Gas separation – Two or more separators
Patent
1997-04-08
1998-08-25
Chiesa, Richard L.
Gas separation
Two or more separators
55485, 55486, 55491, 55496, 55DIG33, 55DIG35, 12820227, 12820617, B01D 3530
Patent
active
057979740
ABSTRACT:
A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial half-mask respirators, are generally smaller and lighter in weight than existing filters, and have low resistance to airflow, so they can be comfortably worn by people performing their normal work duties. Each device consists of at least a front, a middle and a back section which can be independently separated and analyzed by traditional laboratory techniques. The filtering and sampling media thicknesses and types can be adapted to target specific compounds.
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Supelco Catalog, pp. 2, 3, 13 and 22, Undated.
Lab Safety Supply Catalog, pp. 73-93, Undated.
Flaherty Dennis K.
Gordon Russell P.
Taylor Paul M.
Zielinski Frank D.
Beusen Jon H.
Chiesa Richard L.
Monsanto Company
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