Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8109129 | Portable nanoparticle size classifier A nanoparticle size classifier comprising a variable flow rate system with a single diffusion element 3 placed inside a cell 2 containing inlet 1 and outlets 6 and 7, an aerosol filter 8, flow meter 9, pump 10 ... | 02/07/2012 |
| 8015862 | Method and device for operating a particle sensor Method and device for operating a particle sensor arranged in an exhaust tract of an internal combustion engine of a motor vehicle. The particle sensor including a sensor carrier having two sensor electrodes arranged at a predetermined distance from one another on o... | 09/13/2011 |
| 8006541 | Device for detecting micro particles in gas and a method for fabricating the device A device for detecting micro particles in gas, which comprises: an inlet through which a gaseous sample including micro particles flows in; an outlet through which the sample flows out; a channel through which the sample flows from the inlet toward the outlet; a coo... | 08/30/2011 |
| 7536898 | Quantitative aerosol dilution system An inlet conduit (32) connects to aerosol source (100) of an initial particle concentration. A first flow path having particle counter (62) connects to inlet conduit (32). A second flow path (36) connects to the inlet conduit (3... | 05/26/2009 |
| 7437908 | Particle counter A particle counter has a saturator inhaling air in an atmosphere and vaporizing a working liquid therein; and an electrical detection unit electrically shielding an internal space thereof to maintain a temperature of the space to be constant, the air and vaporized w... | 10/21/2008 |
| 7430893 | Systems and methods for detecting contaminants The present invention relates to a system and method for sampling a gas flow to measure one or more contaminants within a semiconductor processing tool. The system includes a portable unit containing one or more dry traps, Tenax traps and, if desired, wet impingers.... | 10/07/2008 |
| 7428848 | Electrostatic sampler and method The present invention is an electrostatic collector for low cost, high throughput, high efficiency sampling and concentration of bioaerosols. The device is small enough to be portable and can be contained within or placed on the wall of a typical office or hospital ... | 09/30/2008 |
| 7383719 | Automated passenger screening system A screening system for screening passengers is disclosed. The system includes a floor grating having underlying rotating brushes that are installed in access ways at public venues (e.g., doors, turnstiles, escalators, etc.). As each passenger steps on the grating, t... | 06/10/2008 |
| 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 |
| 7334453 | Modular particulate sampler A gas sampler includes an impact disc for removing larger particles from a gas flow drawn by a pump and a filter for capturing smaller particles, also positioned in the flow path. The sampler is conveniently dissembled and reassembled to remove and replace the impac... | 02/26/2008 |
| 7318910 | Chemical dosimeter A chemical dosimeter comprising: a chamber defined by a heat resistant mesh; and a quantity of an adsorbent contained within the chamber; the arrangement being such that gas may diffuse into the chamber through the heat resistant mesh so that chemicals in the gas ma... | 01/15/2008 |
| 7318338 | Measuring device for measuring aerosol The invention relates to a measuring device for measuring aerosols, which measuring device comprises detection means (13), means (41) for conveying a signal from the detection means (13), a first insulation (43), a second insulation (4... | 01/15/2008 |
| 7299711 | Analyte separation utilizing temperature programmed desorption of a preconcentrator mesh A method and system for controllably releasing contaminants from a contaminated porous metallic mesh by thermally desorbing and releasing a selected subset of contaminants from a contaminated mesh by rapidly raising the mesh to a pre-determined temperature step or p... | 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 |
| 7298486 | Aerosol mobility size spectrometer A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes... | 11/20/2007 |
| 7293473 | Method and apparatus for sampling biological particles in an air flow A method and apparatus for sampling potential biohazard particles in an air flow tests for biological particles in the air flow; collects a sample of particulate matter from a specific portion of the air flow in response to an indication in the step of sensing of th... | 11/13/2007 |
| 7282676 | Integrating preconcentrator heat controller A method and apparatus for controlling the electric resistance heating of a metallic chemical preconcentrator screen, for example, used in portable trace explosives detectors. The length of the heating time-period is automatically adjusted to compensate for any chan... | 10/16/2007 |
| 7267017 | Method to test indoor air quality A method that allows an individual to personally test for contaminants in an air supply. The method consists of purchasing the test kit, placing the test kit on a device that produces air circulation and blowing air through the test kit. The test kit is then removed... | 09/11/2007 |
| 7265669 | Networks with sensors for air safety and security Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concen... | 09/04/2007 |
| 7261007 | Circumferential slot virtual impactor for concentrating aerosols A circumferential slot virtual impactor includes a disk-shaped housing with an endless circumferential slot for receiving aerosols. The slot forms an acceleration nozzle, and a receiver nozzle spaced apart radially inwardly from the acceleration nozzle exit. In an a... | 08/28/2007 |
| 7261764 | System and method for spatially-selective particulate deposition and enhanced deposition efficiency The present invention relates to a methods, apparatuses and systems that utilize electric currents to direct the deposition of particulate matter to various surfaces. ... | 08/28/2007 |
| 7251982 | Apparatus for analysis of aerosols There is provided apparatus for the measurement of particle mass concentration of an aerosol and which comprises at least one aerosol inlet and at least one electrostatic precipitator which directs an aerosol flow towards a mass sensor on which the particles are col... | 08/07/2007 |
| 7250138 | Method and system for detecting and recording submicron sized particles A system and method for detecting the presence of submicron sized particles in a sample taken from the environment includes a collecting a sample from the environment and purifying and concentrating the submicron particles in a sample based on the size of the partic... | 07/31/2007 |
| 7243560 | Method and apparatus for airborne particle collection Embodiments of an apparatus for collecting biological aerosols from an air sample include a hollow tube adapted for pumping a liquid through an interior volume to an outer surface and a collection surface disposed on the outer surface and adapted for collecting the ... | 07/17/2007 |
| 7235123 | Particle transport and near field analytical detection Particle collection, transport, and detection systems are disclosed. The systems are uniquely adapted for collecting or concentrating particles from a flowing medium and then transporting the collected particles to a desired location or for subsequent analysis. Elec... | 06/26/2007 |
| 7208030 | Suspended particulate analyzer An apparatus analyzes components of particulate materials suspended in air. The apparatus includes a container into which the air is introduced, a discharging electrode arranged in the container to electrically charge the particulate materials contained in the air, ... | 04/24/2007 |
| 7178380 | Virtual impactor device with reduced fouling A virtual impactor device having reduced fouling includes injection ports within the separation zone to redirect particles that otherwise tend to impact the walls of the separation zone and produce fouling. The virtual impactor device preferably also includes an acc... | 02/20/2007 |
| 7161143 | Method and apparatus to increase the resolution and widen the range of differential mobility analyzers (DMAs) A differential mobility analyzer (DMA) for separating charged particles or ions suspended in a gas and a method of using the DMA for separating such particles. The invention includes various means for increasing the resolution of the DMA by stabilizing the laminar f... | 01/09/2007 |
| 7159446 | Particulate matter concentration measuring apparatus A highly sensitive particulate matter concentration measuring apparatus for measuring a concentration of particulate matter in a sample gas collected in a collecting region formed on a collecting medium, the collecting region being formed by drawing the sample gas t... | 01/09/2007 |
| 7157919 | Method and system for detecting soot and ash concentrations in a filter A system and method for detecting soot and or ash loading within a filter is provided. The method comprises the steps of transmitting a source RF signal through a filter, measuring a reflected RF signal, measuring a transmitted RF signal, calculating reflected power... | 01/02/2007 |
| 7113277 | System and method of aerosolized agent capture and detection System and method of aerosolized agent detection. Multi-part collection tape is employed for capturing particles of interest for immediate analysis and optional forensic preservation and recording information related to capture and subsequent real-time analysis. Las... | 09/26/2006 |
| 7090718 | Device for collecting charged particles with the aid of an ionizer for purposes of analysis A device is provided for collecting particles from a gas for subsequent analysis with a particle analyzer. The device includes an ionizer with at least one ion-emitting unit which emits ions and a collector for collecting particles charged by the ions. An electrical... | 08/15/2006 |
| 7066037 | Method for measuring properties of a particle distribution A method and a device for measuring properties of a particle distribution, in which a parameter relating to the mobility of the particles is measured at one measuring point (302) and a parameter relating to the aerodynamic size of the particles is measured at... | 06/27/2006 |
| 7063097 | In-situ gas blending and dilution system for delivery of dilute gas at a predetermined concentration Apparatus and method for delivery of dilute active fluid, e.g., to a downstream active fluid-consuming process unit of a semiconductor manufacturing plant. The delivery system includes an active fluid source, a diluent fluid source, a fluid flow metering device for ... | 06/20/2006 |
| 7062982 | Method and apparatus for concentrated airborne particle collection An apparatus for collecting biological aerosols from an air sample is provided comprising an air intake assembly adapted to draw the air sample into the apparatus, a separation section coupled to the intake assembly and adapted to separate aerosol particles from the... | 06/20/2006 |
| 7052531 | Local cleaning system for constructing clean shielded space with no need for dedicated partition wall, using charged air shower unit providing ion wind and local exhaust device A local cleaning system which uses a charged air shower unit for forming a shield curtain by means of an ion wind, and a local exhaust device for exhausting the air containing dirt and dust settled down on the floor by the ion wind to construct a clean shielded spac... | 05/30/2006 |
| 7048787 | Air cleaner An air cleaner has an electron generator that includes a pointed head, a collector element and an electric circuit included in the electron generator for generating a negative potential on the pointed head and a positive potential on the collector element. The point... | 05/23/2006 |
| 7041153 | Method of measuring floating dusts In a method of measuring particles floating in an atmosphere, the atmosphere containing the particles is sucked into a container, ions are generated from a discharge electrode disposed in the container to charge the particles with the ions. A dust-collecting electro... | 05/09/2006 |
| 7029921 | Apparatus for rapid measurement of aerosol bulk chemical composition An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection devi... | 04/18/2006 |
| 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 |
