Title:
APPARATUS FOR SEPARATION AND CONCENTRATION OF PARTICLES FROM A FLUID STREAM
Document Type and Number:
WIPO Patent Application WO1998058725
Kind Code:
A8
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. The device comprises a plurality of projection (12), each having a virtual impact surface that defines an aperture (30) 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.
Inventors:
BIRMINGHAM JOSEPH G
CALL CHARLES J
SU YIN-FONG
LERNER BRUCE D
IRVING PATRICIA M
WEGENG ROBERT S
CALL CHARLES J
SU YIN-FONG
LERNER BRUCE D
IRVING PATRICIA M
WEGENG ROBERT S
Application Number:
PCT/US1998/012471
Publication Date:
April 29, 1999
Filing Date:
June 16, 1998
Export Citation:
Assignee:
CORONA CATALYSIS CORP (US)
BATTELLE MEMORIAL INSTITUTE (US)
BATTELLE MEMORIAL INSTITUTE (US)
International Classes:
B01D45/08; B01D45/16; G01N1/22; G01N1/24; (IPC1-7): B01D45/08; B01D45/16; G01N1/24
Download PDF:
Previous Patent: METHODS AND APPARATUS FOR SLUDGE COLLECTION
Next Patent: POLYACRYLONITRILE-BASE HOLLOW-FIBER FILTRATION MEMBRANE
Next Patent: POLYACRYLONITRILE-BASE HOLLOW-FIBER FILTRATION MEMBRANE