Fume hood incorporating high efficiency auxiliary air plenum

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Details

55418, 55DIG29, 98 36, F23J 1100

Patent

active

044360223

ABSTRACT:
An auxiliary air fume hood provided with an improved airflow system for controlling the passage of air through an auxiliary air housing and orienting the flow of air in front of the face of the hood. The hood is designed to capture the auxiliary air through the face of the hood when the temperature of said air is as much as 20.degree. F. higher than the room air temperature.

REFERENCES:
patent: 2108283 (1938-02-01), Drew et al.
patent: 2251663 (1941-08-01), Darbo
patent: 3111077 (1963-11-01), Cortright
patent: 3752056 (1973-08-01), Chamberlin et al.
patent: 4009647 (1977-03-01), Howorth
patent: 4100847 (1978-07-01), Norton

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