Ambient aerosol sampler inlet

Details Ambient aerosol sampler inlet Ambient aerosol sampler inlet

1982-03-05

1984-07-24

Goldberg, Gerald

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

55270, 55337, 55392, 55449, G01N 102, B01D 4512

Patent

active

044611838

ABSTRACT:
An ambient aerosol sampling device according to the disclosure herein includes a cyclonic fractionator comprised of an inner tube positioned partially inside a larger diameter middle tube that is plugged at the bottom. A still larger sized outer tube is positioned over the middle tube to receive air flow out of the middle tube and direct it to a conventional filter substrate. A plurality of vanes are positioned at the inlet of the inner tube to impart a vertical motion to an air stream flowing therein. A protective cover is positioned over the vanes and cyclonic fractionator, and an aerodynamic deflector at the bottom of the cover and air ramp inside the cover provides an omni-directional inlet pathway to draw air into the sampling device and to guide the airstream into the vanes.

REFERENCES:
patent: 1518152 (1924-12-01), Kingdon
patent: 2626013 (1953-01-01), Reimann
patent: 3521431 (1970-07-01), Connors et al.
patent: 4255172 (1981-03-01), Smith

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