Gas burner apparatus

Claim 1

A GAS BURNER APPARATUS COMPRISING: AN OUTER SHELL HAVING A FRONT END AND A REAR END, SAID OUTER SHELL BEING FRUSTO-CONICAL CONVERGING TOWARD SAID REAR END, AN INNER METAL LINER HAVING A FRONT END AND A REAR END, SAID INNER LINER BEING OF A SMALLER DIAMETER THAN SAID SHELL AND INCLUDING A FRUSTO-CONICAL SECTION CONVERGING TOWARD SAID LINER REAR END AND INCLUDING A FRUSTO-CONICAL SECTION CONVERGING TOWARD SAID LINER FRONT END, SAID INNER LINER AND SAID OUTER SHELL BEING COAXIAL, AND SPACED TO FORM AN AIR PASSAGE BETWEEN SAID SHELL AND SAID LINER, END WALLS AT THE FRONT AND REAR ENDS OF THE OUTER SHELL CLOSING SAID SHELL, A TANGENTIAL AIR INLET IN THE OUTER SHELL AND SPACED FROM THE REAR END THEREOF FOR ADMITTING AIR FOR COOLING SAID INNER LINER, SAID LINER REAR BEING SPACED A DISTANCE OF AT LEAST ONEHALF THE DIAMETER OF THE REAR OF THE LINER FROM THE REAR END OF THE OUTER SHELL WHEREBY A PORTION OF THE AIR FROM THE SPACE BETWEEN THE OUTER SHELL AND THE LINER WILL FLOW ABOUT THE INSIDE WELL OF THE LINER IN A HELICAL PATH TO COOL THE INSIDE OF THE LINER, AND MEANS ADJACENT THE REAR OF THE SHELL FOR INJECTING FUEL INTO SAID INNER LINER WHEREBY FUEL AND AIR IS MIXED AND BURNER IN THE INTERIOR OF THE LINER.