Motor actuated pumps

Claim 1

A COMBINATION FOR USE WITH COMPRESSED AIR COMPRISING A PLURALITY OF PUMPS FOR PUMPING EITHER A LIQUID OR VISCOUS MASS WITH EACH PUMP HAVING A PUMPING CHAMBER WITH A PUMP PISTON THEREIN FORMED WITH A RIGID ELONGATE ROD EXTENDING FROM THE RESPECTIVE PUMPING CHAMBER, A SEAL BETWEEN EACH ROD AND THE RESPECTIVE PUMPING CHAMBER FOR PREVENTING LEAKAGE FROM SAID PUMPING CHAMBER, AN AIR MOTOR CYLINDER FOR EACH PUMP, A MOTOR PISTON FOR EACH CYLINDER WITH EACH MOTOR PISTON DIVIDING THE RESPECTIVE CYLINDER INTO A PAIR OF VARIABLE VOLUME OPPOSED CHAMBERS AND RIGIDLY INTERCONNECTED WITH A RESPECTIVE ROD PASSING THROUGH A RESPECTIVE ONE OF SAID OPPOSED CHAMBERS, A COMMON CRANKSHAFT FOR SAID MOTOR PISTONS, MEANS INTERCONNECTIN SAID MOTOR PISTONS AND SAID CRANKSHAFT FOR RECIPROCATING SEQUENTIALLY SAID MOTOR PISTONS TOWARDS AND AWAY FROM THE AXIS OF SAID SHAFT WHEREBY THE RESPECTIVE PUMP PISTONS ARE RECIPROCATED IN ACCORDANCE WITH THE RECIPROCATION OF THE RESPECTIVE MOTOR PISTON TO CAUSE SAID PUMPS TO PUMP IN SEQUENCE, MEANS DEFINING A CLOSED CHAMBER ABOUT SAID SHAFT IN COMMON COMMUNICATION WITH THE OTHER OF EACHPAIR OF OPPOSED CHAMBERS WITH AN OPENING IN SAID SEALED CHAMBER FOR ADMITTING SAID COMPRESSED AIR AND AN OPENING IN SAID SEALED CHAMBER THROUGH WHICH SAID CRANKSHAFT PROJECTS, A VALVE MEMBER EXTERNAL TO SAID CHAMBER AND ROTATED BY THE PROJECTING END OF SAID CRANKSHAFT, AND A PLURALITY OF PASSAGEWAYS IN SAID VALVE MEMBER FOR COMMUNICATING SEQUENTIALLY THE ONE OF SAID OPPOSED CHAMBERS WITH SAID CRANKSHAFT OPENING AND WITH ATMOSPHERE, RESPECTIVELY.