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7523642 |
Method and device for determining the fractions of lubricants emitted into the atmosphere in coolant processes
A method for determining fractions of coolants emitted into the atmosphere in processes using coolants, in particular in the metal processing industry. Here, samples of the atmosphere polluted with...
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6594001 |
Pollen grain-counting method and pollen grain counter
Provided is a method and apparatus which enable only pollen existing in the atmosphere to be automatically quantified. According to the method and apparatus, particles other than those...
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5983704 |
Method of measuring and analyzing contamination particles generated during the manufacture of semiconductor devices
An apparatus and a method of measuring contamination particles generated during manufacturing of semiconductor devices and an analysis method therefor are described. The apparatus for measuring...
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5425263 |
Method for inspecting an article for concealed substances
There is provided an assembly for preferentially separating and collecting particles that are gathered from the surface of an article such as an item of baggage. The assembly features an impactor...
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4764186 |
Particle impactor assembly for size selective high volume air sampler
Air containing entrained particulate matter is directed through a plurality of parallel, narrow, vertically oriented impactor slots of an inlet element toward an adjacently located, relatively...
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4660408 |
Proportional exhaust sampler system and control means
A testing apparatus for measuring the particulate and/or gaseous content of an exhaust source for use in evaluating the exhaust emissions of internal combustion engine provides both fixed flow and...
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4590792 |
Microanalysis particle sampler
Apparatus of the invention enables gas entrained particulate collection and transfer of collected particulate into position for scanning by a scanning electron microscope; and it comprises: (a)...
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4321822 |
Impactor apparatus
An impactor apparatus operable to collect particles for subsequent gravimetric or chemical analysis. The apparatus has a first assembly for supporting particle impaction means and a second nozzle...
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4133202 |
Multiple nozzle single stage impactor
A single stage impactor having a plurality of different sized nozzles that predicate a particle collection efficiency curve that approximates a predetermined curve. The impactor has a particle...
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3983743 |
Apparatus and method for the analysis of a particle-laden gas
An apparatus for the collection of particles from a gas containing particles which comprises a first means for directing the flow of said gas toward a second means for collection of at least a...
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3938366 |
Aerosol analyzer
An apparatus for separating particles from a fluid comprising a housing, means for flowing a fluid through said housing, a plurality of parallel perforated plates supported in said housing spaced...
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3795135 |
SAMPLER OF AIR-BORNE PARTICLES
An apparatus adapted to extract minute particles from a gas and deposit them on surface means for inspection and analysis and comprises a plurality of stacked perforated discs held firmly in...
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3681973 |
CENTRIFUGAL ROTATING PARTICLE SIZING APPARATUS
A particle sizing apparatus comprising a sampler mounted for rotation in a plane perpendicular to the wind direction having an entrance slot communicating with a hollow aerodynamically shaped...
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3633405 |
ROTARY INERTIAL IMPACTOR FOR SAMPLING ATMOSPHERIC PARTICLES
A multistage inertial impactor is disclosed having a plurality of collection stages and impactor surface characteristics. The impactor comprises a motor-driven rotor arm mounted for rotation about...
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3127763 |
Compact cascade impactor
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2947164 |
Cascade impactor for sampling smokes, dusts, and fumes
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