Pulse jet burner

Claim 1

IN A PULSE JET BURNER, IN COMBINATION, A SHELL BEFINING A CLOSED SOUNDPROOFING SPACE; PORT MEANS IN SAID SHELL FORMING AN INLET FORM AN OXYGEN-CONTAINING GASEOUS MEDIUM INTO SAID SOUNDPROOFING SPACE; A COMBUSTION CHAMBER ARRANGE ENTIRELY WITHIN SAID SOUNDPROOFING SPACE SO THAT COMBUSTION GASES POSSIBLY ESCAPING FROM SAID COMBUSTION CHAMBER THROUGH A LEAK THEREIN WILL ENTER SAID SOUNDPROOFING SPACE; A SUCTION DUCT CONNECTED AT ONE END OF SAID COMBUSTION CHAMBER, SAID SECTION DUCT PASSING THROUGH SAID SOUNDPROOFING SPACE AND THROUGH SAID SHELL SO THAT IT INLET END WHICH IS ADAPTED TO RECEIVE FUEL IS LOCATED OUTSIDE OF SAID SHELL, SAID SUCTION DUCT HAVING INTAKE OPENING MEANS LOCATED WITHIN SAID SOUNDPROOFING SPACE IN SAID SHELL TO RECEIVE NOT ONLY OXYGENCONTAINING GASEOUS MEDIUM ENTERING SAID SOUNDPROOFING SPACE THROUGH SAID PORT MEANS, BUT ALSO TO RECOVERY INTO SAID COMBUSTION CHAMBER ANY COMBUSTIBLE GASES WHICH MIGHT HAVE ESCAPE FROM SAID COMBUSTION CHAMBER INTO SAID SOUNDPROOFING SPACE; AND A RESONANCE DUCT CONNECTED TO SAID COMBUSTION CHAMBER AND PASSING THROUGH SAID SHELL SO AS TO CONVEYOR SPENT GASES FROM SAID COMBUSTION CHAMBER TO THE OUTSIDE OF SAID SHELL.