Filter apparatus

Details Filter apparatus Filter apparatus

1991-03-18

1993-02-09

Chiesa, Richard L.

Gas separation

Means within gas stream for conducting concentrate to collector

55124, 55279, 55524, 422121, B03C 338

Patent

active

051850150

ABSTRACT:
Filter apparatus for removing contaminants from air includes a housing having an inlet opening and an outlet opening, and a fan for maintaining a flow of air through the housing from the inlet opening to the outlet opening. A first filter element removes particles greater than a predetermined size from air entering the housing by way of the inlet opening, and a second filter element removes particles of selected chemical species from air that has passed through the first filter element in the direction from the inlet opening to the outlet opening. The second filter element defines a chamber that is in open communication with the outlet opening, and the chamber constitutes a third filter element in which air is irradiated with ultraviolet light.

REFERENCES:
patent: 3237382 (1966-03-01), Berly
patent: 3576593 (1971-04-01), Cicirello
patent: 3716966 (1973-02-01), De Seversky
patent: 3722182 (1973-03-01), Gilbertson
patent: 3745750 (1973-07-01), Arff
patent: 3988131 (1976-10-01), Kanazawa et al.
patent: 4244712 (1981-01-01), Tongret
patent: 4981501 (1991-01-01), Von Blucher et al.
Hawley, G. G.; The Condensed Chemical Dictionary; Eighth Edition; Reinhold Company, p. 591; 1971.

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