Fume hood

Supports: cabinet structure – With movable components – Having biasing means

Patent

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Details

3121381, B08B 1502

Patent

active

048564206

ABSTRACT:
Fume hoods with sash controlled airflow paths are provided with inwardly inclined upright transparent sash and outwardly inclined transparent top panels to increase visibility of the hood interior. The tilted or angled transparent upright sash facilitates outside viewing of articles inside the hood since a viewer standing in front of the hood can look down on the articles without reflective glare from outside lighting while at the same time the outwardly inclined transparent panel above the closed sash captures the outside lighting to enhance the interior illumination of the hood and allows clear vision into the upper part of the cabinet.

REFERENCES:
patent: 1054959 (1913-03-01), Anderson
patent: 1431371 (1922-10-01), Chapman
patent: 2715359 (1955-08-01), Mackintosh et al.
patent: 3111077 (1963-11-01), Cortright
patent: 3121618 (1964-02-01), Yerzley
patent: 3604333 (1971-09-01), Nelson
patent: 3726206 (1973-04-01), Worick, Jr.
patent: 3729243 (1973-04-01), Musgrave et al.
patent: 3941040 (1976-03-01), Carlson
patent: 4249463 (1981-02-01), Hornby
patent: 4377969 (1983-03-01), Nelson
patent: 4553992 (1985-11-01), Boissinot et al.
Catalog No. FH-51, entitled "Laboratory Fume Hoods", published by Kewaunee Scientific Equipment Corp., 1975.

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