Pneumatic vibration eliminator

Claim 1

IN A TRIPARITE VIBRATILE STRUCTURE, A CASING ELEMENT PROVIDED WITH A CYLINDER HAVING A PISTON ELEMENT THEREIN AXIALLY RECIPROCABLE WITH RESPECT THERETO, ONE OF SAID ELEMENTS BEING AN ELEMENT IN WHICH THE OCCURRENCE OF VIBRATION IS OBJECTIONABLE AND THE OTHER THEREOF BEING A VIBRATORY ELEMENT CAPABLE OF DISPLAYING WITH RESPECT THERETO BOTH RELATIVELY SHORT-INTERVAL AXIAL VIBRATORY RECIPROCATIONS AND LONGER-INTERVAL AXIAL DISPLACEMENTS, INLET MEANS FOR SUPPLYING GAS UNDER PRESSURE TO SAID CYLINDER TO ESTABLISH THEREWITHIN A GASEOUS COLUMN OPERATIVE BETWEEN SAID PISTON AND CASING ELEMENTS FOR TRANSMITTING A NECESSARY AXIAL FORCE THEREBETWEEN, SUCH COLUMN BEING VARIED IN LENGTH BY RECIPROCATORY MOTION OF SAID PISTON ELEMENT RELATIVE TO SAID CASING ELEMENT WITH ATTENDANT VARIATION OF PRESSURE IN THE COLUMN, MEANS FOR MAINTAINING A SEALING RELATION BETWEEN SAID PISTON ELEMENT AND COOPERATIVE CYLINDR SURFACE, MEANS FOR COMPENSATING SUCH VARIATION OF PRESSURE IN SUCH COLUMN ASSOCIATED WITH SUCH RELATIVE RECIPROCATORY MOTION OF SAID ELEMENTS SO AS TO MAINTAIN SUBSTANTIAL CONSTANCY IN THE VALUE OF THE TOTAL AXIAL FORCE TRANSMITTED BETWEEN SAID ELEMENTS DURING ANY SUCH SHORT-INTERVAL VIBRATORY RECIPROCATION OF SAID VIBRATORY ELEMENT, OUTLET MEANS FOR PERMITTING THE ESCAPE OF GAS FROM SAID CYLINDER, AND AUTOMATIC CONTROL MEANS FOR REGULATING THE RELATIVE RATES OF THE SUPPLY OF GAS TO AND THE ESCAPE OF GAS FROM SAID CYLINDER TO SELECTIVELY INCREASE OR DECREASE THE MEAN VALUE OF THE PRESSURE WITHIN SUCH COLUMN IN RELATION TO ANY SUCH LONGER-INTERVAL AXIAL DISPLACEMENT OF SAID VIBRATORY ELEMENT RELATIVE TO SAID OTHER ELEMENT SO AS TO SUBSTANTIALLY CONTINUOUSLY MAINTAIN A PREDETERMINED MEAN POSITIONED RELATION BETWEEN SAID ELEMENTS IRRESPECTIVE OF THE APPLICATION OF ANY FORCE TENDING TO DESTROY SUCH POSITIONAL RELATION BY PRODUCING SUCH A LONGER-INTERVAL AXIAL DISPLACEMENT THEREBETWEEN, WHEREBY BOTH FORCE-INVARIABLE AXIAL POSITIONAL STABILITY AND THE PREVENTION OF THE TRANSMISSION OF AXIAL VIBRATION BETWEEN SAID TWO ELEMENTS ARE REALIZED IN SAID TRIPARITIE VIBRATILE STRUCTURE.