Patent ID: 9028212
Filing Date: 2015-05-12
Classification: F04D

Abstract:
1. An exhaust fan, comprising: a housing having closed side walls, a top and a bottom with an opening; a blower inside of the housing; a motor for running the blower; a grill cover having vents for allowing air to be pulled into the housing by the blower wheel; and a lens cover in the grill cover for covering a light source that is mounted in a light box, wherein the motor powered blower pulls air through the vents of the grill around the light box and not into the light box, to be exhausted from the housing; external flaps adaptable for mounting the housing to structural supports within a ceiling, wherein the flaps each include a single base plate having a generally uniform thickness with a flat front face and a flat rear face, the flat rear face fastened to an exterior of the housing, and a single swinging flat flap plate with a flat front face and a flat rear face, the single swinging flat flap plate having two substantially parallel sides, one of said two substantially parallel sides having a longer length than two non-parallel sides, said one of the two substantially parallel sides attached by a hinge to one side of the single base plate, the single swinging flat flap plate having both a fastening opening and a keyhole slot for mounting the housing to a joist, wherein the single swinging flat flap plate is bendable from a coplanar position with the single base plate to pivot about the hinge past a 90 degree angle relative to the single base plate.