Fume hood with modular blower and filter assembly

Details Fume hood with modular blower and filter assembly Fume hood with modular blower and filter assembly

1984-05-01

1985-10-22

Lacey, David L.

Gas separation

Combined or convertible

Involving ash tray

55472, 55473, 55482, 55502, 55503, 55DIG18, 98 36, 981153, B08B 1502

Patent

active

045486271

ABSTRACT:
A modularized biohazardous fume hood in which a single unit retains a blower, and exhaust transition, and mount for the blower in a single package. The exhaust transition rides atop a non-metallic exhaust HEPA filter and therefore the non-metallic filter serves as a spacer as well as a sound and vibration deadener from the motor of the blower. Similarly, the base of the motor rests atop a second filter through which the recirculating air is driven downwardly over a diffuser and onto a work tray. The entire blower and exhaust transition rests atop the non-metallic HEPA filter, and therefore further sound and vibration deadening and space saving is achieved. Moreover, because the filters for the exhaust as well as the recirculating air are used as structural units, the amount of space can be minimized to the end that a commercial embodiment can be developed which is essentially twenty-four inches wide, twenty-four inches deep, and only fifty-four inches high and still provides a work area height of no less than 28 inches to allow for gravity fill of large I.V. bottles and pouches (shorter units are available 24.times.24.times.46").

REFERENCES:
patent: 3492112 (1970-02-01), Deckas
patent: 3729905 (1973-05-01), Diccianni
patent: 3926597 (1975-12-01), Landy
patent: 4045192 (1977-08-01), Eckstein et al.
patent: 4098174 (1978-07-01), Landy
patent: 4175936 (1979-11-01), Lough et al.
patent: 4249463 (1981-02-01), Hornby
patent: 4312291 (1982-01-01), Knab

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