Area lighting and air exchange apparatus

Claim 1

AREA LIGHTING AND VENTILATING APPARATUS COMPRISING A BODY HAVING WALLS ENCLOSING THE SIDES, TOP AND ENDS, SAID BODY BEING OPEN OPPOSITE SAID TOP AND BETWEEN SAID SIDES AND ENDS, ILLUMINATING LAMP MEANS MOUNTED IN SAID BODY INWARDLY OF SAID OPENING, LIGHT TRANSMITTING PANEL MEANS MOUNTED ON SAID BODY OVER SAID OPENING AND COOPERATING WITH SAID SIDES, TOP AND ENDS TO FORM A SPACE ENCLOSING SAID LAMP MEANS, VENTILATING AIR BOX MEANS CARRIED BY SAID BODY BETWEEN SAID ENDS AND HAVING PORTIONS EXTENDING OVER SAID TOP WALL AND DOWNWARDLY ADJACENT SAID SIDE WALLS, SAID SIDE WALLS HAVING MARGINAL FLANGES ADJACENT SAID PANEL MEANS FORMED WITH APERTURES OPENING THERETHROUGH OUTSIDE OF SAID LAMP ENCLOSING BODY SPACE, SAID DOWNWARD EXTENDING PORTIONS OF THE AIR BOX MEANS ENGAGING SAID MARGINAL FLANGES OVER SAID APERTURES, INSULATING MEANS IN SAID AIR BOX MEANS OVER THE ADJACENT SURFACES OF SAID BODY TOP AND SIDE WALLS TO REDUCE HEAT EXCHANGE BETWEEN VENTILATING AIR FLOW IN SAID AIR BOX MEANS AND THE INTERIOR OF SAID BODY, AIR INLET MEANS ON SAID AIR BOX MEANS TO ADMIT VENTILATING AIR THERETO FOR FLOW TO AND THROUGH SAID FLANGE APERTURES FOR THE AREA TO BE LIGHTED AND VENTILATED, WALL MEANS IN SAID BODY SPACED FROM ONE OF SAID BODY END WALLS AND COOPERATING WITH THE LATTER TO FORM AN OPENING COMMUNICATING BETWEEN THE ENCLOSING LAMP SPACE AND THE AREA TO BE LIGHTED AND VENTILATED, AND SAID BODY HAVING AIR OUTLET MEANS SPACED FROM SAID FIRST MENTIONED OPENING PROVIDING AN OPENING BETWEEN THE ENCLOSING LAMP SPACE AND THE EXTERIOR OF SAID BODY REMOTE FROM THE AREA TO BE LIGHTED AND VENTILATED, WHEREBY AIR MOVEMENT IS A FLOW BETWEEN SAID FIRST MENTIONED OPENING TO THE AREA TO BE VENTILATED AND SAID AIR OUTLET MEANS TO EXHAUST THE HEAT GENERATED BY SAID LAMP MEANS OUT OF THE ENCLOSED LAMP SPACE WITH AIR FLOW FROM THE AREA.