Submersible pump

Claim 1

A SUBMERSIBLE PUMP AND ELECTRIC MOTOR COMPRISING A CYLINDRICAL INTERMEDIATE CASING CLOSELY ENCLOSING SAID MOTOR, A LOWER PUMPING CASING INCORPORATING AT ITS LOWER END A VOLUTE CHAMBER FOR A CENTRIFUGAL PUMP, AN INLET AT THE BOTTOM OF SAID PUMPING CASING, A CENTRIFUGAL IMPELLER CONNECTED TO BE ROTATED BY SAID MOTOR AND MOUNTED WITHIN SAID VOLUTE CASING, SAID VOLUTE CASING INCORPORATING A NUMBER OF VOLUTE CAVITIES AND CONNECTED DISCHARGE OUTLETS, DISCHARGE CONDUITS ELONGATED PERIPHERALLY ABOUT SAID VOLUTE CASING AND EXTENDING UPWARDLY FROM SAID DISCHARGE OUTLETS ON SAID PUMPING CASING TOWARD SAID INTERMEDIATE CASING, SAID INTERMEDIATE CASING HAVING A PERIPHERAL INTERMEDIATE PASSAGEWAY MEANS HAVING A NUMBER OF PERIPHERALLY ELONGATED INTERMEDIATE PASSAGEWAYS CORREPERIPHERALLY ELONGATED INTERMEDIATE PASSAGEWAYS CORRESPONDING TO SAID DISCHARGE CONDUITS DISPOSED UPON THE OUTSIDE WALLS OF SAID INTERMEDIATE CASING CLOSELY ADJACENT SAID MOTOR, A COLLECTING MANIFOLD CASING HAVING A COLLECTING PASSAGEWAY MEANS CORRESPONDING TO SAID INTERMEDIATE PASSAGEWAY MEANS, A SINGLE UPPER DISCHARGE CONDUIT IN THE TOP OF SAID COLLECTION MANIFOLD CASING, AND COUPLING MEANS CONNECTING ALL OF SAID CASINGS TOGETHER WITH SAID PUMPING DISCHARGE CONDUITS AND SAID COLLECTING PASSAGEWAY MEANS CONNECTED TO SAID INTERMEDIATE PASSAGEWAY MEANS FOR CHANNELING FLUID PUMPED FROM SAID VOLUTE CASING PAST SAID MOTOR AT RELATIVELY HIGH EFFICIENCY AND RELATIVELY SLIGHT RADIAL EXTENSION PAST THE SIDES OF SAID MOTOR.