Lighting and air conducting apparatus

Claim 1

A FIXTURE FOR LIGHTING AND VENTILATING A ROOM SPACE THROUGH A WALL HAVING AN OPENING FROM THE ROOM TO AN EXTERIOR AREA, SAID FIXTURE COMPRISING: A BODY SHELL HAVING A TOP WALL, OPPOSITE SIDE WALLS AND END WALLS CONNECTED TOGETHER TO FORM A CAVITY WITH AN OPEN LIGHT EMITTING SIDE, AT LEAST SAID SIDE WALLS HAVING FLANGES EXTENDING LATERALLY OUTWARDLY SUBSTANTIALLY IN THE PLANE OF THE OPEN SIDE TO LOCATE SAID BODY SHELL RELATIVE TO THE WALL OPENING WITH THE OPEN SIDE FACING THE ROOM SPACE AND SAID TOP, SIDE AND END WALLS BEING SUBSTANTIALLY LOCATED IN THE EXTERIOR AREA; ILLUMINATING LAMP MEANS IN SAID CAVITY; AN AIR INLET AND LIGHT TRAP BOX ON SAID FIXTURE ADJACENT SAID ONE END WALL OF SAID BODY SHELL, SAID BOX COMPRISING A WALL PORTION ON SAID ONE END WALL EXTENDING TRANSVERSELY OF SAID BODY SHELL AT THE WALL OPENING FROM THE ROOM, AN INNER WALL PROJECTING INWARDLY FROM SAID WALL PORTION AND EXTENDING TRANSVERSELY OF SAID BODY SHELL, SAID INNER WALL HAVING AN AIR FLOW APERTURE THEREIN AND AN EXTENSION ADJACENT SAID AIR FLOW APERTURE PROVIDING AN OBSTRUCTION TO THE PASSAGE OF LIGHT FROM SAID CAVITY TO THE ROOM, THE AIR FLOW APERTURE IN SAID INNER WALL BEING SPACED FROM SAID WALL PORTION TO FORM A PASSAGE FOR ROOM AIR FLOW INTO SAID CAVITY ADJACENT SAID INNER WALL EXTENSION; TRANSPARENT PANEL MEANS FOR THE OPEN LIGHT EMITTING SIDE OF SAID BODY SHELL, SAID PANEL MEANS HAVING OPPOSED SIDE MARGINS SPACED INWARDLY FROM SAID SIDE WALL FLANGES TO PROVIDE SIDE SPACES THEREBETWEEN AND ONE END MARGIN OF SAID PANEL MEANS BEING SPACED INWARDLY FROM SAID ONE END WALL PORTION OF THE BODY SHELL AND ABUTTING SAID INNER WALL TO CLOSE OFF AIR FLOW TO THE CAVITY AROUND SAID ONE END MARGIN; AND A VENTILATING AIR SUPPLY DUCT IN THE EXTERIOR AREA OVER SAID BODY SHELL IN SPACED RELATION WITH SAID SIDE WALLS OF THE BODY SHELL, SAID DUCT BEING FORMED OF UPPER AND LOWER WALLS AND SIDE CLOSURE WALLS EXTENDING DOWNWARDLY AT EACH SIDE WALL OF SAID BODY SHELL AND TERMINATING IN ABUTMENT ON SAID BODY SHELL OVER SAID LATERALLY OUTWARDLY EXTENDING FLANGES, SAID LAST MENTIONED FLANGES HAVING APERTURES THEREIN ENCLOSED BY SAID DUCT WALLS AND OPEN TO THE ROOM AT SAID SIDE SPACES, AND SAID DUCT HAVING AN AIR SUPPLY INLET; AND SAID BODY SHELL HAVING AN AIR OUTLET TO THE EXTERIOR AREA TO EXHAUST LAMP HEATED ROOM AIR ENTERING AT SAID AIR INLET BOX.