Abstract: A ceiling vent air diverter is taught, in the preferred embodiment, which incorporates a diverter body configured to cover beneath an existing air vent supplying air to a room of a building. The diverter body has a rectangular flat bottom and upstanding sides with each upstanding side having a discharge air slot permitting air to be distributed in opposed directions from the diverter at a ceiling level. A peripheral flange extends outwardly from each side of the body, in parallel relationship with the bottom and is used for attachment to the building ceiling. A second embodiment is configured and functions in the same manner as above but covers over the top of an existing air vent and includes a lip on the underside of the flange. The third embodiment is for a ceiling air duct diverter system consisting of a box like housing with side walls, an open top and open sides to divert air flow and having the capability of affixing the open top near a ceiling air vent.

Abstract: An air diffuser for distributing air into a room from a supply duct of an air distribution system having: a frame member, wherein the frame member includes an inner surface, and an outer surface; an attachment member, wherein the attachment member is associated with the frame member, and further wherein the attachment member is configured for associating the air diffuser with a supply duct; and a diffusing member, wherein the diffusing member comprises a substantially hemispherical dome having an inner surface, an outer surface, and a plurality of apertures, and wherein the substantially hemispherical dome emanates away from the outer surface of the frame member.

Abstract: An air deflector adapted for insertion at an air vent positioned and supported by supporting shoulders of main runners and cross tees of a suspended ceiling including at least one support surface adapted for engagement with and supported by a supporting shoulder and a deflector surface in engagement with and supported by the at least one support surface and adapted to direct the flow of air from the air vent.