Patent ID: 9719519
Date: 2017-08-01
CPC Classifications: F04D,F24F

Claim:
1. A dropped ceiling fan for use in a room, the dropped ceiling fan comprising: an elongated body element having an upper end and a lower end with a top surface at said top end, said elongated body element defining a vertical axis, wherein said top surface defines a non-ducted opening that does not include a mounting structure for coupling HVAC ductwork to said elongated body and wherein said elongated body element is constructed and arranged to be suspended in a dropped ceiling; a fluid impelling device positioned inside said elongated body element, wherein said fluid impelling device is constructed and arranged to move air downwardly in said elongated body toward said lower end; a plate defining a hole proximate to the middle of said plate, wherein said plate is disposed within said elongated body perpendicular to said vertical axis with the hole positioned below said fluid impelling device such that air moved downwardly by said fluid impelling device passes through the hole; a peripheral intake opening surrounding said plate in the lower end of said elongated body element; a first plurality of inclined elements in the peripheral intake opening constructed and arranged to direct air located adjacent to the lower end of said elongated body element into said elongated body element when said fluid impelling device moves air downwardly; and wherein said opening in said top surface is sized relative to said fluid impelling device such that, when said fluid impelling device moves air downwardly, a significant portion of the air that is moved downward by said fluid impelling device passes through said opening in said top surface from above the dropped ceiling and around said elongated body, wherein the fluid impelling device also draws air from the room below the dropped ceiling through said peripheral intake opening.