Carburetor

Claim 1

A CARBURETOR COMPRISING A BODY HAVING AN AIR AND FUEL MIXTURE CONDUIT THERETHROUGH, A MAIN FUEL PASSAGE WITHIN SAID CARBURETOR BODY, MEANS FORMING A RESTRICTED JET PORTION OF SAID FUEL PASSAGE, A METERING ROD MOVABLY MOUNTED WITHIN SAID FUEL PASSAGE AND HAVING A FREE END OF VARYING THICKNESS EXTENDING THROUGH SAID RESTRICTED JET PASSAGE PORTION, MEANS ATTACHED TO THE OTHER END OF SAID ROD FOR SUPPORTING SAID ROD AND FOR PROVIDING RECIPROCABLE MOTION OF SAID ROD ALONG ITS LONGITUDINAL AXIS, AND A SPRING BIASING SAID FREE ROD END AGAINST THE WALL OF SAID JET PASSAGE PORTION, SAID SPRING CONSISTING OF A SINGLE STRAND OF WIRE FORMING SINGLE LOOP AND HAVING SPACED OUTWARDLY BIASED ENDS EACH BEING FORMED WITH AN ARCUATE PORTION, A STUD PROJECTING FROM SAID CARBURETOR BODY IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID METERING ROD AND CLOSED SPACED THEREFROM ON THE DOWNSTREAM SIDE OF SAID RESTRICTED JET PORTION, ONE ARCUATE END PORTION OF SAID SPRING LOOP BEING FIXED TO SAID FREE ROD END AND THE OTHER ARCUATE END PORTION THEREOF BEING FIXED TO SAID STUD, THE MOVEMENT OF SAID ROD ALONG ITS LONGITUDINAL AXIS MOVING THE END PORTION OF SAID SPRING FIXED TO THE ROD RELATIVE TO SAID END PORTION FIXED TO SAID STUD WHEREBY FRICTION FROM SAID SPRING UPON MOVEMENT OF SAID METERING ROD IS MINIMIZED.