Air pollution inhibiting means in the form of a fuel recirculating apparatus for an internal combustion engine

Claim 1

A COMBINED FUEL RECIRCULATING AND SMOG-ELIMINATING APPARATUS FOR AN INTERNAL COMBUSTION ENGINE OF THE TYPE THAT HAS AN INTAKE MANIFOLD AND AN EXHAUST PIPE, SAID APPARATUS COMPRISING A TANK PROVIDING A CHAMBER, A VACUUM LINE CONNECTING THE CHAMBER TO THE INTAKE MANIFOLD, A CONDUIT CONNECTING THE CHAMBER TO THE EXHAUST PIPE, AND A BLEEDER LINE CONNECTED TO THE VACUUM LINE AND COMMUNICATING WITH THE ATMOSPHERE, SAID VACUUM LINE AND CHAMBER BEING RESPONSIVE TO SUBATMOSPHERIC PRESSURE IN SAID INTAKE MANIFOLD AND OPERATIVE WHEN SUBJECTED TO SUCH SUBATMOSPHERIC PRESSURE TO DRAW UNBURNED FUEL CONSTITUENTS FROM THE EXHAUST PIPE THROUGH SAID CONDUIT TO SAID CHAMBER AND FROM THENCE THROUGH THE VACUUM LINE TO THE INTAKE MANIFOLD, SAID VACUUM LINE BEING EFFECTIVE TO DRAW ATMOSPHERE AIR THROUGH SAID BLEEDER LINE FOR MIXTURE WITH THE UNBURNED FUEL CONSTITUENTS ISSUING FROM THE CHAMBER PRIOR TO THEIR INTRODUCTION INTO THE INTAKE MANIFOLD.