System for collecting particulates from a fluid medium

Details System for collecting particulates from a fluid medium System for collecting particulates from a fluid medium

G - Physics

01

N

73/102, 183/109

G01N 1/22 (2006.01)

Patent

CA 1041319

ABSTRACT OF THE DISCLOSURE A system for sampling particulates suspended in a fluid medium employing the principles of inertial impaction wherein a collector is moved through the fluid medium under conditions which cause impaction of the particulates on the collector and resultant capture of the particulates on the collector including means adapted to move the particulate-containing fluid medium as an elongated flow column. planar collector means disposed in the flow column and comprising a first plurality of elongated aligned filaments extending in a first direction in a plane, a further plurality of elongated aligned filaments extending in second direction crossing the first direction and in the same plane as the first plurality of filaments, and defining a plurality of open passageways therebetween that communicate between opposite surfaces of the common plane, means releasably mounting the collector for revolution about an axis generally aligned with the length dimension of the flow column and with the common plane of the crossed filaments oriented substantially parallel to the length dimension of the flow column, and means adapted to receive the collector about such axis, the rate of revolution of the collector relative to the rate of flow of the fluid medium being such that the move- ment of the collector defines a helical path through the fluid medium and the collector collides with and collects particulates from the fluid medium.

223887

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