Matches 151 - 200 out of 408 < 1 2 3 4 5 6 7 8 9 >
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5247461 Method and apparatus for coincidence correction in electrozone particle sensing  
A method of correcting first approximation data obtained from a conventional electrozone particle sensing apparatus includes steps for calculating factors for correcting for binary and tertiary...
5245290 Device for determining the size and charge of colloidal particles by measuring electroacoustic effect  
An apparatus for determining the particle charge and size distribution of particles in suspensions of arbitrary concentration is provided. The apparatus includes a cell for application of an...
5231865 Diffusion gas diluter  
A diffusion diluter is described and a method for using such apparatus with a condensation nucleus counter, wherein a particle containing reactive gas is diluted with an inert diluent gas to...
5219008 Ice dispenser for soft drink system  
An ice dispensing system for a soft drink dispenser employs a microphone adjacent a cup into which ice and soft drink are to be dispensed. The microphone senses sounds made by ice pieces dropping...
H001183 Laser scanner method for determining number and size of particles  
A method for counting the number and measuring the area of solid particles ranging in size from one micron to one millimeter across contained in a sample of a solids-loaded plastic matrix material....
5178836 Analytical method for particulate substances, relevant analytical equipment and its application system  
This invention relates to an analytical method and a relevant equipment for particulate substances in a sample with the detection of acoustic waves generated in the sample with the irradiation of...
5156039 Procedure for determining the size and size distribution of particles using sedimentation field-flow fractionation  
A procedure for determining particle size and particle size distribution data from sedimentation field-flow fractionation comprises carrying out a calibration run in which a sample of particles of...
5152175 Bubble measurement cell  
A bubble measurement cell is provided for measuring size distribution of gas bubbles in a liquid. The bubble measurement cell is adapted for insertion in a flotation column having a transparent,...
5133219 Dynamically balanced, differential gas adsorption appartaus  
An apparatus and method are disclosed for obtaining adsorption data to be used for surface area and pore volume analysis. The apparatus and method utilize the differential pressures between a pair...
5129268 Method of measuring average particle size of granular material  
A method of measuring an average particle size of granules. The method computes the average particle size on the basis of an n-order moment M n of an image of granules accumulated in a pile or of...
5121629 Method and apparatus for determining particle size distribution and concentration in a suspension using ultrasonics  
The present invention relates to method and apparatus for determining the size distribution and concentration of particles in suspensions, emulsions or aerosols utilizing ultrasonic excitation. The...
5109714 Method and means for dynamic measurement of rates of adsorption from solutions  
A method and apparatus for dynamic measurement of rates of absorption from solutions. The method has the advantage of avoiding the use of solvent normally used to establish a baseline. The method...
5109716 Apparatus and method for measuring adsorption/desorption  
The actual flow rate of gas to the solid-sample container or to the gas reservoir can be precisely obtained according to variances in the pressure of the gas reservoir without directly adjusting...
5095451 Centrifuge particle size analyzer  
The invention provides a method and apparatus for determining particle size distribution of particulate samples. Particle size distribution is determined by measuring particle concentration (based...
5090233 In-line analyzer for particle size distribution in flue gas  
A particle-size distribution analyzer in a vent gas or flue gas which can be in a gas carrying line of a dust- and/or mist-producing process is provided. The analyzer comprises: a series of...
5072626 Measurement of ultrafine particle size distributions  
A measurement system for microelectronic clean rooms to measure ultrafine particle size distribution in the range of 0.002 to 0.2 micrometers is provided which includes four screen diffusion stages...
5065634 Method and apparatus for the automatic determination of surface area  
A method for determining the surface area of a material by using the dynamic flow method, by continuously passing a stream of a gaseous mixture of known and constant composition consisting of an...
5058442 Apparatus for measuring liquid vapor adsorption and desorption characteristics of a sample  
In order to measure the adsorption and desorption characteristics of water vapor by a porous or powdery sample, the sample is placed in an automated device which measures the difference between an...
5059909 Determination of particle size and electrical charge  
A method for the determination of particle size and electric charge or zeta potential of particles dispersed in a fluid medium. The particle size and charge are determined from measurements of (1)...
5059310 Analytical sieve apparatus  
A vertical set of sieves receives the particulate material from a vibrating trough conveyor above the set and is vibrated by an agitator on the machine frame. The sieves are spread apart and then...
5007297 Particle size measuring system with automatic dilution of sample  
In a particle size measuring system with automatic dilution of the sample containing particles to be measured, the sample is diluted with ionized water in a mixing chamber while continuously...
4989464 Method and apparatus for determining particle size distribution  
A method and apparatus for determining particle size distribution of lightweight material such as shredded expanded polystyrene. An agitator cap assembly initially contains the material and...
4972730 System for dosing and determining saturation pressure in a volumetric sorption analyzer  
The invention provides improvements in a system for carrying out volumetric sorption analysis of porous materials. According to one aspect of the invention, the saturation pressure of the adsorbate...
4967608 Test chamber for particle emitters  
A test chamber is disclosed that permits standardized measurement of particles in the chamber environment. A device or structure that is suspected of the emitting particles and which is desired to...
4948497 Acoustically fluidized bed of fine particles  
An apparatus to acoustically fluidize a bed of fine particles comprises a generally box-shaped hollow chamber. An acoustic source is located at the bottom of the chamber and a convection inhibiting...
4920810 Sample warming device for surface area analyzer  
An automated device for warming and cooling a sample is disclosed, and is particularly useful in connection with a flowing gas surface area analyzer. The device is capable of directing a flow of...
4912987 Measurement of sizes of falling particles  
For measuring the sizes of particles in the falling state, electromagnetic waves having different frequencies are transmitted from a transmitter/receiver onto the particles in the falling state and...
4895034 Powder disperser for aerodynamic particle sizing system  
Powder dispersing methods and apparatus for use in an aerodynamic particle sizing system utilizing a time-of-flight measurement technique. The powder disperser provides an airborne stream of...
4890481 System for measuring foreign materials in liquid  
A system for measuring a foreign material in a liquid, includes a sampling section, vacuum deaerators, foreign material measuring sensors. The sampling section prepares a sample liquid containing...
4871248 Method of particle size determination  
A process for particle size distribution analysis of a particulate substance of particle size in the range of 0.05 to 50 microns, which comprises a photosedimentation method using a horizontal...
4829838 Method and apparatus for the measurement of the size of particles entrained in a gas  
Apparatus for measuring the size of particles entrained in a gas comprises an optical fibre probe having a hemispherical end and insertable into a stream of gas bearing entrained particles to...
4817446 Particle size distribution analysis  
A method for measuring and analyzing particle size distribution of extremely fine particles, such as blood corpuscles and cells, comprises collecting analyzing particle size distribution from the...
4794789 Rapid sediment analyzer  
The Rapid Sediment Analyzer provides information on the size distribution of a sample of finely divided particulate matter (e.g. sand) by monitoring the weight and the rate with which the particles...
4788443 Apparatus for measuring particles in a fluid  
An apparatus for measuring particles in a fluid comprises a laser source for producing a laser beam which is projected onto the fluid containing the particles. Laser light scattered by the...
4770051 Automatic system for analysis of ground material size  
An automatic system for analysis of sizes of a ground material includes a sampler for sampling and delivering the ground material in the form of a slurry. A sedimentation of cylinder is provided as...
4770052 Calculating aerosol droplet dimensions  
Aerosol droplet dimensions are important when aerosols are used as delivery means for such as labelled antibodies. Droplets from an aerosol containing solvent and solute are deposited onto a...
4769609 Measurement of ultra-fine particles utilizing pulsed corona signals  
In the known electrical mobility analyzer, a novel means for charged particle detection instead of measuring the low level current carried by the particles is provided. This detection is based on...
4764758 Incipient fire detector II  
An improved incipient fire detector that employs a sub-micrometer size particle detector of the Wilson cloud chamber type in conjunction with a continuous on-the-fly sequential selector valve...
4762010 Apparatus and method for adsorption and desorption studies, particularly for characterization of catalysts  
A sample is disposed in a sample chamber and is connected by a flow restrictor or "leak" to a bulb of known volume. In adsorption studies, an on/off valve is opened, allowing gas to flow from the...
4742718 Apparatus for measuring particle-size distribution  
An apparatus for measuring particle-size distribution which is constructed by arranging a measuring cell or cells in vertical direction, i.e. their longitudinal directions in alignment with the...
4739662 Ultrasonic particulate sensing  
An apparatus for identifying and determining the size of particulates in a flowing fluid by detecting the portion of an ultrasonic pulse scattered from a particulate at a preselected angle,...
4736311 Particle size distribution measuring apparatus  
An apparatus for measuring the size distribution of particles by making use of centrifugal force field, comprising a mechanism for making a suspension revolve, an optical unit for detecting a light...
4706509 Method of and an apparatus for ultrasonic measuring of the solids concentration and particle size distribution in a suspension  
Simultaneous measuring of the concentration of solids and particle size distribution in a suspension is effected by exciting the suspension by ultrasonic waves of a plurality of frequencies, the...
4704911 Apparatus for analysis of particulate material  
Apparatus for analysis of particulate material employs a stack of spaced sieves permanently joined to form a sieve column. Clean-out ports are provided for inter-sieve spaces. In one embodiment the...
4699015 Method for determining particle size and/or distribution  
There is provided an improved method for particle size and distribution determinations using a photosedimentometer having a centrifugal disc chamber for containing a spin fluid. The spin fluid must...
4670135 High volume virtual impactor  
A high volume virtual impactor for sampling atmospheric aerosols has a plurality of inlet nozzles and associated receiving tubes mounted in a common frame or housing having passageways which divide...
4666046 Shell sorter  
An improved shell sorter is disclosed. One improvement resides in the incorporation of a bandpass filter with a center frequency selected on the basis of the signals produced by a transducer in...
4633714 Aerosol particle charge and size analyzer  
An instrument for analyzing the size and charge of aerosol particles employs a dual beam laser Doppler velocimeter to track the motion of a particle while subjecting the particle to a sinusoidal...
4625552 Instrument for separating fluff components  
An instrument for separating out any one or more of the components of any given sample of fluff. The instrument includes a base having an annular opening formed in its upper surface. A spindle is...
4607526 Particle analysis system  
A system that is particularly useful in biological fluid analysis includes a face plate member and a mating flexible member, one of which has a plurality of passages. Selected motion of the...
Matches 151 - 200 out of 408 < 1 2 3 4 5 6 7 8 9 >