Air conditioning and lighting system

Claim 1

IN AN ILLUMINATION, SOUND ABSORBING, AND AIR-CONDITIONING DEVICE ADAPTED TO BE MOUNTED IN THE CEILING OF A ROOM, THE COMBINATION COMPRISING: (A) AN ELONGATED LUMINAIRE HOUSING ADAPTED TO CONTAIN ELONGATED DISCHARGE TYPE LIGHT SOURCES, SAID HOUSING COMPRISING SIDE WALLS, END WALLS, A TOP PORTION, AND AN AT LEAST PARTIALLY LIGHT TRANSMITTING BOTTOM PORTION; (B) AN ELONGATED AIR SUPPLY DUCT FOR BRINGING FRESH AIR TO SAID ROOM AND COOLING AIR TO SAID HOUSING, SAID AIR SUPPLY DUCT POSITIONED ADJACENT TO ONE SIDE OF SAID HOUSING AND HAVING SAID SIDE CONCURRENT THEREWITH; (C) AN AIR RETURN DUCT FOR TAKING AWAY STALE AIR FROM SAID ROOM AND WARMED AIR FROM SAID HOUSING, SAID AIR RETURN DUCT POSITIONED ADJACENT TO THE OPPOSITE SIDE OF SAID HOUSING AND HAVING SAID OPPOSITE SIDE CONCURRENT THEREWITH; (D) A SUPPLY AIR DISTRIBUTION CHAMBER LOCATED ABOVE SAID HOUSING AND OPENING INTO SAID AIR SUPPLY DUCT THROUGH AN ADJUSTABLE TRANSVERSE SLOT IN THE SIDE WALL THEREOF, SAID HOUSING HAVING AT LEAST ONE ROW OF AIR JETS OPENING FROM SAID DISTRIBUTION CHAMBER AND SPACED LONGITUDINALLY THEREACROSS ALLOWING COOLING AIR FROM SAID AIR SUPPLY DUCT TO IMPINGE ON SAID LIGHT TRANSMITTING BOTTOM PORTION AND CIRCULATE WITHIN SAID HOUSING AT A RATE OF PREDETERMINED FLOW; (E) A RETURN AIR COLLECTION CHAMBER LOCATED AT EACH END OF SAID HOUSING AND OPENING INTO SAID AIR RETURN DUCT AND SAID HOUSING ALLOWING THE AIR CIRCULATING WITHIN SAID HOUSING WHICH HAS BEEN WARMED BY SAID LIGHT SOURCES TO FLOW THEREFROM INTO SAID AIR RETURN DUCT; (F) A ROOM ENTRANCE END CHAMBER LOCATED AT ONE END OF SAID HOUSING AND OPENING INTO SAID AIR SUPPLY DUCT AND INTO SAID ROOM ALLOWING FRESH AIR TO ENTER THEREIN; (G) A ROOM EXHAUST END CHAMBER LOCATED AT THE OPPOSITE END OF SAID HOUSING AND OPENING INTO SAID ROOM AND INTO SAID AIR RETURN DUCT ALLOWING STALE AIR TO EXIT FROM SAID ROOM; AND (H) THE BOTTOM PORTIONS OF SAID AIR SUPPLY DUCT, SAID AIR RETURN DUCT, SAID COLLECTION CHAMBERS, AND SAID END CHAMBERS COMPRISING MATERIAL OF PREDETERMINED CHARACTERISTICS SUITABLE TO FORM A PART OF THE CEILING OF THE ROOM TO BE ILLUMINATED AND AIR CONDITIONED.