Electric heater

Claim 1

A HEATER APPARATUS COMPRISING A CASING HAVING AN AIR INLET OPENING AND AN AIR OUTLET OPENING, CONDUIT MEANS BETWEEN SAID INLET AND OUTLET OPENINGS COMPRISING A FIRST FRUSTO-CONICAL SECTION CONNECTED TO SAID INLET OPENING SUCH THAT THE WALLS THEREOF FLARE INWARDLY OF THE CASING, A SECOND FRUSTO-CONICAL SECTION HAVING OUTWARDLY FLARING WALLS CONNECTED TO SAID FIRST FRUSTO-CONICAL SECTION REMOTE OF SAID INLET OPENING, THE JUNCTURE OF SAID FIRST AND SECOND SECTIONS DEFINING A VENTURI THROAT, A CYLINDRICAL CONDUIT CONNECTED TO THE AIR OUTLET OPENING EXTENDING INWARDLY INTO THE CASING, A CYLINDRICAL SECTION CONNECTED TO THE FORWARD EDGE OF THE OUTWARDLY FLARING WALLS OF SAID SECOND FRUSTO-CONICAL SECTION PROVIDED WITH A CIRCULAR REVERSE BEND TO PRODUCE AN OPENING SIZED TO MATE WITH THE CYLINDRICAL CONDUIT CONNECTED TO SAID OUTLET OPENING, HEAT STORAGE MEANS COMPRISING A BLANKET OF METALLIC WOOL POSITIONED WITHIN SAID CYLINDRICAL CONDUIT AND ACROSS SAID OUTLET OPENING, REFLECTOR MEANS WITH HEATER ELEMENT MOUNTED CENTRALLY WITHIN THE CONDUIT MEANS AND POSITIONED TO DIRECT RADIATION FROM SAID HEATER ELEMENT ONTO SAID HEAT STORAGE MEANS AND MEANS FOR DRAWING AIR INTO THE CASING THROUGH SAID INLET OPENING, FORCING IT AROUND THE REFLECTOR MEANS IN SUBSTANTIALLY OUT-OF-CONTACT RELATION WITH THE HEATER ELEMENT AND IN HEAT EXCHANGE RELATION WITH SAID HEAT STORAGE MEANS AND CAUSING IT TO FLOW OUT OF THE CASING THROUGH SAID AIR OUTLET OPENING.