Gas separation: processes – Difference in molecular velocity – density – or momentum of... – Passing gases through nozzle
Patent
1997-06-23
2000-01-04
Chiesa, Richard L.
Gas separation: processes
Difference in molecular velocity, density, or momentum of...
Passing gases through nozzle
55444, 55446, 55463, 55464, 95267, B01D 4508
Patent
active
060105542
ABSTRACT:
A micro-machined virtual impactor device to permit the separation, collection and concentration of a significant portion of environmental particulates having a diameter of less than ten microns and its method of operation. The device includes a plurality of projections, each having a virtual impact surface that defines an aperture in a stagnant zone of fluid flow. A major portion of the particulate material is concentrated into a minor portion of the fluid which is processed through the aperture, where it is collected for subsequent analysis.
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Birmingham Joseph G.
Call Charles J.
Irving Patricia M.
Lerner Bruce D.
Su Yin-Fong
Battelle (Memorial Institute)
Chiesa Richard L.
May Stephen R.
MesoSystems Technology, Inc.
Sakoi Jeffrey M.
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