Fume hood with removable enclosure panels

Claim 2

In a fume hood having a rear wall and a pair of side walls providing a working chamber, a pair of generally vertically extending front corner posts for supporting the front ends of the side walls, a front access panel, a side enclosure panel, and attaching means for removably attaching the front access panel and the side enclosure panel to one of the front corner posts so that the attaching means are hidden from view from outside of the fume hood, said one corner post having a first vertically extending flange extending laterally outwardly therefrom and a second vertically extending flange extending forwardly therefrom, the side enclosure panel having a vertically extending front flange at the front edge extending inwardly parallel to the first flange of said one corner post, the attaching means including clip means removably securing the front flange of the side enclosure panel to the first flange of said corner post, the front access panel having a first vertically extending side flange extending rearwardly therefrom and a second vertically extending flange spaced laterally inwardly from the side flange and extending rearwardly parallel to the side flange and to the second flange of said one corner post, the attaching means including clip means removably securing the second flange of the front access panel to the second flange of said one corner post, the side flange and the second flange of the front access panel being spaced apart a distance sufficient to permit the side flange to extend substantially flush with the side enclosure panel.

Claim 3

The structure of claim 1 including a rear support member extending generally vertically upwardly adjacent the rear wall and the rear edge of the side wall which is secured to said one corner post and having a plurality of forwardly extending studs, the side enclosure panel having a vertically extending rear flange extending laterally inwardly from the rear edge thereof, each stud extending through an opening in the rear flange of the side enclosure panel to support the rear thereof.

Claim 4

The structure of claim 1 in which the front access panel includes a plurality of rearwardly extending brackets spaced laterally inwardly of the second flange of the front access panel, each bracket being secured to said one front corner post by a screw.

Claim 5

The structure of claim 1 in which each of the clip means comprises an S-shaped spring clip secured to one flange of a corner post thereby frictionally securing the corner post to a flange of the enclosure panel associated therewith.

Claim 6

The structure of claim 1 including a second front access panel removably secured to the other of said corner posts, each of the front access panels having an inner vertically extending flange extending rearwardly from the inner edge thereof and stud means extending laterally inwardly from the inner flange, and a front panel swingably supported by the stud means.

Claim 7

The structure of claim 5 in which the front panel includes a side flange extending rearwardly from each side thereof, each of the side flanges of the front panel being provided with a slot adjacent the upper end thereof receiving one of the stud means on the front access panels, a portion of each side flange below the slot being bent laterally inwardly to provide an opening in the side flange and an attaching tab, a bracket on the inner flange of each front access panel extending laterally inwardly through the opening in the adjacent side flange of the front panel, and a screw securing each bracket to the associated attaching tab.

Claim 8

The structure of claim 1 including a rear support member extending generally vertically upwardly adjacent the rear wall and the rear edge of the side wall which is secured to said one corner post and having a plurality of forwardly extending studs, the side enclosure panel having a vertically extending rear flange extending laterally inwardly from the rear edge thereof, each stud extending through an opening in the rear flange of the side enclosure panel to support the rear thereof, a second front access panel removably secured to the other of said corner posts, each of the front access panels having an inner vertically extending flange extending rearwardly from the inner edge thereof and stud means extending laterally inwardly from the inner flange, and a front panel swingably supported by the stud means, an upper side enclosure panel secured to said one front corner post and the rear support member above the side enclosure panel, the upper side enclosure panel having a flat central wall, an L-shaped horizontally extending bottom flange having a first portion extending inwardly from the bottom of the central wall and a second portion extending downwardly from the inner end of the first portion, an L-shaped vertically extending front flange having a first portion extending inwardly from the front of the central wall and a second portion extending forwardly from the inner end of the first portion, the second portion of the bottom flange extending below the top of the side enclosure panel and inwardly thereof and being secured to said one front corner post and the rear support member, the outer surfaces of the upper side enclosure panel and the first side enclosure panel being substantially flush, and an upper front panel above the front panel, the upper front panel having a vertically extending end flange extending rearwardly from one side edge of the upper front panel substantially flush with the outer surface of the upper side panel and a vertically extending inner flange spaced inwardly of the end flange, and clip means releasably attaching the inner flange of the upper front panel and the second portion of the front flange of the upper side panel.

Claim 9

The structure of claim 7 in which the other end of the upper front panel is secured to the other corner post.