Radiant cup gas burner

Claim 1

IN A BURNER, THE COMBINATION OF A BLOCK HAVING AN OPENING THERETHROUGH WITH ONE END OF THE OPENING TERMINATING IN ONE FACE OF THE BLOCK, A HOLLOW FUEL DISTRIBUTOR RECEIVED IN SAID OPENING WITH A CLOSED END THEREOF EXTENDING BEYOND SAID FACE, SAID DISTRIBUTOR BEING OF A DIAMETER SMALLER THAN SAID OPENING EXCEPT ADJACENT TO SAID END WHERE IT IS ENLARGED TO BE RECEIVED SNUGLY IN SAID OPENING, SAID ENLARGED PORTION BEING PROVIDED WITH A PLURALITY OF AXIALLY EXTENDING SLOTS SPACED CIRCUMFERENTIALLY AROUND IT, SAID EXTENDING END HAVING AN OUTER SURFACE THAT IS FRUSTROCONICAL IN SHAPE WITH THE DIAMETER DIMINISHING TOWARD SAID END AND PROVIDED WITH A FIRST ROW OF PORTS IN THE CONICAL SURFACE, HAVING AXES POSITIONED PERPENDICULAR TO SAID FACE AND LOCATED CIRCUMFERENTIALLY BETWEEN SAID SLOTS AND A SECOND ROW OF PORTS IN SAID SURFACE HAVING AXES PERPENDICULAR TO SAID SURFACE AND AXIALLY CLOSER TO SAID END AND DISPLACED CIRCUMFERENTIALLY WITH RESPECT TO SAID FIRST ROW OF PORTS WHEREBY THE TWO ROWS OF PORTS WILL NOT BE AXIALLY ALIGNED, MEANS TO SUPPLY A FUEL-AIR MIXTURE TO SAID DISTRIBUTOR TO FLOW THROUGH SAID PORTS, AND MEANS TO SUPPLY AIR TO SAID OPENING TO FLOW THROUGH SAID SLOTS, SAID SECOND ROW OF PORTS BEING CIRCUMFERENTIALLY AND AXIALLY DISPLACED WITH RESPECT TO SAID SLOTS SO THAT THE AIR FLOWING THROUGH SAID SLOTS WILL NOT IMPINGE DIRECTLY UPON AND DISTURB THE FLOW OF MIXTURE THROUGH SAID SECOND ROW OF PORTS AS SAID MIXTURE IS LEAVING SAID SECOND ROW OF PORTS.