Booster pumps

Claim 1

A BOOSTER PUMP ASSEMBLY COMPRISING A GENERALLY CYLINDRICAL MOTOR HOUSING HAVING A BOTTOM WALL, A CENTRAL APERTURE IN SAID BOTTOM WALL, AN ELECTRIC MOTOR WITHIN SAID MOTOR HOUSING HAVING A ROTATABLE ARMATURE CONNECTED TO AN AXIALLY EXTENDING SHAFT THROUGH SAID CENTRAL APERTURE, A BOOSTER PUMP HOUSING, A SPIRAL VANE-TYPE BOOSTER PUMP IMPELLER WITHIN SAID BOOSTER PUMP HOUSING DRIVEN BY SAID SHAFT, A LIQUID RING PUMP BETWEEN SAID BOOSTER PUMP IMPELLER, AND SAID BOTTOM WALL OF THE MOTOR HOUSING DRIVEN BY SAID SHAFT, SAID LIQUID RING PUMP INCLUDING A PUMPING CHAMBER, A FLUID DISCHARGE CHAMBER AND A FLUID INLET CHAMBER, SAID INLET AND DISCHARGE CHAMBERS FORMED IN PART BY THE BOTTOM WALL OF SAID MOTOR HOUSING; FIRST FLUID PASSAGE MEANS BETWEEN SAID DISCHARGE CHAMBER AND SAID MOTOR CHAMBER, SECOND FLUID PASSAGE MEANS BETWEEN SAID MOTOR HOUSING AND SAID PUMPING CHAMBER OF SAID LIQUID RING PUMP, A DEFLECTOR ASSEMBLY ADJACENT SAID SECOND FLUID PASSAGE MEANS, SAID DEFLECTOR ASSEMBLY COMPRISING MEANS FORMING A CHANNEL HAVING AN OPEN END OPENING IN THE DIRECTION OPPOSITE TO THE ROTATIONAL DIRECTION OF SAID MOTOR ARMATURE AND A CLOSED END COMMUNICATING WITH SAID SECOND FLUID PASSAGE MEANS, AND THIRD FLUID PASSAGE MEANS AFFORDING COMMUNICATION BETWEEN SAID BOOSTER PUMP HOUSING AND SAID INLET CHAMBER OF SAID LIQUID RING PUMP.