Personal air sampling impactor

Details Personal air sampling impactor Personal air sampling impactor

1987-06-25

1989-01-10

Richman, Barry S.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

73 28, 73 8, 55270, 422101, G01N 700, G01N 3100, G01N 1502, G01N 100

Patent

active

047964758

ABSTRACT:
A compact air sampling impactor assembly has an inlet nozzle overlying an impaction plate that is mounted on a flat housing that defines an interior chamber covered by a filter. An air flow outlet tube leading from the chamber is connected to an air pump and a flow is established through the nozzle so the air impinges on the impaction plate to leave particles thereon and the flow then passes through the filter to the chamber and then out the air outlet. The size is kept small for personal use. Cascade impactors can be made using additional flow paths defining covers in association with the basic impactor plate and filter-carrying housing.

REFERENCES:
patent: 3693457 (1972-09-01), Pilat
patent: 3949594 (1976-04-01), Treaftis et al.
patent: 3957469 (1976-05-01), Nebash
patent: 3966439 (1976-06-01), Vennos
patent: 4321822 (1982-03-01), Marple et al.

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