Patent ID: 7431642
Filing Date: 2008-10-07
Classification: F24F

Abstract:
1. A ventilation system, comprising: an impeller; a unitary molded housing that defines a flow path and one or more mounting structures, wherein the flow path and the mounting structures are integrated into the unitary molded housing, the shape of the flow path surrounds the impeller in a descending spiral, which is defined by: wherein the flow path is defined by at least a first radius, a second radius and a third radius, wherein the first radius is orthogonal to the second radius, and the second radius is orthogonal to the third radius, and the value of each radius is a function of XY an exterior structure coupled to the unitary molded housing, the exterior structure includes at least one inlet port, the at least one inlet port being concealed from view; and at least one recess coupled to the exterior structure that accommodates at least one illumination element.