Pump assembly for dishwashing machines

Claim 1

A PUMP COMBINATION FOR USE IN A DISHWASHING MACHINE OF THE TYPE HAVING A VAT WITH A SUMP, THE SUMP HAVING A FLOOR WITH AN OPENING THEREIN, THE SAID COMBINATION COMPRISING A FIRST PUMP LOCATED BENEATH THE FLOOR OF THE SUMP, SAID FIRST PUMP HAVING A HOUSING ATTACED TO SAID FLOOR ABOUT THE OPENING THEREIN, A SECOND PUMP LOCATED ABOVE THE FLOOR OF SAID SUMP, THE SAID SECOND PUMP HAVING A HOUSING COMPRISING A PLATFROM MEMBER WITH A CENTRAL OPENING, AND DEPENDING LEGS ATTACHED TO THE HOUSING OF THE FIRST PUMP, SAID DEPENDING LEGS PROVIDING A SINGLE SPACE BETWEEN THE SAID TWO PUMPS ABOVE THE FLOOR OF THE SUMP THROUGH WHICH WATER IS DELEIVERED TO BOTH PUMPS, BOTH OF SAID PUMPS HAVING CENTRIFUGALLY ACTING IMPELLERS, A MOTOR DEPENDING FROM THE HOUSING OF THE FIRST PUMP AND HAVING A SHAFT CONNECTED TO THE IMPELLERS OF BOTH PUMPS, THE SAID SECOND PUMP HAVING AN UPWARDLY ELONGATED HOUSING CONNECTED WITH THE SAID PLATFORM MEMBER, MEANS WITHIN THE SAID HOUSING OF THE SECOND PUMP FOR CONVERTING THE CENTRIFUGAL FLOW OF WATER PRODUCED BY THE IMPELLER THEREOF TO AN UPWARDLY DIRECTED AXIAL FLOW THROUGH SAID HOUSING, PLATE-LIKE MEANS WITH AN OPENING FOR ADMITTING WATER TO THE FIRST PUMP ND FORMING PART OF THE HOUSING THEREOF, AND MEANS WITHIN THE SPACE BETWEEN THE TWO PUMPS FOR PREVENTING A SWIRLING ACTION OF THE WATER ENTERING SAID SPACE AND FEEDING BOTH PUMPS, THE SAID LAST MENTIONED MEANS COMPRISING A STATIONARY SLEEVE SURROUNDING THE SAID MOTOR SHAFT AS IT PASSES THROUGH SAID SAPCE FROM THE FIRST PUMP TO THE SECOND PUMP.