetal slot in a collector which directs the aerosol flow into a small volume of liquid pool contained is a lower center secti... | 02/18/2003 |
| 6458267 | Sample fluid filtering device A filter device is described for obtaining a filtered sample of fluid for measuring purposes from a container or tube conduit. The device has a closed fluid circuit including a first filter element 4, a pump conduit having a pump 27 therein, and a second ... | 10/01/2002 |
| 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 |
| 6306350 | Water sampling method and apparatus with analyte integration A method and apparatus of sampling a body of water in which discrete samples are successively withdrawn from a body of water and analyte is extracted from the respective samples while integrating the analyte which is extracted from successive samples. A f... | 10/23/2001 |
| 6138521 | Sequential air sampler with automatic sample collector changer An air sampler having an automatic sample collector changer includes a supply magazine for holding a supply of fresh sample collectors and a receiving magazine for receiving and storing used collectors located aside a sampling station. A transfer mechanis... | 10/31/2000 |
| 6101886 | Multi-stage sampler concentrator Atmospheric Samplers are disclosed using aerogel filter material. The samplers include one or more cascaded impact sample stations with discs of aerogel as the targets. Ambient air carrying particulate matter is introduced into the sampler and the particl... | 08/15/2000 |
| 6033911 | Automated assaying device An automated assaying system is disclosed having a multiplicity of lumens oriented and controllable in clusters. The lumens are portrayed in a matrix, wherein each row of the matrix consists of one such cluster that is individually controllable for aspira... | 03/07/2000 |
| 6023982 | Sequential air sampler with automatic sample collector changer An air sampler having an automatic sample collector changer includes a supply magazine for holding a supply of fresh sample collectors and a receiving magazine for receiving and storing used collectors located aside a sampling station. A transfer mechanis... | 02/15/2000 |
| 6022510 | Gas-sampling means for a flue-gas analysis apparatus A gas-sampling tube for a flue-gas analysis apparatus having therein a particle filter and a measured gas line downstream of it. A heating jacket comprising an electric heater is located in the gas-sampling tube and extends axially co-extensive with the m... | 02/08/2000 |
| 5859375 | Apparatus for and method of collecting trace samples for analysis A hand held sampling apparatus and method are provided. The apparatus has a handle, a head connected to the handle and a mechanism for retaining a substrate on the head. The substrate is preferably a sheet-form flexible substrate which is mounted so as to... | 01/12/1999 |
| 5777241 | Method and apparatus for sampling and analysis of furnace off-gases A furnace system includes a furnace and a furnace monitoring and control system having a gas analyzer for analyzing the composition of furnace off-gases, and a sampling tube or probe used to obtain a high temperature off-gas sample for delivery to the gas... | 07/07/1998 |
| 5624554 | Collection and transfer device A collection and transfer device including a collection vessel having an opening on one end and a closure apparatus engageable therewith which has a collection device receivable within the collection vessel, and a passage therethrough for transferring a c... | 04/29/1997 |
| 5571946 | Apparatus for automatically measuring dust concentration in flue gas An apparatus for automatically measuring dust concentration in flue gas includes (a) a sampling unit for sampling dust in flue gas; (b) a measuring unit for measuring a gas flow of the flue gas; and (c) a feeding and weighing unit for feeding and weighing... | 11/05/1996 |
| 5553507 | Airborne particulate An airborne particulate sampling monitor for collecting particulate in either a solid, liquid or gaseous state. The monitor includes at least two intakes, each of which accepts airborne particulate. Paired with and coupled to each intake is an appropriate... | 09/10/1996 |
| 5493923 | Process and device for taking samples from waste gases The invention concerns a process and a device for taking samples in particular from waste gases containing substances of moderate and low volatility in a gas or aerosol phase. To this end, a partial current is diverted and conducted into a separation area... | 02/27/1996 |
| 5404762 | Quick-change filter cartridge A quick-change filter cartridge. In sampling systems for measurement of airborne materials, a filter element is introduced into the sampled airstream such that the aerosol constituents are removed and deposited on the filter. Fragile sampling media often ... | 04/11/1995 |
| 5396812 | Sample system Improvements are set forth in the present disclosure for the sample taking system. It normally uses a valve which can be switched between two operative positions one delivering a sample. The valve lock mechanism is incorporated. Additional safety is provi... | 03/14/1995 |
