Vibrationless pneumatic tool

Claim 1

A PRESSURE FLUID OPERATED VIBRATIONLESS TOOL HAVING, IN COMBINATION, A FREE PISTON CONSTRAINED TO OSCILLATE WITHIN A CYLINDER OF SUBSTANTIALLY GREATER MASS THEREBY SUBSTANTIALLY REDUCING THE SENSIBLE STROKE AMPLITUDE, A BARREL MEMBER AND HOLDING MEANS WHICH HOUSES AND GUIDES THE RECIPORCATING FREE PISTON AND CYLINDER COMBINATION AND INCORPORATES A RELATIVELY LARGE ACCUMULATOR SECTION FOR STORAGE, TRANSMISSION, AND CONNECTION OF THE PRESSURE FLUID FLOWING FROM THE PRESSURE FLUID SOURCE TO THE SAID FREE PISTON AND CYLINDER COMBINATION, SAID ACCUMULATOR SECTION VOLUME AND CONNECTED PRESSURE FLUID SOURCE BEING THUS ABLE TO SUBSTANTIALLY REDUCE THE MAGNITUDE OF THE OSCILLATING BARREL REACTION FORCE TO A POINT WHICH, COUPLED WITH THE STROKE REDUCED BY THE SAID FREE PISTON AND CYLINDER COMBINATION RENDERS THE BARREL HANDLE ESSENTIALLY VIBRATIONLESS TO THE OPERATOR, A TOOL BIT MEMBER GUIDED BY THE SAID BARREL AND SLIDABLY MOUNTED THEREIN WITH STEPPED CYLINDRICAL DIAMETERS PENETRATING INTO THE SAID CYLINDER THEREBY RECEIVING AN IMPACT BLOW ON EACH CYCLE OF THE SAID FREE PISTON, A TUBE MEMBER INTERJECTED BETWEEN THE SAID CYLINDER AND BARREL MEMBER AND WITH STEPPED SHOULDER AREAS PROTRUDING INTO THE SAID ACCUMULATOR ARRANGED TO PROVIDE A CONTINUOUS THRUST AGAINST THE SAID TOOL BIT THEREBY ELIMINATING THE TOOL BIT BOUNCE CONTRIBUTION TO THE RECOIL AND VIBRATION OF THE RECIPROCATING TOOL AND WITH SUBSTANTIALLY LARGE PORTING ORIFICES POSITIONED TO ADMIT PRESSURE FLUID TO THE SAID CYLINDER AT PREDETERMINED POSITIONS AS REQUIRED TO ASSURE CONTINUOUS OPERATION OF THE SAID FREE PISTON AND CYLINDER COMBINATION WHILE MAINTAINING PRESSURE FLUID CONTINUOUSLY WITH THE ACCUMULATOR VOLUME, CLOSURE MEMBERS FOR THE SAID BARREL, TUBE, AND CYLINDER WITH APERTURES AT THE TOOL BIT END TO PERMIT PENETRATION OF THE TOOL BIT THROUGH THE SLIDLY OSCILLATING TUBE MEMBER AND THE RAPIDLY OSCILLATING CYLINDER MEMBER INTO THE POSITION WHERE THE TOOL BIT CAN BE STRUCK BY THE FREE PISTON AND WITH FLUID PRESSURE VENTING AT EITHER END OF THE BARREL, TUBE, AND CYLINDER TO PERMIT CYCLIC UTILIZATION OF THE PRESSURE FLUID FOR TOOL OPERATION AND APPLICATION OF VENTING PRESSURE FLUID TO THE OUTER ENVIRONMENT INCLUDING THE WORKING SURFACE.