Pump with radial cylinders

Claim 1

A PUMP COMPRISING A PUMP BODY PROVIDED WITH A PLURALITY OF CYLINDERS IN RADIAL ARRANGEMENT ABOUT AN AXIS, A PISTON SLIDABLY SUPPORTED IN EACH OF SAID CYLINDERS, A DRIVING SHAFT ADAPTED FOR ROTATION ABOUT SAID AXIS, MEANS COUPLED TO SAID SHAFT AND EACH OF THE PISTONS FOR RECIPROCATING THE SAME UPON ROTATION OF SAID SHAFT TO PROVIDE SUCTION AND COMPRESSION STROKES, EACH OF SAID PISTONS HAVING AN AXIAL BORE AND A TRANSVERSE OPENING IN COMMUNICATION WITH THE BORE, SAID PUMP BODY DEFINING AN AXIAL WELL AROUND SAID SHAFT ADAPTED FOR CONNECTION TO A SOURCE OF FLUID, THE TRANSVERSE OPENINGS OF THE PISTONS PASSING INTO SAID WELL WITH THE PISTONS IN THE SUCTION STROKE TO ADMIT FLUID INTO THE CORRESPONDING CYLINDER THROUGH SAID TRANSVERSE OPENING AND THE BORE OF A RESPECTIVE PISTON, SAID BODY BEING PROVIDED WITH A PASSAGEWAY EXTENDING FROM EACH CYLINDER FOR ENABLING DISCHARGE OF FLUID THEREFROM WITH THE PISTON THEREIN IN THE COMPRESSION STROKE, A PAIR OF ISOLATED CHAMBERS BEING PROVIDED, IN RESPECTIVE COMMUNICATION WITH PAIRED GROUPINGS OF SAID CYLINDERS THROUGH SAID PASSAGEWAYS, AND A VALVE FOR EACH OF SAID CHAMBERS FOR CLOSING COMMUNICATION BETWEEN THE ASSOCIATED CHAMBER AND RESPECTIVE PASSAGEWAYS OF ASSOCIATED CYLINDERS, SAID CHAMBERS BEING OF ANNULAR FORM AND EXTENDING IN PLANES PARALLEL TO THE CYLINDERS, EACH OF THE VALVES INCLUDING A DEFORMABLE BLADE.