Air valve secondary carburetor

Claim 1

A MULTI-STAGE CARBURETOR COMPRISING A BODY STRUCTURE HAVING A PRIMARY MIXTURE CONDUIT AND A SECONDARY MIXTURE CONDUIT FOR THE FLOW OF AN AIR AND FUEL MIXTURE THERETHROUGH, MEANS INCLUDING A PRIMARY NOZZLE FOR PROVIDING FUEL FLOW INTO THE SAID PRIMARY CONDUIT, A SECONDARY NOZZLE FOR PROVIDING FUEL FLOW INTO THE SAID SECONDARY CONDUIT, MANUALLY OPERABLE MEANS INCLUDING A PRIMARY THROTTLE AND A SCONDARY THROTTLE MOVABLY MOUNTED RESPECTIVELY WITHIN SAID PRIMARY AND SECONDARY CONDUITS AND DOWNSTREAM RESPECTIVELY OF SAID FUEL NOZZLES FOR CONTROLLING THE FLOW OF AIR-FUEL MIXTURE THERETHROUGH, A CONTROL VALVE WITHIN SAID SECONDARY CONDUIT UPSTREAM OF SAID SECONDARY FUEL NOZZLE, MEANS ECCENTRICALLY MOUNTING SAID CONTROL VALVE FOR MOVEMENT FROM A CLOSED POSITION AND TOWARD AN OPEN POSITION BY AIR FLOW THROUGH SAID SECONDARY CONDUIT, AND SPRING BIASING MEANS FOR SAID CONTROL VALVE CONNECTED TO SAID SECONDARY THROTTLE AND RESPONSIVE TO THE POSITION OF THE SECONDARY THROTTLE WHEREBY SAID CONTROL VALVE IS URGED INTO A CLOSED POSITION WHEN SAID SECONDARY THROTTLE IS IN A CLOSED POSITION AND THE DEGREE OF BIAS EXERTED ON SAID CONTROL VALVE IS ALTERED AS SAID SECONDARY THROTTLE IS OPENED.