Radiant heater

Claim 1

A RADIANT HEATER COMPRISING A CHANNEL-SHAPED MAIN BODY, RESPECTIVE TRANSVERSE END WALLS SECURED TO THE ENDS OF SAID MAIN BODY, ONE OF SAID END WALLS BEING INTEGRALLY FORMED WITH A PLATE-LIKE FLANGE OFFSET FROM AND EXTENDING OVER THE ADJACENT END PORTION OF THE MAIN BODY, A PAIR OF SUPERIMPOSED SUPPORTING BLOCKS OF REFRACTORY MATERIAL SUBJACENT SAID FLANGE AND SPACED FROM SAID ONE END WALL, SAID BLOCKS HAVING ABUTTING SURFACES LOCATED IN A PLANE SUBSTANTIALLY PARALLEL TO SAID FLANGE, DEPENDING BOLT MEANS EXTENDING THROUGH THE FLANGE AND THE UPPERMOST BLOCK AND SECURED TO THE LOWERMOST BLOCK, WHEREBY TO FASTEN THE BLOCKS BENEATH THE FLANGE, AN ELONGATED ELECTRICAL HEATING ELEMENT OF THE SHEATHED TYPE HAVING ONE END PORTION THEREOF SUPPORTINGLY ENGAGED BETWEEN THE BLOCKS, A BRACKET MEMBER TRANSVERSELY MOUNTED END PORTION OF THE HEATPORTINGLY ENGAGING THE OPPOSITE END PORTION OF THE HEATING ELEMENT, THE INSIDE SURFACE OF SAID MAIN BODY BEING FORMED WITH A PLURALITY OF SPACED LONGITUDINAL RIBS, AND A THIN METAL REFLECTOR SECURED IN SAID MAIN BODY IN CONTACT WITH SAID RIBS, WHEREBY TO DEFINE A PLURALITY OF LONGITUDINALLY EXTENDING VENTILATING AIR PASSAGES BETWEEN THE REFLECTOR AND THE INSIDE SURFACE OF SAID MAIN BODY, SAID END WALLS BEING FORMED WITH APERTURES REGISTERING WITH SAID AIR PASSAGES, WHEREBY FREE LONGITUDINAL FLOW OF AIR IS ALLOWED FROM ONE END OF THE ASSEMBLY TO THE OTHER IN THE SPACED BETWEEN THE REFLECTOR AND THE MAIN BODY.