Carburetors

Claim 1

A CARBURETOR COMPRISING IN COMBINATION A PRIMARY FUEL RECEIVING CHAMBER CONNECTED TO A SUPPLY SOURCE, A STAND PIPE EXTENDING VERTICALLY THROUGH SAID CHAMBER TO PROJECT BEYOND THE UPPER END THEROF, THE LOWER END OF SAID STAND PIPE OPENING INTO SAID CHANBER AND OCCUPY ING A HORIZONTAL PLANE SPACED FROM THE FLOOR OF SAID CHAMBER, A LOWER HORIZONTAL SUPPORTING SCREEN SURROUNDING SAID LOWER STAND PIPE END AND SPANNING SAID CHAMBER, SAID CHAMBER HAVING A SUBSTANTIALLY VERTICALLY DISPOSED DISCHARGE APERTURE IN THE VICINITY OF THE UPPER END THEREOF, A SUBSTANTIALLY HORIZONTAL, PRIMARY CONDUIT COMMUICAING WITH SAID APERTURE, A MIXTURE CONTROL VALVE IN SAID CONDUIT, A PRIMARY AIR FILTER COMMUNICATING WITH SAID STAND PIPE EXTERNALLY OF SAID CHAMBER, A SECONDARY CONDUIT COMMUNICATING WITH SAID PRIMARY CONDUIT, A SECONDARY AIR FILTER COMMUNICATING WITH SAID SECONDARY CONDUIT, A VARIABLE AIR INTAKE VALVE AT THE LOCUS OF COMMUNICATION BETWEEN SAID PRIMARY AND SECONDARY CONDUITS, A THROTTLE VALVE IN SAID SECONDARY CONDUIT, AN UPPER HORIZONTAL SCREEN SURROUNDING SAID STAND PIPE SLIGHTLY BELOW SAID DISCHARGE APERTURE, THE SPACE WITHIN SAID CHAMBER SURROUNDING SAID STAND PIPE AND BETWEEN SAID UPPER AND LOWER SCREENS BEING OCCUPIED BY FIBERGLASS OR THE LIKE SUBSTANCE.