Apparatus and method for measuring particles in polydispersed systems and particle concentrations of monodispersed aerosols

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United States of America Patent

PATENT NO 5214386
SERIAL NO

07589668

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus useful in measuring the size, charge, velocity and concentration of particles in polydispersed systems, and particle concentrations of monodispersed aerosols. A particle flow to be evaluated is conducted through at least one active electric field sensor, which may be constructed in an annular, point, or segmented annular configuration. The charge induced by each particle on the sensor is fed to an active charge amplifier. The output signal of the amplifier serves as input signal for a measured value indicator. The amplifier is a component for a measured value evaluation circuit, which consists of at least one capacitor, one resistor and the amplifier and, which is preferably integrated into the arrangement of the sensor. A computer or microprocessor is used in analyzing the sensor output to determine desired parameters descriptive of the particles and their movement. The particle flow may be charged prior to measurement and the particles may also be separated according to charge.

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Patent Owner(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rossner, Michael Haldesdorfer Strasse 158, 2000 Hamburg 71, DE 1 31
Singer, Hermann Luettendamm 9, 2000 Stapelfeld/Hamburg, DE 1 31

Cited Art Landscape

Patent Info (Count) # Cites Year
 
THE UNIVERSITY OF WESTERN ONTARIO (1)
* 4973909 System for the measurement of the concentration particulates in a flowing gas 2 1990
 
MATTER + SIEGMANN AG (1)
* 4837440 Method and apparatus for characterization of aerosols 44 1986
 
KANZAKI PAPER MANUFACTURING CO., LTD. (1)
* 4685569 Method of detecting and sorting pieces of insulating materials admixed in small pieces of conductive materials 18 1984
 
VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT NERUDNYKH STROITELNYKH MATERIALOV GIFDROMEKHANIZATSII (1)
* 4556849 Apparatus for measuring the grain-size composition of powders 10 1983
 
Sentech Corporation (1)
* 4910463 Halogen monitoring apparatus 19 1987
* Cited By Examiner

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NICHOLSON, MARVIN, MR. (1)
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FOSTER WHEELER NORTH AMERICA CORP. (2)
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* 2003/0163,290 Measuring system and a method for measuring particle velocity and/or particle velocity distribution and/or particle size distribution 0 2002
 
Kim, Kwang-Youn (1)
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TSI, INCORPORATED (2)
* 7031133 Aerosol charge altering device 15 2004
* 2005/0083,633 Aerosol charge altering device 8 2004
 
JOFRACH L.L.C. (1)
* 5945831 Volume charge density measuring system 38 1997
 
TESTO AG (1)
* 2006/0150,754 Method and device for the measurement of the number concentration and of the average diameter of aerosol particles 7 2006
 
UNIVERSITE D'ORLEANS (2)
* 8689652 Method for determining the surface radius and/or particle density of a powder 0 2010
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Matter Engineering (1)
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MICRODOSE THERAPEUTX, INC. (12)
* 5699649 Metering and packaging device for dry powders 37 1996
* 5960609 Metering and packaging method and device for pharmaceuticals and drugs 30 1998
6923979 Method for depositing particles onto a substrate using an alternating electric field 27 1999
6428809 Metering and packaging of controlled release medication 16 1999
6702683 Metering and packaging of controlled release medication 9 2002
7404968 Metering and packaging of controlled release medication 75 2004
* 2007/0087,048 Oral dosage combination pharmaceutical packaging 24 2006
7632533 Method and apparatus for producing uniform small portions of fine powders and articles thereof 6 2007
8439033 Inhalation device 3 2008
8991390 Inhalation device and method 0 2011
9132246 Inhalation device 0 2013
9539400 Inhalation device 0 2015
 
PCME LIMITED (1)
* 6192740 Method and apparatus for detecting particles in a flow 14 1995
 
SMITHS DETECTION-WATFORD LIMITED (3)
* 7298127 Particle detection 1 2004
* 2006/0164,094 Particle detection 4 2004
* 2010/0283,450 Particle detection 0 2007
* Cited By Examiner