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| Number | Title | Issue Date |
| 8166834 | In-vitro measurement of catamenial tampon systems An apparatus for testing of medical products such as a feminine hygiene product, is presented. The apparatus includes a body, a pump and a vaginal canal assembly. The body includes an internal chamber and a bottom surface having a bore open to the internal chamber. ... | 05/01/2012 |
| 8156829 | Methods of acoustic measurement and control of pharmaceutical sprays Methods of modulating a characteristic of a pharmaceutical compound spray by acoustic measurement and control of the pharmaceutical spray are disclosed. The methods include analyzing a selected characteristic of a pharmaceutical compound spray utilizing acoustic mea... | 04/17/2012 |
| 8047087 | Level sensor mounting A method for fixing a fuel level sensor in a fuel tank having an upper and a lower wall, the sensor having a foot and a top. The method fixedly secures the foot of the sensor to the bottom wall of the fuel tank through a molded-in retainer, and elastically fixes the... | 11/01/2011 |
| 8015888 | Thin-film sample holder A gas sorption sample chamber contains a plurality of thin-film substrates and fluidly couple said substrates to a Sieverts' device or other gas sorption analyzer. The thin-film substrates are held in proximity to each other in the sample chamber in a columnar arran... | 09/13/2011 |
| 7938031 | Flow cell, flow cell manufacturing method and particle measurement instrument A flow cell 1 is provided with a flow channel 2 which has rounded corners 3 in section. A measuring sample under high pressure is introduced into the flow channel 2 formed in the flow cell 1 and particles existing in the measuring ... | 05/10/2011 |
| 7665375 | Flow splitter for a solid particle counting system A solid particle counting system for measuring solid particle number concentrations from engine or vehicle exhausts in real-time includes a flow splitter having an inlet, a sample outlet, and a by-pass outlet arranged such that a main flow enters the inlet and chang... | 02/23/2010 |
| 7610822 | Method and apparatus for obtaining information about the size distribution of macroscopic particles in a liquid On the basis of a series of reflection measurements on a liquid, parameters are calculated which describe a particle size distribution of particles in the liquid. In each reflection measurement, a signal beam is generated in the liquid and a value of a property such... | 11/03/2009 |
| 7600441 | Comprehensive particulate matter measurement system and method for using the same A comprehensive particulate matter measurement system (CPMMS) that measures accurate mass size distribution of particulate matter (PM) in ambient air, and a method to measure the accurate mass size distribution of PM are provided. The CPMMS includes a mass-based PM ... | 10/13/2009 |
| 7597015 | Particle size sampler A particle size sampler includes a cylindrical housing with an inlet end and an outlet end. A pump, connected to an outlet pipe at the outlet end, draws air through the particle size sampler. Aerosols or other particles are removed from the air during a series of fi... | 10/06/2009 |
| 7485153 | Fluid free interface for a fluidic analyzer Instrument-cartridge interfaces for fluidic analyzers that have an instrument and a removable cartridge are disclosed. For example, and in one illustrative embodiment, the instrument may include a needle that is adapted to penetrate a septum on a removable cartridge... | 02/03/2009 |
| 7458287 | Particle sampling device A particle sampling device is disclosed for separating and collecting particles of at least first and second mass/size ranges from an ambient fluid (e.g. gaseous) medium in which they are present, particles of the first range being of generally larger size/mass than... | 12/02/2008 |
| 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 |
| 7430931 | Microgranulometry and methods of applications An apparatus and process for measuring the granulometry separations in discrete media and unconsolidated sediments for relatively small sample quantities (5 cc containers of drilling cuffings) is disclosed. A small diameter glass tube may be filled with a small amou... | 10/07/2008 |
| 7418881 | Dilution system and method A multi-stage dilution device, comprising a first stage dilution apparatus (A), and a second stage dilution apparatus (B), each of the stage dilution device comprising:—(i) a housing (1) having a diluent inlet (7); (ii) a sample inlet (2) havi... | 09/02/2008 |
| 7397232 | Coulter counter having a plurality of channels The present invention generally relates to a method for rapidly counting micron and/or submicron particles by passing such particles through any of a plurality of orifices simultaneously with an ion current and measuring the signal generated thereby. The present inv... | 07/08/2008 |
| 7387038 | Wide range constant concentration particle generating system A particle generating system includes an aerosol generator, an ejector diluter, and an aerosol diluter. The ejector diluter receives the generated aerosol and dilutes the aerosol to an expected raw concentration. The aerosol diluter further dilutes the aerosol to a ... | 06/17/2008 |
| 7384666 | Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device Fabrication of a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium includes depositing such particles having a single particle diameter and uniform structure onto a substrate with the transparent medium. A... | 06/10/2008 |
| 7367458 | Evaluation of particulate material The invention provides apparatus for determining and recording characteristics of particulate material in a batch of such material comprising a separator chamber having an inlet, means for reading an identifier on a batch of particulate material supplied to the inle... | 05/06/2008 |
| 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 |
| 7360403 | Measurement and control of asphaltene agglomeration in hydrocarbon liquids A method is provided for measuring the agglomerative state of asphaltenes in oil by applying an acoustic signal to the oil, detecting the scattered acoustic energy and using this detected signal to determine the relative particle size distribution of the asphaltene ... | 04/22/2008 |
| 7353709 | Method and system for determining material properties using ultrasonic attenuation A method and system is disclosed for determining a property of an object by measuring ultrasonic attenuation. With the proposed method, a measured ultrasonic interaction signal of the object is compared with a reference signal produced using the same generation and ... | 04/08/2008 |
| 7353687 | Reference leak A reference leak includes a leak layer formed of one of a metallic material, a glass material, and a ceramic material. The metallic material is selected from the group consisting of copper, nickel, and molybdenum. The leak layer comprises a number of substantially p... | 04/08/2008 |
| 7350536 | Vacuumized receptacle for sample collection A portable receptacle is vacuumized for use in taking an air or gas sample for subsequent examination to determine type, origin, components of the air or gas. Critical to a long shelf life of the vacuumized receptacle is a valve which virtually seals the receptacle ... | 04/01/2008 |
| 7347111 | Segregation testing apparatus for powders and granular materials A method and apparatus enables testing of sifting segregation of a particulate solid mixture in a storage bin or hopper. The apparatus makes use of a convergently and divergently angled hopper for collecting the mixture. The apparatus further makes use of a minimall... | 03/25/2008 |
| 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 |
| 7331233 | Method and apparatus for ultrasonic sizing of particles in suspensions A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the ... | 02/19/2008 |
| 7322926 | Centrifugation device with swingable sample holder A centrifugal device comprising: a rotor having a rotor shaft having a longitudinal rotor axis; a holder having an access end, and a holder axis; a location mechanism for locating the holder within... | 01/29/2008 |
| 7322431 | Advanced ultrasonic processor An ultrasonic processor for continuous processing of material is disclosed comprising an enclosed processor chamber (12) having opposed end wall (18) and (16) and an input (40) and an output (42) so that material to be processed ca... | 01/29/2008 |
| 7298127 | Particle detection Particle detection and characterizing apparatus has an insulating tube along which the particles flow. Five electrodes spaced along the outside of the tube are connected via amplifiers to a processor arranged to measure the charge on the particles. The apparatus als... | 11/20/2007 |
| 7281433 | Probe for three-dimensional measurements Touch probe including a fixed part (250), designed to be fastened onto a measuring machine or a machine tool, and a contact feeler (30) that is mobile and orientable on two independent axes (211, 212) along a multiplicity of directions indexed i... | 10/16/2007 |
| 7278825 | Method and system for regulating fluid over an airfoil or a hydrofoil The present invention features a fluid flow regulator that functions to influence fluid flow across an airfoil or hydrofoil, as well as various rotating or rotary devices, including propellers, impellers, turbines, rotors, fans, and other similar devices, as well as... | 10/09/2007 |
| 7275415 | Particulate-based flow sensor A fluid conveyance apparatus having more than one particulate matter sensing probe situated at two or more locations on the apparatus. Signals from the probes from at least two locations may indicate particulate matter flowing within a fluid through the conveyance a... | 10/02/2007 |
| 7270001 | Ultrasonic measurement of the running time and quantity for detecting the concentration of particles in a flowing fluid A method for ultrasonic measurement of the running time and quantity of a flowing fluid is provided, in which the running time of an ultrasonic signal (70) is measured counter to and in a direction of the flow (5), wherefrom the flow rate of the fluid ... | 09/18/2007 |
| 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 |
| 7264777 | Measurement of surface areas by polyvinylpyrrolidone sorption A method of quantitatively determining surface area of a sample uses polyvinylpyrrolidone (PVP) dispersed in a solution containing the sample, and determining the amount of PVP that has deposited on the sample. ... | 09/04/2007 |
| 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 |
| 7246532 | Flow indicator and apparatus for monitoring particles in air A flow indicator comprising a housing and a floater and adapted to draw an air sample is provided. The housing has at least one lower inlet port, an interior space, an upper outlet port, and a transparent window. The floater is disposed inside the housing and is ada... | 07/24/2007 |
| 7248975 | Real time monitoring of particulate contamination in a wafer processing chamber An apparatus and method for use is described which permits real time monitoring of build-up of particulate contamination in a wafer processing chamber. The apparatus is capable of monitoring particle build up in regions of a processing chamber which are not accessib... | 07/24/2007 |
| 7228742 | Pressure measuring system for vacuum chamber using ultrasonic wave Disclosed is a pressure measuring system for a vacuum chamber, in particular, a pressure measuring system for a vacuum chamber using ultrasonic wave. In this regard, there is provided a pressure measuring system for a vacuum chamber using ultrasonic wave, comprising... | 06/12/2007 |
| 7226434 | Safety shield A safety shield including a protective device is provided including a piercing member having a proximal end, a distal end and defining a longitudinal axis. A clip defines a first cavity dimensioned for movement of the piercing member therethrough and is oriented in ... | 06/05/2007 |
