| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073865500 | PARTICLE SIZE | 13 |
| 20080223154 | FLOW CELL, FLOW CELL MANUFACTURING METHOD AND PARTICLE MEASUREMENT INSTRUMENT - A flow cell | 09-18-2008 |
| 20090056478 | DEVICE FOR DETECTING DEFECTIVE SIEVES IN MILLING PROCESSES - Device for detecting defective sieves in milling processes, allowing to detect and warn of the passing of particles of larger size than those selected through the pre-established sieve and which takes place in a milling, cutting or shredding process or machine of products, wherein the corresponding dragging conduit of the milled product towards the respective outlet has a sampler, which is constituted by of small window wherethrough part of the product exits, falling into a special tray with a sieve, the gauge whereof having a gauge equal to that of the sieve corresponding to the milling process, that special tray diverting the larger sized particles towards a provisional tank wherein are located two detectors at different levels, to send signals that particles of larger size than that pre-established are passing. | 03-05-2009 |
| 20090078064 | INSTRUMENT FOR SIMULTANEOUS ANALYSIS OF MULTIPLE SAMPLES USING MULTIPLE DIFFERENTIAL MOBILITY ANALYZERS - A differential mobility analyzer that is capable of analyzing more than one sample simultaneously, comprising an aerosol generator, a particle classifier and/or a particle counter is disclosed. | 03-26-2009 |
| 20100139421 | EVALUATION METHOD FOR CHEMICAL SOLUTION, QUALIFICATION METHOD FOR CHEMICAL SOLUTION AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A method for evaluating chemical solution includes determining number of particles in liquid for each size of the particles by measurement, expressing a relationship between size of the particles and number of particles corresponding to the size by a function based on the number of particles for each size of the particles determined by the measurement, and evaluating influence of particles having size less than or equal to a measurement limit in the liquid based on the function. | 06-10-2010 |
| 20100180700 | PARTICLE COUNTER APPARATUS - The invention relates to a particle counter apparatus for counting particles in a fluid flowing in a pipe or a pipeline. The particle counter apparatus comprises a pipe portion through which the fluid flows, where the pipe portion is provided with a fluid sample outlet for withdrawal of a fluid sample. Furthermore the particle counter apparatus also comprises a first fluid transfer body extending from the fluid sample outlet to a particle counter, and a second fluid transfer body extending from the particle counter to a fluid return outlet mounted in the pipe portion downstream of the fluid sample outlet. In the pipe portion there is mounted a propeller unit comprising a propeller and a generator, with the result that particles are distributed uniformly in the fluid before the withdrawal of fluid samples, and electric power is provided for operation of the particle counter apparatus. | 07-22-2010 |
| 20100269600 | DEVICE FOR CHARACTERIZING A SIZE DISTRIBUTION OF ELECTRICALLY-CHARGED AIRBORNE PARTICLES IN AN AIR FLOW | 10-28-2010 |
| 20100282006 | DEVICE FOR CHARACTERIZING A SIZE DISTRIBUTION OF ELECTRICALLY-CHARGED AIRBORNE PARTICLES IN AN AIR FLOW - The invention relates to a device that can reliably characterize a size distribution of electrically-charged airborne particles in an air flow under both stationary conditions and transient conditions. The device comprises a particle charging unit, a first particle precipitation unit located downstream of the particle charging unit, a second particle precipitation unit located downstream of the first particle precipitation unit, and a data evaluation unit. The first particle precipitation unit is arranged to partially reduce the concentration of electrically-charged airborne particles having a size larger than a first particle size limit, and to generate a first output signal corresponding to the precipitation of electrically-charged airborne particles inside the first particle precipitation unit. The second particle precipitation unit is arranged to precipitate substantially all entering electrically-charged airborne particles, and to generate a second output signal corresponding to the precipitation of electrically-charged airborne particles inside the second particle precipitation unit. The data evaluation unit is arranged to calculate, based on the output signals of the particle precipitation units, a particle number concentration and an average diameter of airborne particles larger than the lower particle size limit. The device enables the simultaneous generation and recording of output signals, and consequently an immediate determination of the particle number concentration and the average particle diameter at any instant. | 11-11-2010 |
| 20110094320 | METHOD FOR EVALUATING DE-AGGLOMERATION/COAGULATION STABILITY OF AGGLOMERATES MATERIALS - The present invention generally relates to a method for evaluating de-agglomeration/coagulation stability of one or more agglomerates materials. | 04-28-2011 |
| 20120090413 | METHOD FOR DETERMINING THE FILTERABILITY OF BEER - The Invention relates to a method for determining the filterability of beer, said method having the following steps: a) taking a wort or beer sample, b) filtering the sample on a plurality of filters of varying pore size, c) determining the size of the particles on the filter surfaces of the filters, d) qualitative analysis of the particles on the filter surfaces and assigning the measured particles to certain substances or groups of substances present in beer or the wort, wherein evidence on the filterability can be obtained from the size of the particles of different substances or groups of substances of individual fractions. | 04-19-2012 |
| 20120137796 | Method for Determining the Surface Radius and/or Particle Density of a Powder - This invention relates to a method for determining the average surface radius ro and/or the density r of the particles of a nanopowder in a sample levitating in an electropositive plasma with a volume V formed between a first electrode powered by a radiofrequency voltage and a second electrode with a fixed voltage, in particular a ground one, characterised in that: V is the amplitude at the measuring time t of the radiofrequency voltage RF powering the first electrode when the powder is present in the plasma, V is the amplitude of said radiofrequency voltage powering the first electrode in the absence of powder in the plasma, V is the self-polarisation voltage of the first electrode at the time t when the powder is present in the plasma, V is the self-polarisation voltage of the first electrode in the absence of powder in the plasma, ΔA | 06-07-2012 |
| 20130081485 | AUTOMATED METHOD FOR QUALITY CONTROL AND QUALITY ASSURANCE OF SIZED BRIDGING MATERIAL - A method for quality control and quality assurance of sized bridging materials rotates a control sample having a fluid portion and a solids portion of sized bridging materials in a tubular container for a predetermined period of time. The control sample is then analyzed in a laser particle size analyzer to determine a particle size distribution for the control sample. A wet grinding sample having a fluid portion and a solids portion of the sized bridging materials is then rotated in the tubular container with a loose cylinder rod for a predetermined time to simulate borehole conditions. The wet grinding sample is then analyzed in the laser particle size analyzer to determine a particle size distribution for the wet grinding sample. The two particle size distributions are used to define a shift factor that represents the relative strength of the sized bridging materials. | 04-04-2013 |
| 20140216181 | Acute Medical Particulate Testing Device - An acute medical particulate testing device for determining particle shed from a medical device during implantation. The device includes a closed loop system through which a solution is forcibly passed. An inlet port allows a catheter-mounted medical device to be incorporated into the flow loop. At least one tortuous passage is provided to replicate the vascular pathway and tortuosity which simulates the turns and bends and rubbing that affect particulate release from an implantable medical device as it is passed through the vasculature. A debubbler is provided to remove air bubbles from the solution before it is passed into a particle counting device that counts particle shed from the medical device during the simulated implantation. A filter having desired porosity removes particles from the solution. A final filter system removes all particles and air bubbles from the solution before it is re-circulated through the loop. | 08-07-2014 |
| 20140260702 | Apparatuses, Processes, and Systems for Measuring Particle Size Distribution and Concentration - Apparatuses, methods, and systems are disclosed for analyzing particles from about 0.001 to about 1 μm in diameter by controlling a gaseous medium through which the particles travel so that properties of the particles, such as diameter, electrical mobility, and charge, are measured. One embodiment of the disclosed apparatuses includes a particle source generator, a nozzle, a chamber, an electronic gate, and a detector. Resolution of the measurements made by the disclosed apparatuses is improved by use of a mathematical deconvolution of a spread in arrival times generated by particles of different sizes and charge levels and non-ideal background flow velocity variations. | 09-18-2014 |
