Air grill including a wooden frame

Claim 1

IN COMBINATION, A BODY MEANS HAVING A SUPPLY OPENING FROM WHICH A STREAM OF COOLED AIR IS DISCHARGED INTO A SURROUNDING ROOM THEREBY CREATING AT THE POINT OF AIR DISCHARGE, IMMEDIATELY ADJACENT THE SUPPLY OPENING, A LOW PRESSURE AREA INTO WHICH THE RELATIVELY WARM ROOM AIR IS DRAWN LATERALLY FROM ALL SIDES, MEANS FOR COOLING THE AIR WITHIN THE BODY MEANS, BLOWER MEANS FOR DISCHARGING THE AIR WITHIN THE BODY MEANS THROUGH SAID SUPPLY OPENING, A GRILL COMPRISING A FRAME DEFINING AN OPENING WHEREIN IS A SET OF THIN SPACED VANES ARRANGED CROSSWISE OF THE FRAME AND SUPPORTED THEREBY, THE FRAME INCLUDING A PLURALITY OF INTERCONNECTED STRIPS EACH INCLUDING A WALL AND AN OUT-TURNED FLANGE WHOSE INNER SURFACE DEFINES A FACING ADAPTED TO OVERLIE THE ADJACENT SURFACE OF THE BODY MEANS AND BEING SPACED THEREFROM TO DEFINE A NARROW INSULATING AIR SPACE EXTENDING AROUND THE FRAME BETWEEN THE FACING AND THE ADJACENT PORTIONS OF THE BODY, MEANS SAID FRAME WALLS BEING SPACED FROM THE ADJACENT PORTIONS OF THE SUPPLY OPENING TO PROVIDE COMMUNICATION BETWEEN THE AIR SPACE AND THE INTERIOR OF THE BODY MEANS FROM WHICH COOLED AIR IS DISCHARGED OUTWARDLY THROUGH SAID OPENING WHEREBY TO SUBSTANTIALLY IMMUNIZE THE REAR SIDE OF THE FACING FROM ANY CHILLING EFFECTS, THE FRAME AND ITS FACING BEING FORMED OF FIBROUS WOOD MATERIAL AND HAVING A LOW THERMAL CONDUCTION VALUE WHEREBY TO REMAIN SUBSTANTIALLY UNAFFECTED TEMPERATUREWISE FROM COOLED AIR DRIVEN THROUGH THE GRILL AND INCAPABLE OF CHILLING THE RELATIVELY WARM ROOM AIR IN CONTACT WITH THE FRAME WHILE ADVANCING INTO THE LOW PRESSURE AREA ADJACENT THE GRILL.