Burner assembly producing radiant heat

Claim 1

IN A BURNER ASSEMBLY FOR PRODUCING RADIANT HEAT, A REFRACTORY WALL, A CERAMIC TILE MEMBER MOUNTED IN SAID WALL WITH THE INNER FACE THEREOF FLUSH WITH THE INNER FACE OF SAID WALL, SAID TILE MEMBER HAVING AN OPENING THROUGH THE CENTRAL PORTION THEREOF, A FLARED ANNULAR SURFACE DEFINING THE EXIT END OF SAID OPENING, SAID FLARED ANNULAR SURFACE BEING OF CONVEX SHAPE IN SECTION AND MERGING SMOOTHLY WITH THE INNER FACE OF SIDE WALL, A HOUSING MEMBER WITHIN SAID OPENING, AN ANNULAR ELEMENT WITHIN SAID HOUSING MEMBER HAVING A THROAT OF SMALLER CROSS SECTION THAN OTHER PORTIONS OF SAID ANNULAR ELEMENT, A BURNER HEAD UNIT MOUNTED WITHIN SAID THROAT, MEANS FOR SUPPLYING FUEL INTO SAID BURNER HEAD UNIT FOR DISCHARGE IN A FLARING PATTERN INTO THE DOWNSTREAM END PORTION OF SAID ANNULAR ELEMENT, MEANS GUIDING AIR OVER THE EXTERIOR OF SAID BURNER HEAD UNIT AND THROUGH SAID THROAT INTO THE PRESENCE OF THE FUEL DISCHARGED FROM THE BURNER HEAD UNIT TO SUPPORT COMBUSTION OF THE FUEL, SAID ANNULAR ELEMENT HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED APERTURES THERETHROUGH DOWNSTREAM OF SAID BURNER HEAD UNIT ARRANGED GENERALLY TANGENTIALLY OF THE ANNULAR ELEMENT WITH THE AXES OF ALL OF SAID APERTURES SLOPING IN THE SAME DIRECTION IN PROCEEDING CIRCUMFERENTIALLY OF SAID ANNULAR ELEMENT, MEANS GUIDING AIR AT PRESSURES ABOVE ATMOSPHERIC THROUGH SAID APERTURES, SAID APERTURES PRODUCING PRESSURE DROP IN THE AIR PASSING THERETHROUGH AND DIRECTING THE AIR IN A CIRCUMFERENTIAL SWIRL AS A CONSEQUENCE OF THE TANGENTIALLY DISPOSITION OF THE APERTURES WHEREBY THE BURNING FUEL IS DRAWN INTO THE SWIRLING AIR SO THAT THE BURNING FUEL MOVES ALONG SAID FLARED SURFACE WITHOUT DEVELOPMENT OF FLAMES OF ANY SUBSTANTIAL EXTENT AWAY FROM SAID FLARED SURFACE.