Combination lighting and ventilating fixture

Claim 1

IN A LIGHTING AND VENTILATING SYSTEM, A PLURALITY OF FIXTURES HAVING LAMPS MOUNTED THEREIN AND OVERLYING A SPACE TO BE AIR CONDITIONED, SAID FIXTURES RESPECTIVELY COMPRISING A HOUSING AND WATER JACKETED LIGHT REFLECTING SHELL MEANS THEREIN IN SPACED RELATION THERETO, AND PARTITION MEMBERS EXTENDING BETWEEN SAID HOUSING AND SHELL MEANS PROVIDING THEREWITH A RETURN AIR CHAMBER OVERLYING SAID SHELL MEANS, A DOWNWARDLY OPENING RETURN AIR PASSAGE LEADING FROM SAID RETURN AIR CHAMBER AND A DOWNWARDLY OPENING AIR SUPPLY CHAMBER CLOSED TO SAID RETURN AIR CHAMBER; A TRUNK CONDUIT HAVING AN ATMOSPHERIC AIR INTAKE OPENING, A BLOWER HAVING ITS INTAKE CONNECTED TO SAID CONDUIT, THE LATTER HAVING THEREIN A PREHEATER AND A COOLING COIL AND A REHEATER DISPOSED IN THE ORDER STATED BETWEEN SAID OPENING AND SAID BLOWER, MEANS FOR DELIVERING AIR FROM SAID BLOWER TO SAID AIR SUPPLY CHAMBERS OF SAID FIXTURES, MEANS FOR DRAWING AIR THROUGH SAID AIR RETURN PASSAGES AND CHAMBERS OF SAID FIXTURES AND DELIVERING IT TO SAID TRUNK CONDUIT AND TO ATMOSPHERE OPTIONALLY, AND MEANS FOR OPTIONALLY CIRCULATING WATER THROUGH SAID SHELL MEANS AND REHEATER AND SHUNTING THE WATER FROM SAID SHELL MEANS AROUND SAID REHEATER.