Furnace and burner unit

Claim 1

IN A BURNER UNIT, A BODY WITH AN ELONGATED BURNER PASSAGE DEFINED THEREIN AND A JET JOINING IN SAID BODY CONNECTING WITH SAID BURNER PASSAGE ACCOMMODATING THE FLOW FOR IGNITION PURPOSE OF A FUEL MIXTURE FROM SAID BURNER PASSAGE, A FUEL MIXING CAVITY DEFINED IN SAID BODY WHERE FUEL IS MIXED WITH AIR, SAID CAVITY BEING SPACED FROM ONE END OF SAID BURNER PASSAGE, A FUEL TRANSFER PASSAGE DEFINED WITHIN SAID BODY EXTENDING FROM SAID FUEL MIXING CAVITY TO SAID ONE END OF SAID BURNER PASSAGE, A BLEED PASSAGE DEFINED A SAID BODY EXTENDING LATERALLY OF SAID FUEL TRANSFER PASSAGE, COMMUNICATING AT ONE END WITH SAID FUEL TRANSFER PASSAGE, AN APERTURE IN SAID BODY CONNECTING SAID BLEED PASSAGE WITH THE ATMOSPHERE AND ACCOMMODATING THE FLOW OF A FUEL MIXTURE FROM SAID BLEED PASSAGE TO THE ATMOSPHERE, AND A SUBSTANTIALLY CYLINDRICALLY SHAPED HOLLOW BAFFLE ELEMENT MOUNTED WITHIN SAID FUEL TRANSFER PASSAGE, WITH THE AXIS THEREOF SUBSTANTIALLY PARALLEL THE LONGITUDINAL AXIS OF SAID BURNER PASSAGE AND WITH THE INSIDE THEREOF FORMING A PATH BETWEEN SAID FUEL MIXING CAVITY AND SAID BURNER PASSAGE, SAID BAFFLE ELEMENT BEING MOUNTED IN SAID FUEL TRANSFER PASSAGE ADJACENT WHERE THE BLEED PASSAGE CONNECTS WITH THE TRANSFER PASSAGE AND INCLUDING MEANS ON THE OUTSIDE THEREOF BLOCKING THE FLOW OF THE FUEL MIXTURE WHEREBY SUCH IS DIRECTED ON FLOWING OVER THE OUTSIDE OF THE BAFFLE ELEMENT INTO SAID BLEED PASSAGE.