Clear air device

Details Clear air device Clear air device

1977-12-19

1979-11-27

Lutter, Frank W.

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55385A, 55417, 55419, 55467, 55482, 98 33R, B01D 5100

Patent

active

041759346

ABSTRACT:
A clear air device to maintain the cleanliness of air in "clear rooms" and to ventilate said rooms has a casing with an air inlet grid and an air outlet grid, a preliminary filter, a ventilator and a high efficiency particulate air filter unit (HEPA). The preliminary filter, the ventilator and the high efficiency filter are arranged within the casing in such an order that the air drawn in through the inlet grid first passes said preliminary filter, then the ventilator and thereafter the HEPA. The wall of the casing is provided with one opening between the air inlet grid and the preliminary filter and one opening between the HEPA and the air outlet grid.

REFERENCES:
patent: 1916907 (1933-07-01), Sargent
patent: 2076382 (1937-04-01), Minton
patent: 2110024 (1938-03-01), Miller
patent: 2338382 (1944-01-01), Marlow
patent: 2628083 (1953-02-01), Rense
patent: 2712927 (1955-07-01), Blum
patent: 2892324 (1959-06-01), Quick
patent: 2983213 (1961-05-01), Bohanon
patent: 3838556 (1974-10-01), Finger
patent: 3883637 (1975-05-01), Benedict
patent: 3936284 (1976-02-01), Mason

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