Laboratory fume hood

Details Laboratory fume hood Laboratory fume hood

1983-09-26

1985-08-13

Joyce, Harold

F23J 1100

Patent

active

045342814

ABSTRACT:
An improved laboratory fume hood is the subject of the present invention. A cabinet structure presents an enclosed work area defined by sidewalls, a back wall, and an access opening. Each of the sidewalls presents first and second planar surfaces disposed in spaced parallel planes and interconnected by a third surface disposed at an acute angle relative to the plane of one of the first two surfaces. This third surface provides a mounting area for hose connectors which increases the effective work area and reduces the danger of clothing catching on the hose connectors. A vertically mounted sash covers the access opening and is movable between a lowered closed position and a raised open position. A fixture mounted in front of the sash provides means for mounting a light source. A removable cover on the side of the sash opposite the work area cooperates with the sash to define an air duct for directing add air into the access opening. In this regard, air foils are presented for directing the air into the opening at an angle of approximately 90.degree. relative to the plane of the opening. These same openings are utilized to draw in outside air which passes over the top of the sash when the latter is partially closed.

REFERENCES:
patent: 3111077 (1963-11-01), Cortright
patent: 3237548 (1966-03-01), Bayern
patent: 3408914 (1968-11-01), Bayern
patent: 3410195 (1968-11-01), King
patent: 3745908 (1973-07-01), Mayberry
patent: 3956977 (1976-05-01), Turko et al.
patent: 4100847 (1978-07-01), Norton
"Kewaunee Laboratory Fume Hoods", Kewaunee Manufacturing Company, Adrian, Michigan, Section 2, 1965, pp. 61, 62 and 70.
"LABCONCO Laboratory Equipment and Apparatus", Labconco Corporation, Kansas City, Missouri, 1966, pp. 11, 17, 19 and 23.

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