Submersible motor sump pump

Claim 1

IN A SUMP OR LIKE PUMP ADAPTED TO BE IMMERSED IN A LIQUID TO BE PUMPED, THE COMBINATION OF A MOTOR AND AN EXTERNALLY SEALED HOUSING STRUCTURE ENCASING SAID MOTOR, SAID MOTOR HAVING A CASING IN WHICH ITS SHAFT IS MOUNTED FOR ROTATION, SAID CASING HAVING INTEGRAL EXTERNAL, AXIALLY PROJECTING AND ALIGNED FORMATIONS AT THE AXIAL ENDS THEREOF, THROUGH ONE OF WHICH FORMATIONS THE SHAFT EXTENDS, SAID HOUSING STRUCTURE COMPRISING AT LEAST TWO HOUSING PARTS IN FIXED AND EXTERNALLY SEALED RELATION TO ONE ANOTHER TO PROVIDE A SEALED INTERIOR HOUSING SPACE IN WHICH SAID MOTOR CASING IS DISPOSED, SAID HOUSING PARTS EACH BEING PROVIDED WITH AN INTEGRAL RECESS FORMATION DIRECTLY SURROUNDING AND ENGAGING ONE OF THE RESPECTIVE MOTOR CASING FORMATIONS TO CONSTITUTE WITH THE LATTER THE SOLE MEANS FOR MOUNTING SAID MOTOR IN SAID HOUSING STRUCTURE, SAID MOTOR CASING AND SAID HOUSING STRUCTURE BEING RELATIVELY PROPORTIONED TO PROVIDE AIR SPACE THEREBETWEEN AT THE SIDES THEREOF, ONE OF SAID HOUSING PARTS HAVING A TUBULAR EXTENSION COAXIAL WITH SAID RECESS FORMATION OF SAID PART WHICH PROJECTS AXIALLY AND THROUGH WHICH THE MOTOR SHAFT EXTENDS, AND A PUMP HOUSING IN AXIALLY TELESCOPED ENGAGEMENT WITH SAID TUBULAR EXTENSION AND CONTAINING AN IMPELLER CONNECTED TO SAID MOTOR SHAFT, SAID IMPELLER HAVING SHAFT MEANS FIXEDLY CONNECTED THERETO TO DRIVE THE SAME, INCLUDING A SLEEVE ELEMENT PROJECTING INTO SAID TUBULAR EXTENSION AND FIXEDLY CONNECTED TO THE MOTOR SHAFT.