Pumping means for a charge forming apparatus

Claim 1

IN COMBINATION, PUMPING MEANS FOR PUMPING LIQUID FOR USE WITH A CHARGE FORMING APPARTUS INCLUDING (A) A PUMP BODY FORMED OF TWO MATING PARTS (B) SAID MATING PARTS EACH COOPERATING TO FORM A SERIES OF SPACED COPLANAR CAVITIES HAVING UPPER AND LOWER PORTIONS (C) A DIAPHRAGM INCLUDING GASKET MEANS CONNECTED THEREWITH (D) SAID DIAPHRAGM AND SAID GASKET MEANS LYING IN A PLANE INTERSECTING SAID CAVITIES AND PROVIDING SEALING AREAS BETWEEN THE WALLS OF SAID UPPER AND LOWER PORTIONS AND EXTENDING SUBSTANTIALLY ACROSS THE BREADTH AND WIDTH OF SAID MATING PARTS (E) SAID DIAPHRAGM EXTENDING ACROSS A FIRST OF SAID CAVITIES AND FORMING A PUMPING CHAMBER AND A LIQUID RECEIVING CHAMBER (F) MEANS COMMUNICATING WITH A SOURCE OF VARYING FLUID PRESSURE FOR ACTUATING SAID DIAPHRAGM TO ESTABLISH PUMPING IMPULSES IN SAID LIQUID RECEIVING CHAMBER (G) INLET AND OUTLET PASSAGES FOR CONVEYING LIQUID INTO AND AWAY FROM SAID LIQUID RECEIVING CHAMBER (H) A VALVE FOR SAID INLET AND OUTLET PASSAGES INTEGRALLY FORMED ON SAID DIAPHRAGM FOR CONTROLLING FLOW OF LIQUID INTO AND AWAY FROM THE LIQUID RECEIVING CHAMBER (I) A SECOND OF SAID CAVITIES FORMING A FIRST CUSHIONING CHAMBER INCLUDING A CUSHION CHAMBER PASSAGEWAY CONNECTED WITH SAID INLET PASSAGE AND LOCATED UPSTREAM OF SAID INLET VALVE FOR ELASTICALLY CUSHIONING SURGES OF THE LIQUID ESTABLISHED BY PUMPING IMPULES IN SAID PUMPING CHAMBER (J) SAID FIRST CUSHIONING CHAMBER AND SAID INLET AND OUTLET VALVES BEING RADIALLY SPACED OUTSIDE OF THE PERIPHERY OF SAID FIRST CAVITY AND ADJACENT THERETO, AND (K) SAID INLET PASSAGE AT THE CONNECTION WITH SAID CUSHION CHAMBER PASSAGEWAY OF SAID FIRST CUSHIONING CHAMBER EXTENDING IN A DIRECTION TRANSVERSE TO A RADIUS OF SAID FIRST CAVITY AND SUBSEQUENTLY HAVING A BEND THEREIN PRIOR TO OPENING INTO SAID LIQUID RECEIVING CHAMBER.