Piston impact motor and control therefor

Claim 1

PISTON IMPACT MOTOR WHICH COMPRISES A MOTOR CYLINDER, AN OSCILLATING PISTON MOVABLE BACK AND FORTH WITHIN SAID CYLINDER, A CONTROL MEANS ROTATABLY DISPOSED WITHIN SAID PISTON ON AN AXIS TRANSVERSE TO THE PISTON AXIS, SAID CONTROL MEANS BEING ROTATIONALLY IMBALANCED FOR EFFECTING ROTATION THEREOF DURING THE OSCILLATING MOVEMENT OF SAID PISTON AND HAVING TWO SEPARATE FLOW PASSAGES THEREIN, CONDUIT MEANS FOR ALTERNATELY FLOW COMMUNICATING THE END PORTIONS OF SAID CYLINDER ADJACENT THE CORRESPONDING ENDS OF SAID PISTON WITH ONE OF SAID FLOW PASSAGES AND THENCE WITH AN EXHAUST OUTLET MEANS DURING THE ROTATION OF SAID CONTROL MEANS, AND INLET MEANS FOR COMMUNICATING PRESSURE FLUID FROM A SOURCE TO THE OTHER OF SAID FLOW PASSAGE AND THENCE ALTERNATELY THROUGH SAID CONDUIT MEANS TO THE CORRESPONDING END PORTION OF SAID CYLINDER DURING THE ROTATION OF SAID CONTROL MEANS, SAID PRESSURE FLUID FROM A SOURCE BEING IN FLOW COMMUNICATION WITH ONE OF SAID END PORTIONS OF SAID CYLINDER VIA SAID INLET MEANS, AND THE OTHER END PORTION OF SAID CYLINDER BEING IN SEPARATE FLOW COMMUNICATION WITH SAID EXHAUST OUTLET VIA SAID CONDUIT MEANS AND SAID ONE FLOW PASSAGE DURING EACH HALF CYCLE OF OSCILLATING MOVEMENT OF SAID PISTON.