Fluid pumping and separating apparatus

Claim 1

A POSITIVE DISPLACEMENT PUMP AND SEPARATING APPARATUS FOR SEPARATING FLUIDS OF DIFFERENT DENSITIES COMPRISING, A PUMP CASING HAVING SPACED WALLS DEFINING A PUMP CHAMBER, INNER AND OUTER ECCENTRICALLY RELATED ROTORS IN SAID CHAMBER HAVING MEANS EXTENDING THEREBETWEEN DEFINING A PLURALITY OF SEGREGRATED PUMPING COMPARTMENTS HAVING INNER AND OUTER WALLS, PLATES ATTACHED TO OPPOSITE SIDES OF ONE OF SAID ROTORS FOR ROTATION THEREWITH AND EXTENDING INTO OVERLAPPING RELATION WITH THE OTHER OF SAID ROTORS TO ENCLOSE THE SIDES OF THE PUMPING COMPARTMENTS AND REDUCE FRICTIONAL DRAG BETWEEN THE FLUID IN THE COMPARTMENTS AND THE WALLS OF THE CHAMBER, ONE OF SAID PLATES HAVING A PLURALITY OF OPENINGS THEREIN LOCATED CLOSELY ADJACENT ONE OF THE WALLS OF THE COMPARTMENTS AND SPACED RADIALLY FROM THE OTHER WALLS OF THE COMPARTMENTS, MEANS FOR ROTATING SAID ROTORS TO CENTRIFUGALLY SEPARATE FLUID IN THE COMPARTMENTS INTO INNER AND OUTER LAYERS ACCORDING TO THE RELATIVE DENSITIES OF THE FLUIDS, SAID ROTORS BEING SUPPORTED FOR ROTATION ABOUT RELATIVELY ECCENTRIC AXES WHEREBY THE COMPARTMENTS PROGRESSIVELY EXPAND DURING ONE PORTION OF EACH REVOLUTION AS THEY MOVE PAST AN INLET ZONE AND PROGRESSIVELY CONTRACT DURING A DIFFERENT PORTOIN OF EACH REVOLUTION AS THEY MOVE PAST A DISCHARGE ZONE, SAID CASING HAVING INLET PORT MEANS COMMUNICATION WITH SAID OPENINGS AS THEY MOVE PAST SAID INLET ZONE WHEREBY EXPANSION OF THE COMPARTMENTS DRAWS FLUID IN THROUGH THE INLET PORT MEANS, SAID CASING HAVING A FIRST OUTLET PORT COMMUNICATING WITH SAID OPENINGS AS THEY MOVE PAST A FIRST SECTOR OF SAID DISCHARGE ZONE AND SECOND OUTLET PORT COMMUNICATING WITH SAID OPENINGS AS THEY MOVE PAST A SECOND SECTOR OF SAID DISCHARGE ZONE.