Spray-tube dishwasher

Claim 1

IN A DISHWASHER HAVING A CABINET, A VAT WITHIN SAID CABINET, SAID VAT HAVING WALLS AND A BOTTOM MEMBER, AN ACCESS DOOR IN SAID CABINET TO SAID VAT, UPPER AND LOWER TABLEWARE RACKS WITHIN SAID VAT, AT LEAST SAID UPPER RACK BEING PIVOTALLY MOUNTED, AND A RESERVOIR DRAIN AND FLUID DISCHARGE PUMP FOR SAID VAT, AN IMPROVED POWER DRIVEN WASHING AND RISING SYSTEM COMPRISING A PUMP HOUSING AFFIXED TO THE EXTERIOR OF SAID BOTTOM MEMBER, SAID BOTTOM MEMBER HAVING A PERFORATION CENTRALLY LOCATED WITH RESPECT TO SAID PUMP HOUSING, SAID PUMP HOUSING HAVING A PERFORATION THEREIN COAXIAL WITH SAID FIRST MENTIONED PERFORATION, AN ELECTRIC MOTOR AFFIXED TO THE BOTTOM OF SAID PUMP HOUSING, AN ELONGATED SHAFT ON SAID MOTOR EXTENDING THROUGH SAID ABOVE MENTIONED PERFORATIONS INTO SAID VAT, AN IMPELLER MEANS WITHIN SAID VAT AFFIXED TO AND DRIVEN BY SAID MOTOR SHAFT, A PUMP IMPELLER AFFIXED TO SAID SHAFT WITHIN SAID PUMP HOUSING, SPRAY MEANS AFFIXED TO THE INSIDE SURFACE OF ONE OF SAID SIDE WALLS BETWEEN SAID UPPER AND LOWER RACKS, A CONDUIT CONNECTING SAID PUMP HOUSING TO SAID SPRAY MEANS THROUGH SAID SIDE WALL, SAID SPRAY MEANS BEING HORIZONTALLY ORIENTED AND EXTENDING LESS THAN HALF-WAY ACROSS SAID VAT, SAID PUMP HOUSING BEING OF VOLUTE DISHLIKE CONFIGURATION, HAVING AN OUTLET AT THE OUTER EDGE OF SAID HOUSING TANGENTIALLY ORIENTED WITH RESPECT TO SAID HOUSING AND ANGLED DOWNWARDLY FORM THE BOTTOM THEREOF, SAID OUTLET BEING CONNECTED TO SAID CONDUIT, SAID HOUSING FURTHER HAVING AN INTEGRALLY CAST BLEED LINE, A MEANS FOR CONNECTING SAID BLEED LINE TO SAID RESERVOIR DRAIN WHEREBY LIQUID IS DRAINED FROM SAID HOUSING DURING THE PUMP-OUT OPERATION OF THE DISHWASHER TO AVOID NOISY PUMP OPERATION DURING THE DRYING PHASE OF THE DISHWASHING CYCLE.